I shake my head at so many of the responses that indicate people are looking for a "just give me a number" type of answer. Come on! The future is unknown. There is no SAFE withdrawal rate.
* It's calculation assumes a 'die broke' scenario. But few of us will have family to provide the extra labour of medical support at the end of our life. We will need a reserve of capital. (Oh right, you conveniently assume the other taxpayers will cover that.)
* 'Safe' means 0% probability. See the Table 3. There is no scenario that gives 0% probability of running out in 30 years, much less the 45 years I will need. And look at the average growth in Table 5. Looking for 'safe' mean the average result is an increase in asset value only equal to 2 times, but accepting risk allows the average growth to be 8 times.
* To claim that data from "set of data that the Yale professor Robert Shiller ..." "was predictive enough to produce guidelines" ignores the same error that is implicit in stock-screening - DATA SNOOPING:
If you want a 'safe' withdrawal buy an annuity. Otherwise be prepared to cut back your expenses in recessions and wait to splurge after good markets, and reinvest the portion of income equal to the degredation of inflation.
* It's calculation assumes a 'die broke' scenario. But few of us will have family to provide the extra labour of medical support at the end of our life. We will need a reserve of capital. (Oh right, you conveniently assume the other taxpayers will cover that.)
* 'Safe' means 0% probability. See the Table 3. There is no scenario that gives 0% probability of running out in 30 years, much less the 45 years I will need. And look at the average growth in Table 5. Looking for 'safe' mean the average result is an increase in asset value only equal to 2 times, but accepting risk allows the average growth to be 8 times.
* To claim that data from "set of data that the Yale professor Robert Shiller ..." "was predictive enough to produce guidelines" ignores the same error that is implicit in stock-screening - DATA SNOOPING:
The biggest problem with this strategy lies in its basic premise, that back-testing proves something. Academics have given this issue the name 'data-snooping'. Given enough time, enough attempts, and enough imagination, almost any pattern can be teased out of any dataset. And there have been decades and decades of dredging done on the historical stock exchange database. Proponents of the efficient markets hypothesis argue that many of the predictable patterns that have been identified in financial markets may be due to simple chance (Reality Check by Park and Irwin 2009). The relationships simply do not exist outside of the specific data set analysed (e.g. in the future).
If you want a 'safe' withdrawal buy an annuity. Otherwise be prepared to cut back your expenses in recessions and wait to splurge after good markets, and reinvest the portion of income equal to the degredation of inflation.