How Accurate are Monte Carlo Forecasts in Retirement Income Planning - June 2023
How Accurate are Monte Carlo Forecasts in Retirement Income Planning?
Last published on: September 29, 2025
Learning Objectives:
- Understand how forecasting models can over- or under-predict retirement risk and the critical effects of these errors on clients.
- Evaluate different approaches to capital market assumptions (traditional Monte Carlo, Regime-Based Monte Carlo, Historical simulation, and reduced-return Monte Carlo) and how these affect retirement income advice.
- Discover how ongoing adjustments can help mitigate forecasting errors as a retirement income plan evolves.
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Webinar Transcript
thank you good to see everybody thanks for joining I'm going to pull up our slides here so this uh is you know one
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of our two monthly webinars um the the one we had last week is more of
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a q a new features and and so on um and the second one the one that we're
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doing right now is it tends to be on you know broader topics maybe things that Derek and I have done research on
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recently um and so this is really a presentation about some of the uh the material that
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we published on kitchiss.com a few months back
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um about about forecasting in uh in retirement
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income planning and um some of the results that we that we found in in looking at different ways of forecasting
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what kinds of you know forecasts how they perform uh in comparison to each other and in comparison to what we would
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what we would hope and so although you know there are some statistics and things in this presentation it's
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actually incredibly practical for people actually doing retirement income planning with real clients
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um so hopefully we can talk a little bit about that and we have Derek here um to talk about the the places where
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this touches on on his practice and maybe things that that he's done to um
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to accommodate these these findings so um you know really since probably the
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90s um we have used probabilistic forecasts and retirement
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planning um and what's a probabilistic forecast it's really just saying well we don't really know exactly how things will turn
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out but maybe we're not kind of 50 50 either maybe it's not a coin flip maybe we have a feeling hey it's more likely
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to be this or it's more likely to be that and so we make these forecasts and they can help guide our our decision
1:56
making but behind any kind of probabilistic forecast is the assumption that the the
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forecast is is accurate in some in some meaningful sense so you know for example
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if we forecast that a retirement income plan has an 80 probability of success
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and you know uh if you've been on our webinars in the past or if you use income lab software that we don't like
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to frame things in terms of success and failure it for for many reasons probably the most important being that's not
2:26
actually the way that retirement works out people don't succeed or fail they adjust but in this presentation we will
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use that language since it is so common um outside of income lab
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um to kind of frame the discussion so if you predicted an 80 probability of success you know you'd expect that uh if
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if you did that lots and lots of times about 80 of the time they would quote unquote succeed
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um you wouldn't want to predict an 80 chance of success but actually have only
2:58
40 of those cases if you kept you know putting people on plans that had 80 probability of success you would not
3:05
expect 60 of them to quote unquote fail right that would be a really bad outcome that's underestimating risk
3:12
but you kind of also wouldn't want to forecast say a 40 probability of success
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um but actually 70 of those people succeed so that's underestimating risk and which leads to probably giving
3:23
advice that is overly Frugal on the spending side right so we kind of want
3:28
things to be roughly accurate so how could you measure the accuracy of probability
3:35
probabilistic forecasts uh well weather forecasting is a reasonable analogy here
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it's not perfect no analogy is um but we could do a categorical forecast say yes or no will it rain
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tomorrow yes or no um but because the world is messy and
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there's just there's just too many things going on we can't really hope for probabilistic forecasts to be
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um to be correct you know to be the best we can do um and so we we tend to go for
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probabilistic forecasts so that's why on the you know the Weather Channel you'll get percentages
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um so if the if it doesn't rain tomorrow which of these is more accurate well the
4:18
75 right versus being certain um what about if it doesn't rain
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tomorrow sorry what if it does rain tomorrow
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again offering kind of a low but non-zero chance of rain is is better than saying
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um no no it won't rain and then it does rain okay so how can we evaluate
4:44
probabilistic forecasts um what we do is we we take the forecast themselves which are you know
4:51
percentages and we compare it to the actual outcome so this shows a good
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model of rain forecasting um which is really just kind of you know higher numbers uh it predicts higher
5:05
chance of rain on the days that it actually does rain lower chance of rain on days it doesn't versus the opposite the bad model is really getting things
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getting things wrong here and then what we do is we we look at kind of the
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average um the average error uh in the in the model and the higher the error the worse
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okay so for those of you who are stats nerds this is a briar score it's the the
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uh uh the the mean squared error
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um but all you really need to know is ideally we would have zero zero error right but that's when we're doing
5:43
probabilistic forecasts that's that's never going to happen so we just want really low errors and the higher the
5:48
error the worse the model is um there's another way to measure how
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good our our probabilistic forecasts are and that's using something called calibration so again this is saying
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let's let's group together every time we predicted you know a an 80 chance of
