ptheland wrote: I'd also like to see numbers for a longer accumulation period. If you start work at 23 and retire at 63, that's a 40 year accumulation period, not 30. My hypothesis is that those additional 10 years would make a noticeable difference in the required accumulation rate.The Retire Early Home page that is linked to in the OP's post is a very abreviated synopsis of Dr. Pfau's full academic article which can be found here: http://www.fpanet.org/journal/CurrentIssue/TableofContents/S...Wade Pfau has a great chart for various scenarios including 20,30, and 40 year accumilation phases and compares these sccumilation phases with differing lengths of retirment; again 20, 30, and 40 years. Your hypothisis agrees with Dr. Pfau's research. A safe-minimum historical savings rate for a 40 year accumilation period and a 30 year retirment is between 7.39% and 12.42% depending on you asset allocation. Hawkwin wrote: Something about his math just isn't working for me. To paraphrase, he solved for 50% income replacement and found that it would take at least 10.+% but I did not see that he accounted for SS.I've had the pleasure of engaging Dr. Pfau on another forum a while back where he answered questions/concerns about his work. he was quite clear that the 50% income replacement was a benchmark for those expecting to have their retirment income supplimented through SS and/or pensions. If you read the full academic article in the link posted above you will see that he also does the same calculations for those that want to find a safe-minimum savings rate to provide themselves a 75% income replacement at retirement. For those of us who do not wish to count on other institutions for our livlihood in our twilight years.
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