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SWR failures from history
07-17-2020, 09:57 AM
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#1
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Thinks s/he gets paid by the post
Join Date: Aug 2015
Posts: 1,890
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SWR failures from history
I found the below chart fascinating. Over on bogleheads, they are convinced 3% is the new 4% SWR and then data like this pops up.
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07-17-2020, 10:39 AM
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#2
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Moderator Emeritus
Join Date: Apr 2011
Location: Conroe, Texas
Posts: 18,645
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So how reliable is data going back to 1871?
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07-17-2020, 10:50 AM
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#3
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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Location: Northern IL
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Gonna need some context here. I can see it was kitces site, but it's just an image file, where's the text to explain it?
Is it inflation adjusted withdrawals? Some sort of adjusted w/d method? What portfolio length?
They say a picture is worth 1,000 words, but a graph w/o context, not so much.
-ERD50
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07-17-2020, 10:53 AM
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#4
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Location: Northern Virginia
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Good point. I think some folks fail to understand how conservative a 4% rate has been, historically.
Lower is always better and "safer" but diminishing returns arrive pretty rapidly.
A related topic is people who compute a conservative SWR, and then treat sequence of return risk as a separate issue not contemplated by the research.
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07-17-2020, 10:57 AM
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#5
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Thinks s/he gets paid by the post
Join Date: Aug 2015
Posts: 1,890
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Consistently sets low goals and fails to achieve them.
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07-17-2020, 11:00 AM
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#6
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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Looking at the graph OP posted, I recall years ago, FireCalc output included a bar chart which had ending values on the Y axis and starting years on the X axis. I found it very useful. Anyone else remember this?
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07-17-2020, 11:30 AM
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#7
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Recycles dryer sheets
Join Date: Feb 2014
Posts: 215
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Does this say to you that no one below 5% SWR failed?
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07-17-2020, 11:33 AM
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#8
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Quote:
Originally Posted by Ginny
Does this say to you that no one below 5% SWR failed?
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I think what it says to me is that 4% is a good floor for planning purposes only. Helps me deal with all the rhetoric that 3% is the new 4%.
My actual decision to retire and my withdrawal strategy has little to do with the 4% rule. It's just another rule of thumb to compare to. I like Firecalc and The Flexible Retirement Planner better. And I really like my spreadsheet.
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Consistently sets low goals and fails to achieve them.
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07-17-2020, 11:36 AM
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#9
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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4%WR has only technically failed at a 60/40AA over 30 years in 1966 start year and that's with including theoretical taxes and fees I believe. Otherwise it passed.
There are continuing articles about how the 4% guidance will not work currently, but even the 2000 retiree with 2 bear markets is still in decent shape.
IIRC, the typical WR which would work over 30 years, if one removes the 5 or 6 worst starting years is 6.5%
Thus the 4% guidance is still considered fairly conservative.
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TGIM
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07-17-2020, 11:40 AM
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#10
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Thinks s/he gets paid by the post
Join Date: Aug 2015
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Here's another article from Fidelity with more recent data:
https://www.fidelity.com/viewpoints/...l-savings-last
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Consistently sets low goals and fails to achieve them.
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07-17-2020, 11:47 AM
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#11
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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30 and 28 retirement periods fall short for some of us ER folks.
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07-17-2020, 11:52 AM
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#12
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gone traveling
Join Date: Jul 2020
Posts: 100
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I tend to agree with this article. Look at at graph in it that shows all years.
We are now economically/politicly in the middle of 1930s-1940s. SWR is 2%-3% (less if you are under 60)
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07-17-2020, 11:52 AM
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#13
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Thinks s/he gets paid by the post
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Quote:
Originally Posted by RunningBum
30 and 28 retirement periods fall short for some of us ER folks.
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I agree with that. If you are planning for longer than 30 years, I would definitely go for a lower WR. But I don't think we need to panic and come off 4% for a 30 year plan.
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Consistently sets low goals and fails to achieve them.
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07-17-2020, 11:58 AM
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#14
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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It's a bit moot for many folks, since travel expenses are nearly zero for the rest of the year, and possibly next year.
While I consider 4% fairly safe, I can imagine someone at the end of 1965 thinking the same thing.
Ending up being surprised at all the flavors of cat food available during the end of their retirement.
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07-17-2020, 12:28 PM
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#15
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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There's one other aspect to failure with a 4% WR. Someone can say, I project a need for $40K (on top of SS), I have $1M, so I'm safe, right? While it's true that history says that market returns and inflation rates make this plan safe (assuming the future isn't worse than ever this time), it doesn't cover someone underestimating their expenses. A combination of running over budget with bad sequence of returns or runaway inflation can sink a 4% plan.
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07-17-2020, 12:33 PM
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#16
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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Quote:
Originally Posted by Dtail
Thus the 4% guidance is still considered fairly conservative.
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One of the things seldom mentioned in these discussions is that historical outcomes are all based on holding a specific AA with rebalancing. I think, in reality, few folks actually do this. For example, currently many folks are posting changes to their AA due to current economic conditions. Once you do that, you can be assured your back-testing no longer holds. You may have improved things. You may have made things worse. But you absolutely changed the parameters on which the back-testing was done.
Another issue would be the composition of the fixed portion of our AA. I check the 5 year treasury box in FireCalc. But, I don't a single 5 year treasury! I own a mix of funds, TIPS, CD's, MM's, etc.
If it turns out that if whatever you hold in your FIRE portfolio performs differently than what you said you had when setting up FireCalc (or any other tool based on history), then your results are inaccurate. You might turn out better. You might turn out worse. But it will be different.
Just other reasons to be conservative.