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rain and say okay on how many of those days did it rain and if it was eighty percent then you're
6:15
perfectly calibrated so the perfect calibration line is just a diagonal on this right if I pre if I group together
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all the times I said 90 and 90 of the time it did rain I'm perfectly calibrated
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um now if I'm over this line um I have what we're going to call a wet
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bias right so actually here in order to make it match probability of success I'm I'm showing this as predicting no rain
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predicting um uh dry days right which is analogous to success quote unquote in retirement
6:48
income planning so above the line is a wet bias I'm predicting more rain than
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there actually is so I'm being conservative below the line is a dry bias where I'm predicting things will be
6:59
better than they actually end up being and actually in in weather forecasting
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it wouldn't be uncommon for us to have a wet bias uh maybe even on purpose
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um because people tend to prefer positive surprises right so people
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aren't going to be as upset with you if you say it'll rain and it doesn't uh
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that's just hey great versus you you say it'll be dry but it rains right you
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didn't bring the umbrella okay so we're going to use those two tools the you know the kind of overall
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error level of the forecast and there will always be error and calibration to test different ways of doing retirement
7:41
forecasting um and we tried to use models that are
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available and or commonly used um so that again this could be really
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um this could be uh usable in your in your practice so
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we have uh traditional Monte Carlo which is by far the most commonly used uh
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approach reduced Capital Market assumption Monte Carlo which just took our approach to traditional Monte Carlo
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and reduced because return assumptions uh regime-based Monte Carlo
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which uses two sets of Capital Market assumptions one for the near term and one for the long term and historical
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analysis which uses historical sequences of returns and inflation to model
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um to model the situation so uh in order to test forecasting we
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have to have a a completely systematic way of producing Capital Market
8:43
assumptions in order to test them right because we're we're going to be testing forecasts that would have been made in
8:49
the past against what really happened in the past so we can't cheat we can't cheat by saying well I know what
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happened so I'm going to create really good Capital Market assumptions um so this is how we did that how we
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created them formulaically you know no cheating no putting your hands on the scale so for traditional Monte Carlo we
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created the Capital Market assumptions using the preceding 30 years of of
9:15
returns and inflation okay so for each point in time we looked back 30 years took the average and
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standard deviation and correlations for for that for reduced Capital Market assumption
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Monte Carlo we just reduced that by two percent um and for all these we're using a 60 40
9:33
portfolio so if you're kind of wondering how large of a reduction that is it's
9:38
compared to a 60 40 portfolio for regime based um we use the approach that we actually
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use in the income lab software to produce our default Capital Market assumptions
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um which is we take all of history and for and then we filter out
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any of the periods that are least like um each point in time from an economic
10:03
standpoint so think of that as inflation PE Cape things like that so uh you know
10:10
unemployment so we have a kind of a set of of things to um
10:16
to use as economic filters um and and that's what we apply for this study we actually simplified it even
10:22
more and we just used Cape an income lab we use a little bit more than that and what we do is then we so we filter out
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um I believe for this study it was it was half of history and then using the remaining history the kinds that are
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closest to um to to um you know each point in time we use
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the uh we we produce two sets of Capital Market assumptions one for the first 10 years one for
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um the remainder of the plan and then for historical at each point in
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time we're just using all historical returns and inflation that's available up to each point in time so all this is
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completely formulaic there's no opinion uh in here and I think it probably
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um you know it's it's as Fair as as you can get um for representing how producing
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Capital Market assumptions at each point in time could work um this is just a look at the how
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regime-based Monte Carlo would apply because this is a maybe a little less familiar to a lot of people
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um so if you applied the near-term Capital Market assumptions to the first
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chunk our default is 10 years and actually often Capital Market assumptions that are available to
11:35
advisors really are more for like a 10-year period than a 30-year period so we apply the near term and then
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everything else is the long term so again not to not to belabor this
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point but I think it's really important to understand what this what this uh study is doing so let's say for example
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we're looking at forecasts that would have been made in June 1960.
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at that point it's going to look at the 30 years preceding that point to create
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the Capital Market assumptions and then it's going to forecast probability of success for the period after that all
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right and then we'll do it again for July and now we have one more month in the preceding period and we're pushing a
12:18
month forward in the forecast period than August and so on for regime based
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Monte Carlo doing a very similar thing except now because we're using all of history up to
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that point but filtering it um in June we have you know everything
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from 1871 which is when our data began up through um up through May of 1960.
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and then we moved to July August and so on
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and again the filter is we're just excluding half of History where Cape is furthest from the value at the forecast
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point so it's not you know does is Cape similar to today it's in this case is
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Cape similar or not to August 1960 right so it's always trying to recreate what
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would forecasting really have been like at each point in time for historical again we're using all
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preceding historical returns and inflation and then as time goes on we're getting a little bit more a little bit
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more data Okay so using that approach
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um how do these models perform um and and again the first way we measure this is with error and our
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reminder is lower error is better higher errors are worse
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um we the way we if we kind of tested all this was we said all right we're
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going to take um every monthly point from 1951 to 2002
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and we're gonna give each model um 200 different systematic withdrawal
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plans from a 60 40 stock and bond portfolio very simple plans nothing it's
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just withdrawals um it's it's flat inflation adjusted withdrawals we're not applying the smile
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or things like that that we often people do on income lab there's no social
14:16
security or anything very very stripped down simplistic approach
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um obviously we would want to you know apply these to to more complex plans as well but it's often uh really useful
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just to start with something simple um and the 200 different systematic withdrawal plans are between
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um you know very conservative low withdrawal and higher withdrawal plans
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um that we you know we pre-baked them to be a range that was from extremely safe to to extremely risky uh and so this
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allowed these models to have a chance to say oh this one will be risky this one will be safe this one will be in between
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um the reason that it only went to 2002 was we were having it predict
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um success or failure of a 20-year plan so the last 20-year plan at the time that we did this work would have ended
15:09
in 2022 um so we couldn't go further than that um we did test 30-year plans as well and
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then looked at the correlation between those results and the 20-year plans and it was quite good so we're we're
15:22
relatively confident that this these results extend to longer plans as well the reason we started in 1951 was we
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wanted to give those those approaches that needed a lot of history we wanted to give them a good amount of History to
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be able to work with right it goes from 1871 um so if we had started them in 1900
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they would have had very few years to actually um to actually use in there in producing their their model
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of the world okay so what were the results um there was really a clear set two sets
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of results traditional Monte Carlo and reduced uh Capital Market assumption Monte Carlo which are by far the most
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commonly used approaches had I had a lot higher error rates than
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regime-based Monte Carlo and historical so there's a way of comparing these and basically the two on the right had 25
16:16
percent lower error um than than the than the two on the left
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so pretty pretty large pretty pretty important difference here
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what about calibration um remember this is about hey you know is the model particularly good in
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certain spots particularly bad in other spots is it is it um you know consistently above the line or
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consistently below the line and so on and probably because most people aren't
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uh you know producing plans with a you know 10 probability of success uh or at
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least you know following plans like that we can just you know focus on the upper side of this
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um where interestingly the traditional Monte Carlo
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uh gets a pretty big dry bias meaning it's underestimating risk right it's
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telling people hey leave the umbrella at home it's going to be fine but then it rains
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um it's actually interesting because on the on the lower end which again nobody's really using uh it it has a wet
17:21
bias but then in the important area it goes to a dry bias
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um regime based Monte Carlo on the other hand which is the green line consistently has a wet bias
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um so this is overestimating risk meaning it's going to say whoa whoa whoa
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take the umbrella take the rain coat but then you know more than is predicted it
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turns out to be a sunny day so it's overestimating risk
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what does that mean for clients um in reality or for advisors
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uh let's pick the uh the predicted 85 probability of success that's a very and
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I think most people would agree even though you know again at income lab we we try to reject this success failure
18:10
framing as much as possible but you know for the purpose of this I'll use it um if we looked at plans that that had a
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predicted 85 probability of success uh for every 100 people that were set
18:24
off on their Journey with one of these plans the traditional Monte Carlo
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um you would have expected 85 of them to be fine and you know 15 to uh to
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quote-unquote fail which you know in our world means adjust downward uh but in
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fact 27 of them per 100 would have had to decrease spending over time because this was underestimating risk so it was
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predicting 85 but in reality it was 73. for regime-based Monte Carlo predicted
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85 in reality it was over 91. so uh we
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we expected 15 out of 100 to need to adjust downward but in fact only nine uh had to so uh basically under promising