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07-17-2020, 12:42 PM
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#17
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Quote:
Originally Posted by youbet
One of the things seldom mentioned in these discussions is that historical outcomes are all based on holding a specific AA with rebalancing. I think, in reality, few folks actually do this. For example, currently many folks are posting changes to their AA due to current economic conditions. Once you do that, you can be assured your back-testing no longer holds. You may have improved things. You may have made things worse. But you absolutely changed the parameters on which the back-testing was done.
Another issue would be the composition of the fixed portion of our AA. I check the 5 year treasury box in FireCalc. But, I don't any a single 5 year treasury! I own a mix of funds, TIPS, CD's, MM's, etc.
If it turns out that whatever you hold in your FIRE portfolio performs differently than what you said you had when setting up FireCalc (or any other tool based on history), then your results are inaccurate. You might turn out better. You might turn out worse. But it will be different.
Just other reasons to be conservative.
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True. Reducing equity exposure could take you outside the test set. Hopefully people doing that have won the game and have lower withdrawal rates, but I am sure this is not true in all cases.
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07-17-2020, 12:45 PM
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#18
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gone traveling
Join Date: Jul 2020
Posts: 100
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Quote:
Originally Posted by youbet
One of the things seldom mentioned in these discussions is that historical outcomes are all based on holding a specific AA with rebalancing. I think, in reality, few folks actually do this. For example, currently many folks are posting changes to their AA due to current economic conditions. Once you do that, you can be assured your back-testing no longer holds. You may have improved things. You may have made things worse. But you absolutely changed the parameters on which the back-testing was done.
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That is market timing Even though someone doing it might not think so.
It pretty much never leads to better returns.
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07-17-2020, 12:46 PM
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#19
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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Quote:
Originally Posted by youbet
One of the things seldom mentioned in these discussions is that historical outcomes are all based on holding a specific AA with rebalancing. I think in reality, few folks actually do this. For example, currently many folks are posting changes to their AA due to current economic conditions. Once you do that, you can be assured your back-testing no longer holds.
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Exactly. To me an SWR number is like a ruler; useful for measuring things. But I think virtually everyone's withdrawal rate varies during retirement. Some things, like travel, charitable donations, restaurant dining, special wines, etc. are highly discretionary. Other things, like inflation, investment returns, the effect of COVID-19, real estate taxes, insurance, nursing home, etc. are almost completely uncontrollable. Life cannot described accurately by a calculator, so there is not much point in getting excited about a particular number. When life is good we bask in the sun. When the storms come we trim our sails and go belowdecks until things settle down.
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07-17-2020, 01:20 PM
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#20
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jan 2008
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Quote:
Originally Posted by OldShooter
Exactly. To me an SWR number is like a ruler; useful for measuring things. But I think virtually everyone's withdrawal rate varies during retirement. Some things, like travel, charitable donations, restaurant dining, special wines, etc. are highly discretionary. Other things, like inflation, investment returns, the effect of COVID-19, real estate taxes, insurance, nursing home, etc. are almost completely uncontrollable. Life cannot described accurately by a calculator, so there is not much point in getting excited about a particular number. When life is good we bask in the sun. When the storms come we trim our sails and go belowdecks until things settle down.
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It's supposed to. SWR was never meant as anything but an axe to plan with, it's not a scalpel - and it does NOT predict the future, just as FIRECALC doesn't. SWR is obviously rear view mirror, all the original academic papers specifically said same, and many authors have had to repeat same over and over and over for some reason. I would think it would be wise to re-assess every 5 years or so, but not annually.
Quote:
Taken literally, such a plan has been criticized as unrealistic. Even if the tests showed that the plan had a 98% success rate over all past time periods, would a prudent person blindly go on steadily increasing withdrawals in a prolonged bear market? It also leads to apparent absurdities. Say that retirees A and B have saved $1 million in 2008, and the market crash reduces their portfolios to $800,000 in 2009. A, however, retires in 2008 while B waits until 2009. The Trinity study bases withdrawals the dollar value of the portfolio at the start of retirement. The value fluctuates with the vagaries of the stock market. Thus, even though their situations are almost identical, in the Trinity scenario, retiree A, by virtue of having retired in 2008, is allowed to withdraw $40,000 plus COLA in 2009; while retiree B, despite being in an almost identical situation, would be allowed only $32,000.
The authors of the paper, however, did not mean for their scenarios to be applied rigidly or uncritically. The article makes this very important statement: The word planning is emphasized because of the great uncertainties in the stock and bond markets. Mid-course corrections likely will be required, with the actual dollar amounts withdrawn adjusted downward or upward relative to the plan. The investor needs to keep in mind that selection of a withdrawal rate is not a matter of contract but rather a matter of planning.
Nisiprius requested clarification from Professor Philip L. Cooley, senior author of the Trinity study:[3]What the "4% SWR" means is not that you can treat a portfolio as if it were a guaranteed annuity. I think all the [Trinity] authors meant is that if it is late 2008 and your stocks halve in value, you don't need to halve your spending instantly. It's OK to cross your fingers and continue spending according to the 4%-then-COLAed plan, even though it means dipping into capital, and it's OK to go on doing that for a while.
Professor Cooley's response:You have hit the nail on the head! I've tried to explain that thought to journalists but they don't seem to get it. You've got it. Stay flexible my friend!, which is the advice we should give to retirees.[4]
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https://www.bogleheads.org/wiki/Safe_withdrawal_rates
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Retired Jun 2011 at age 57
Target AA: 50% equity funds / 45% bonds / 5% cash
Target WR: Approx 1.5% Approx 20% SI (secure income, SS only)
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