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over delivering for the green line for regime-based Monte Carlo um over promising under delivering for
19:14
the red line traditional Monte Carlo um and I chose 85 both because I think most people would agree that's a
19:20
reasonably strong plan and because it's kind of it is sort of a middling place for both
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of these um you know there are obviously you can see that these lines are quite Jagged so are there spots where they're closer to the line spots where they're
19:32
farther away so this just kind of one representative um spot here
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um I think before we we get on to the next Point um and Derek I think uh you know you
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have some some thoughts on this uh we're we'll come back to this wet and dry bias
19:52
and talk about whether um one or the other would be you know
19:57
preferable um given that we know there are errors when you're making forecasts what kinds of errors are better as an advisor and
20:04
as a client um and I think you know most would agree that a a wet bias an overestimate at
20:11
risk um under promising and over delivering is a is a better safer way to
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go for for the advisor on the client and it also leads to better client experiences because again you're going
20:22
to set out expecting that eight that 15 out of 100 will need to adjust downward
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um but in fact only nine will and that probably also means uh you know more people will get pay raises than than you
20:35
had expected so surprising to the upside okay
20:40
let's look at um go back to errors now and and I think
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it's interesting to look at not the entire uh time period all at once again that
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was from the 50s to the to the early 2000s for when we're making those forecasts but to look at them in Rolling
20:59
five-year periods to kind of see okay are there environments where some models
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perform really well some models perform really poorly do they flip ever and so on
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um and here we see our two uh worst
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performing models overall in the in the Bold in the orange and the red that's traditional Monte Carlo and reduced uh
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Capital Market assumption Monte Carlo um they do have brief periods where the
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error is quite low especially the reduced um Capital Market assumption Monte Carlo
21:36
which kind of makes sense basically if we look through these periods so at each point in time we're looking at the
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errors uh for the forecast that in the five preceding years so in
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1956 it's the the forecast from 51 to 56. so we see through the 60s and into the
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70s reduced Capital Market assumptions did really well why because that turns out in retrospect
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that that was kind of the worst sequence of returns for systematic withdrawals
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um in the period we're looking at right so of course having used lower Capital
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Market assumptions during this time would have been better what we're seeing here is reduced Capital Market assumption Monte Carlo it's a one-trick
22:23
pony it does Well when things are going to turn out to be rough
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um traditional Monte Carlo has a couple spots where it's low you can see basically uh the late 50s
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and then again it does well um kind of in the late 70s the reason is
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it's always used in the preceding 30 years and you know the period in the 60s and 70s was had low
22:47
inflation-adjusted returns you can see everything did pretty poorly in the 80s
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um because we were you know the 80s actually turned out to be a really good time to retire because sequence of
22:59
returns was going to be really good um none of the models got that quite right but
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you can see that the historical and regime based uh did not you know kind of
23:12
just rise to the moon on their on their errors and overall these two approaches
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did um did fairly well across periods at least comparatively
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um you can see regime based actually probably because of that wet bias right
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it's kind of over over predicting risk in a lot of cases it does really well through that worst period in this in
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this study from the 60s um and again it actually does really
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well in the uh into the.com bubble era area
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um probably because of that Cape um filter right so Cape was really high so it was predicting low returns
23:54
um so we can see here that these two historical and regime based are are a
23:59
little bit closer to being kind of uh all environment um uh good performers at least in
24:06
comparison to the others that we looked at so more consistent across that range of environments and this is the thing
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when we're doing forecasting when we're doing retirement income planning we don't really know what world people are
24:17
going to live through so we would like models that actually have a have a hope of doing okay whether things turn out
24:22
really good or really bad or somewhere in between so um
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what can we take from from this um I I think you know there's a lot of
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stats in here but let's let's back up we tried to look at
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um at approaches to forecasting approaches to planning approaches to
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kind of you know scoring a plan you know seeing whether it was uh you know really
24:50
safe or or really aggressive that people actually use and traditional Monte Carlo which uses
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one set of Capital Market assumptions is certainly um the most common way to do this
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um you could you could uh you know argue that our use of the preceding 30 years
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you know is not representative how people do this um and maybe that's true for you
25:15
um we also looked at uh reducing those Capital Market assumptions which I think I think that a lot of people will do
25:21
especially on kind of some of those forward-looking um Capital Market assumptions that you can find they do tend to say
25:28
um okay let's reduce our our assumptions going forward um certainly if we had a big database of
25:35
the Capital Market assumptions that were actually made at each time at each point in time that would be an even better way
25:41
to do this study but I think the results here are are fairly clear that
25:46
traditional Monte Carlo um using one set of Capital Market assumptions and using historical
25:52
averages and reducing those Capital Market assumptions
25:57
um really don't perform well compared to other options that are available probably the most commonly used
26:06
um of those other Methods at least in research is historical analysis so
26:13
um you know like the uh Bill bangin's uh work in the 90s that led to the you know
26:18
four percent rule that was all historical analysis um I think one worry people have often
26:24
had about historical analysis is hey you're only looking at things that have actually happened you're not looking at things that haven't happened but could
26:31
happen um so this is and fair enough that philosophically certainly uh Rings true
26:36
and makes a lot of sense um as a as a critique of historical analysis but what really matters with
26:43
our analysis with our forecasting with our planning is what would the actual impact on our advice and on client
26:50
outcomes be right so this isn't about kind of some just purely academic
26:55
discussion it's what's the impact and it looks like historical analysis even
27:00
though it's only using you know what's actually happened is actually still providing better
27:06
um lower error rates than you know traditional Monte Carlo at least done
27:12
here um regime based Monte Carlo has ever so slightly higher error rates across the
27:17
board um oh no sorry I'm wrong uh regime base has lower error rates across the board
27:23
but again this is a very small difference we don't know for sure um whether this will will be sustained
27:29
um and it provides a little bit more of a of a
27:35
consistent error meaning it's it's almost always I think maybe truly always yeah uh erroring on the Wet Side on the
27:44
over predicting risk on the under promising and over delivering side whereas historical you can see
27:51
um is a little bit more of a mixed bag it's the blue line here so it does it it stays a little tighter but it tends to
27:57
kind of go to either side of the of the perfect calibration line here
28:03
so I I think Derek and I were both you know somewhat surprised um by these results
28:10
um but also hardened in a way that there are you know there are ways of doing forecasting that improve on the status
28:18
quo so using historical using um regime based Monte Carlo do does
28:24
reduce errors you know by 25 um and that's that's truly important for
28:31
you know these are consequential things that we're advising people on um on how much they can spend in
28:36
retirement what the chances are that they'll have to adjust and so on so really using models that have lower
28:42
error uh you know is kind of a no-brainer I think
28:48
um probably the maybe the most important uh conclusion here though is that no model
28:55
was even close to being error-free so these these error rates uh or these
29:03
error scores are high to give you a comparison
29:09
if I had you know if I was predicting rain um and I just always said there's a 50
29:15
chance of rain all right I'm just going to take the I call it fence sitting right I'm sitting on the fence every day that error rate
29:23
would be 0.25 so uh and that's essentially like I'm
29:30
not going to do any work I'm just going to predict 50 50 on everything okay I would get an error of 0.25 so
29:37
these error rates are high um you know reduced Monte Carlo 0.18 I
29:43
mean that's just that's that's really bad um on these five-year rolling periods
29:49
our error rates get far above that we're just you know like the prediction is worse than just flipping a coin
29:55
um so and and even with uh some of these better performing ones regime based and
30:01
historical they they do get high occasionally like in the 80s um so what do we do about that
30:08
this shows that we really can't um we can't just take our prediction
30:15
probability of success or you know in an income lab we talk we think about it as risk and you know when would we adjust
30:21
and so on um we can't just take those from the beginning of our plan and and run with
30:28
them um and never and never come back to it never adjust this shows that the errors
30:33
are high enough that we really need a plan for adjustment a systematic plan for
30:39
adjustment and there's a couple reasons for that one is just that we know that we will be wrong
30:45
we're going to try you know to use the best models possible to have the lowest errors um but we're going to need a hand on the
30:51
steering wheel right so it's um you know it's a little bit like uh
30:57
like driving down the road you know you might be able to go for a while just just pressing the accelerator and hoping
31:02
the wheels stays straight but you as things come up as potholes come up as you know little deviations in the road
31:08
come up you gotta you gotta adjust because now you're learning what road you're actually driving down what what adjustments are needed
31:15
um and that's the other part of this is as time goes on let's say somebody retired in I don't know 1980
31:23
well things would have felt pretty bad at that time they've just come through stagflation they didn't know when
31:30
inflation was going to end it really didn't wind down until a few years later or start winding down and so
31:37
as time goes on the planner and the model that you're using um is learning
31:43
more about what environment it's in so it'd be very silly to go from 1980 to 1986 and not use you know what you've
31:50
learned between 1980 and 1986 to improve uh your advice for a client and so
31:58
that's another reason that um that it's not just about forecasting
32:04
success and failure or you know spending capacity and guard rails at the
32:09
beginning of retirement it's really important that it be updated over and over and over again as you learn more
32:15
another way to look at it would be you know you could predict um you know rain or not rain uh a week
32:24
out right I um just went camping with my family this weekend and I was believe me
32:29
I was looking okay what's it going to be like what's it going to be like I was looking a week out but I knew as we got closer I was going to have better
32:35
predictions right I was we were going to learn more about you know what the weather patterns were and would have
32:40
been very silly of me to um you know ignore the the radar
32:46
um as we were you know driving into the mountains um that's new information that's
32:51
information that's that's crucial for planning so I think if you're going to
32:57
take one thing away from this uh it is that not only do we need good
33:02
forecasting models best that we can have but since no forecasting model will be perfect
33:07
in fact far far from it we need ways to um to update our models update our
33:15
forecasts and adjust as as we learn um what's happening
33:21
so Derek I wanted to before we take questions um I wanted to kind of get your
33:27
um your thoughts and input on what a you know a financial planner with you know
33:33
who's who's doing planning and retirement for clients like what the the takeaways would be for you and how it
33:39
affects your your processes now for me I mean it's really comes down
33:46
to you know which which model here do we want to use actually working with clients I think I lean heavily and I
33:53
like regime based Monte Carlo or historical um I I don't you know we've gotten into a lot of weeds here in terms of
34:00
technical details this is something I almost never discuss with clients like this isn't something I'm really talking
34:06
to them about but in terms of as a professional selecting from different methods what do I want to use
34:13
um I I think there are some just on a practical level I mean one thing I like about historical uh results is that you
34:20
are going to get more consistent between areas you update a plan things like that so that is one factor I consider and one
34:28
reason why I actually do kind of like historical I think historical if a client does ask you know what is this
34:34
based off of it's also easier to explain you know we're looking at actually you
34:40
know kind of what you could have spent going through historical markets you know I think that's a little bit easier
34:46
um just conceptually then especially regime based Monte Carlo which is a fairly
34:51
technical type of uh consideration but I think you know at the same time if you if certainly there's advantages to the
34:59
regime based Monte Carlo um you know I think the market we're in to can dictate some
35:05
of that like you know if you rewind the clock when you know interest rates hadn't risen stock valuations were
35:12
higher that was probably an environment where I was definitely even more inclined to use a regime based Monte
35:18
Carlo just given the environment we're in and kind of the unique risks I feel like you know that's maybe
35:24
now we've seen interest rates come up we've seen evaluation you know that we at least have a little bit of a dip
35:29
there right it's not as uh maybe doesn't feel like as unique of a
35:34
time as it did before but at the same time um you know they'll just finding that
35:42
most relevant sort of Market environment that we're in and projecting based on a short-term basis and then a
35:49
long term uh basis that conceptually that makes a lot of sense to me too so really to me it comes down to I want to
35:55
use one of those two methodologies personally when I'm actually running a plan but this is something I'm not I'm
36:03
just doing this internally as a as a professional I'm not actually communicating much of this to to clients
36:09
unless they really want to dive into those weeds I think that's a really good point this is like uh I don't know a doctor
36:16
choosing uh you know a blood test approach or a I don't know a um you know
36:22
choosing a medical device a replacement hip or something like that um there are you know this is where you
36:30
know kind of your expertise comes in to choosing the methodology uh occasionally it comes up it sounds like Derek I don't
36:36
know to what if you have a a guess of how often a client has sort of asked for
36:43
more on uh on where's this stuff coming from very rare I mean you know for me and
36:50
it's even a lot of times if I do get a question right because sometimes if you're presenting something and it feels
36:56
too kind of black boxy somebody's just you know where are these numbers coming from to me it's more like what are the
37:02
questions I get are more what are the return assumptions or you know how does this you know what what's driving this
37:07
certainly not down to the level of historical versus Monte Carlo versus regime based Monte Carlo like that's a
37:14
level of detail I don't think I've ever had a client push me to I'm sure there are some out there that would but um I just
37:21
personally haven't ever run into that yeah um
37:27
do you have um when when you're considering what to use sounds like you've used historical
37:32
and regime based um what it sounds like one consideration
37:37
there is you know in particular maybe uh when valuations were extremely high when
37:43
interest rates were extremely low you liked to use regime based Monte Carlo
37:49
um are well actually before I ask my question I wanted to bring up another example I saw some people last year
37:57
um who um were I talked with them about plans that they were doing that had um
38:05
that had a lot of pension income that wasn't adjusted for inflation
38:10
and so those plans were were really subject to inflation risk
38:15
and I uh what we discovered was there there really is something about regime-based Monte Carlo there where you
38:22
can really Express um a risk or Express an opinion in a way that you can't with historical so they
38:29
were able to say well let's really test this plan or produce a plan that assumes inflation will be high at least at the
38:35
beginning of the plan which was important for these plans in particular because if inflation was high and it
38:41
looked like it was going to be um that would that would really change how much someone could spend so that was
38:47
another place where so not well I guess it was a mix of the environment because we saw inflation coming up and the plan
38:54
itself seemed to to really have a weakness which was that inflation risk
38:59
and so they were able to say all right let's make sure we can handle inflation risk because we think we will see it
39:05
with regime base whereas historical analysis will include High inflation periods but it'll also include low inflation periods it'll include
39:11
deflation right so it's a really nice representation of what the world can be
39:16
like but it is not so focused on a particular risk or a particular plan
39:22
um so I agree with you there yeah I think that's a good point on that having the ability to maybe fine-tune
39:30
some of that we're with the historical record it is what it is versus being able to go in and actually Express
39:36
here's a concern for this particular plan it could be a little bit more precise or Surgical and kind of your
39:42
what you're trying to look at with regime based yeah yeah
39:47
um I know when we were doing this uh you also have some thoughts on this uh you
39:53
know web bias or overpredicting risk or under under promising over delivering
40:00
um how important do you think that is for people especially when you're doing
40:05
ongoing advice rather than just point in time advice yeah it's it's something I try to
40:11
balance because you know you don't want so much wet bias in the sense that you
40:16
know you're just you're telling somebody to spend way too little I do think there is you know a certain degree that's nice
40:22
to kind of have that positive uh you know they're more likely positive income
40:29
experience going forward so I do I do think a little bit of that is nice
40:35
um you know at the same time though you know there's multiple ways to get at that I mean you can introduce a little
40:40
web bias even by shading your your recommendation down a little bit or whatever that might be but if you want
40:46
to use the full power of you know income lab and kind of you know leveraging the
40:51
software to automate a lot of that that is something that I think is nice that you get with the the regime based Monte
40:57
Carlo I'm also comfortable with historical just kind of being in best
41:02
guess in a sense like I that doesn't cause me much concern
41:08
um it does I do find it concerning when you know we see particularly with the traditional Monte Carlo uh actually you
41:16
know having the dry bias that to me is a is a real concern because that's you know especially somebody who's not using
41:23
a risk-based guard rails type approach and that's particularly concerning when you're running a plan and targeting say
41:28
90 probability of success and maybe uh not realizing that underestimation of
41:35
risk is there but um you know for me that's something I really want to stay
41:40
away from so I think a little bit of uh web bias is good um also okay with kind of hitting the
41:47
hitting the mark but really do like to stay away from that dry bias
41:53
yeah that's a good point I both are bad um you know it's just harder to see the the cost of the wet bias is reduced
42:00
standard of living right um which is uh that is a that is a cost
42:05
it's a really important cost we tend to focus on the the scarier costs
42:10
um but um you're right trying to trying to hit it as close as possible um probably as a a good goal at least
42:18
um okay I think we've got a whole bunch of questions here so I don't know if uh that's right
42:26
um I've been keeping track of them so I've kind of broken them up into some categories here um but to first start off uh just a
42:33
reminder to our users um that at the end of the webinar we'll have that survey where you can give us
42:38
feedback and also put in your cfp number so that way we can get you the credit um but their congestion we had one great
42:45
feedback great presentation uh users are wondering if you guys are planning on writing an article on this topic and as
42:52
well as providing the slides uh afterwards yeah so I will drop the uh
43:01
the uh let's see here how do I do that can everybody see the chat I think
43:09
I can change it to everyone okay so here's a link to um
43:15
through the article on this that um that Derek and I um
43:20
posted on the kids's blog a little while back so you know very
43:26
similar similar content to here if you want to um dive in um I also see some
43:33
some folks asking for the slides happy to make a PDF of these so we can send it out
43:39
okay these uh first group of questions are around uh regime based uh Monte
43:44
Carlo um we had a few upvotes and maybe Derek you might be able to answer this um just wondering you know do the major planning
43:50
software companies provide means to model regime based like right Capital uh money guide Pro e-money
43:58
yeah I I haven't done a recent check on
44:03
the other software but last I knew I don't believe that's something that you can do
44:09
um in any of the major uh Monte Carlo platforms that are out there
44:14
gotcha gotcha great and then um next question here is uh just wondering why do you use two
44:21
sets of Capital Market assumptions in the regime based Monte Carlo method
44:29
yeah I mean the whole concept there is really when you look at you know how do
44:36
you what can what can we actually best predict with economic information I
44:41
think there's more evidence that that shorter term window right we can kind of take advantage of say a a 10-year period
44:47
but based on the current environment we're in to change our assumptions but then you don't want to use that
44:55
um that short-term window long term right because we know there's going to be some reversion back to kind of the
45:01
long-term average so that's the conceptual ideas basically take advantage of what we can say about the
45:07
current market we're in that's more going to be short-term longer term we're going to get back to more with that
45:13
long-term average would be yeah if you think about you know maybe
45:19
you had really low you know Bond return assumptions
45:24
there's a big difference between assuming those will be with you for five or ten years and something they'll be with you for 30 years especially if
45:31
you're heavily invested in bonds um so yeah that's the that's definitely a concept of having two different sets I
45:37
mean you could certainly uh imagine a world where you had even more but there's also kind of a practical
45:43
um aspect to this and you know how much is to be gained uh by by the extra work
45:49
if you had three four five uh achieves um and I think the other point which Derek just made is you know there are
45:54
Capital Market assumption forecasts out there uh um and those don't tend to be for 30 or 40
46:01
years they they tend to be for five or ten years um so really there is a mismatch between
46:07
putting those in for a plan you know to use on plans that are longer than that
46:14
um the way that it works in our software is you if you're using regime-based
46:19
Monte Carlo the first uh period of the plan will be covered by the first set we
46:24
call them near-term Capital Market assumptions by default that's 10 years but you can change it so if you had a plan that was 12 years it would be you
46:32
know most of it would be using the near term um if you had a plan that was 30 years most people were using the long term
46:40
just an interesting one do you guys know the inspiration behind the name regime based
46:46
I think I um my understanding is really it's just saying that there's multiple regimes
46:52
right periods that we're in of assumptions so regime based myocardial being you know two or more regimes
47:00
instead of just using one um one set of assumptions yeah I think it's it's sort of like
47:06
economic regimes or something like that is what the thought is there I don't actually know who coined it
47:11
um there there's been a fair amount of there's been sort of a popular tool in
47:17
the research world so I know kids this is written on it a bunch of times I think Wade fowl and um
47:24
uh there was a good article um years ago I'm trying to remember who co-authored that um also looked at this
47:30
kind of thing it just hasn't been available to advisors um until recently
47:38
and um speaking of that we have a few uh folks who aren't income lab users and they're just wondering you know are all
47:43
these methods available um to select within the software they are yeah so we even do have a
47:50
traditional Monte Carlo with one set of Capital Market assumptions um we actually use a 50-year average
47:55
instead of a 30-year but otherwise it's the same for our defaults but you can you can always edit on a market assumptions so yeah all of them are
48:01
available right and then um these next group are more about kind of communicating with
48:06
clients um so you know how would you recommend it be communicated to a client while using guard drills or dynamic
48:13
distribution strategy results in such significantly higher income level than using Monte Carlo
48:19
and if you have a few talking points here yeah for me I'd say one first question
48:25
that comes to mind is you know what what was the Monte Carlo plan itself
48:31
shooting for right because I I mean that could be part of the reason why you see different results depending on you know
48:37
if you're shooting for 99 probability of success right that's going to be part of what's what's driving that but I think
48:43
you know if you're looking for just really you know quick easy talking point there is something to the fact that you
48:50
can spend a little bit more with confidence if we know that the plan is to make adjustments when needed right
48:56
that's the how I would kind of distill that down because it does allow you to spend a little bit
49:02
more if you're willing to make an adjustment and this is you know really actually a good opportunity for a
49:07
broader conversation to look at something like the retirement stress test and take somebody through
49:13
historical periods you know show them what the downside was like and see if that's the right level of risk for them
49:20
because somebody might you know that's that's one thing you're not going to get with a traditional Monte Carlo simulation at all not not a projection
49:29
using traditional Monte Carlo I'm just saying like a traditional Monte Carlo software you're not going to be able to see what that income experience was like
49:35
because there's no assumed adjustment um you're just going to charge forward blindly but in this case you know seeing
49:42
okay if somebody actually followed that strategy is this a reasonable level of downside
49:47
risk and if somebody's willing to make those cuts back then that might be the right strategy or maybe you need to
49:54
fine-tune the strategy and dial in the risk level of the guardrails to make sure that matches better
50:02
yeah I think um that yeah there was another point about
50:07
you know we were saying well adjusting is important because we know that there will be errors but adjusting is also
50:13
important because it allows um clients to you know if it's if it's
50:18
appropriate for their kind of temperament right they can accept a higher chance of having to pull back
50:25
um in exchange for spending more so you know this is the income lab software um this you know this spending level for
50:32
this particular plan which has all sorts of stuff in it uh Social Security uh
50:38
portfolio all sorts of things and that's what's producing this over twenty thousand dollars and monthly uh income
50:44
but really there's a range you could you could go more conservative
50:50
um spend less today and have a larger gap before you'd have to adjust or you
50:56
could say no I wanna I wanna spend a lot more but I have a smaller gap before I would have to adjust so yeah that is
51:02
another another real positive of of planning with adjustments not only does
51:07
it mean you know as you learn things over time you can kind of make up for your errors right like maybe you didn't think it was going to rain but then you
51:13
know dark clouds appear on the horizon well okay we're going to adjust a little bit but also it allows people to kind of
51:19
match their spending to their to their temperament to their wrist tolerance
51:25
and maybe just this kind of a touching on on that point a little bit but um one
51:31
of our users was curious as to you know is there a general ballpark range of how much higher spending can be in
51:36
retirement using a dynamic strategy versus um a static strategy
51:42
10 20 higher um for example in this do you know if there's any formal or informal research done in that area that
51:49
maybe an advisor can kind of uh get pointed to
51:55
I think it would depend on how much the plan depends on portfolio withdrawals um there is using the smile which this
52:02
example plan I'm showing um does we know that that tends to add
52:08
for someone in their 60s that adds probably 15 to 20 percent um spending capacity basically because
52:14
you're letting them spend you're kind of stealing from the latent plan and putting it earlier right we're just kind
52:19
of shoving it toward the the younger years um so that's I think pretty well established that the smile does that now
52:24
that's not Dynamic adjustment based planning that's just using the smile but that's
52:30
definitely um a factor that people do enjoy I don't know Derek do you have thoughts on that
52:35
I mean once you know you can adjust does it provide more spending capacity I think this is a situation where the
52:43
the unique client circumstances are going to Trump any sort of generalized
52:48
statement you can make because you know depending on how much guaranteed income somebody has versus portfolio income
52:55
um that's going to be a factor of what risk level they're using on their guard rails is going to be a factor so for me
53:01
I you know rather than you know gut feeling says that you know maybe those
53:07
aren't you know maybe 10 is not a terrible level that you might just expect to see but at the same time I
53:13
don't even really give that much thought I'd rather build out the plan and see for that particular client you know what what do we see
53:20
because you know there can be spending um like Justin's talking about in terms of spending smile but it could also just
53:26
be somebody's goals maybe they have large goals at certain times that have unique circumstances for their plans so
53:32
I would really rather build that out and see what we get from there yeah Mike Amore into play if somebody is
53:39
you know if their plan is more of a reach right if somebody has lots of resources and they spend frugally
53:45
you know I'm not even sure it comes into play whereas if somebody is saying I really want to retire
53:52
um this is how much I need um you could have a conversation with them that says well in order to do that
53:57
we got we're gonna have to take on a little bit more risk that you are going to have to you know pull back from that
54:03
point so just Eyes Wide Open yes we can do it but understand you've there's a
54:09
decent chance I'm gonna call you and tell you it's time to tighten the belt so maybe in that situation it could give
54:14
people some permission to to try it out uh to try out retiring I could see that
54:19
coming into play um and real quick our tax rates modeled
54:25
into Monte Carlos uh they
54:31
yeah they typically are I mean there's ways to do it with or without um but yes
54:37
I mean it the reason that kind of waffle a bit is because um let's take an IRA for example the
54:45
withdrawals you can take the risk of a withdrawal rate from an IRA does not depend on your tax rate right like your
54:53
IRA doesn't care what your tax rate is um what it will sustain in withdrawals does not care what your tax rate is so if taxes go down you'll be able to spend
54:59
more of it but you won't be able to take more of it um at the same risk level so it the
55:04
interplay of taxes and risk in retirement is unfortunately not like just perfectly easy and clear
55:12
and just just to jump in there if the question there was getting at more just like does income lab take taxes into
55:18
consideration absolutely that's that's there so um that uh is something to be accounted
55:24
for we do have quite a few questions just want to point out uh most of those
55:30
things it looks like they're about getting the slides as Justin mentioned we'll get you guys the slides um PDF form and a follow-up and I think you did
55:37
drop the link in here as well um but maybe maybe this last one while we have two minutes
55:42
um just some questions on you know is income lab only designed for the distribution phase of retirement I know
55:47
we get that question a lot maybe there Justin you guys can maybe use our last few minutes to kind of help our new
55:53
folks maybe understand that piece I'll jump in with my my take on that
55:59
question I guess in my opinion um certainly there's you know a lot of really practical application for
56:05
somebody's who's inner approaching that distribution phase of retirement um there are ways that I still use it
56:11
with accumulators so if somebody wants some sort of projection kind of what income trajectory they might be on can I
56:18
I don't you know running projections for somebody in their 30s there's so many assumptions there that it's almost not that useful in in my opinion but
56:25
somebody wants some of that I do think it's still better than running a Monte Carlo simulation for somebody early on
56:31
um but then particularly getting into life Hub that's an area where I could have a lot of different things that I'm
56:37
doing with somebody who's more of an accumulator um and farther off from retirement just in terms of
56:43
touching in making sure or making sure we're covering everything's up to date I have that all information have that all
56:50
captured but then also some of the projection capabilities and saying you know you're on track to pay off your mortgage at this time or here's the date
56:57
uh here's where you're you know it kind of project some account balances out things like that I do think are very
57:02
useful for somebody outside of a traditional retiree yeah I would Echo that I would say this
57:09
the actual you know what can you spend and what would make that change and what would the change look like
57:15
that is typically more useful close close to at and in retirement I think of
57:20
it as a GPS so like when would you find you know starting up Google Maps or ways
57:27
to be useful when you're going on a trip it's not necessarily just as soon as you get in the car it might be hours before
57:34
right but but it's probably not months before Perfect all right guys thank you we are
57:41
up on our time to all of our users thank you again for joining today as I mentioned again please fill out the
57:47
survey we look forward to hearing your feedback and making sure you get your cfp credit um for the folks we didn't get to your
57:53
questions feel free to reach out to us in the survey too you can uh request a one-on-one meeting and that's a great
57:59
time to get to know the software have any questions answered and see a demo as well
58:04
um and then please be on the Lookouts for our next webinar uh next month that we will be sending out the invite to
58:10
that as well Justin and Derek as always thank you guys for the time and effort you put into these webinars you'll see
58:16
in the comments that we had a lot of uh folks just saying a really great presentation and sharing a lot of good
58:21
feedback so I want to make sure you sought those as well coming in all right well thank you everyone we will send the
58:27
email out tomorrow with the reporting uh so you will see that uh in your inboxes tomorrow have a wonderful day and take care
58:34
everybody thanks everyone
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