Random Walker wrote:...the fact that we are living longer than ever
No, it doesn't. That's a rationalization. People keep repeating it because it sounds plausible, but the numbers don't support it.bicker wrote:It also has to do with time horizons increasing (i.e., people generally living longer).


You do realize, I hope, that you contradicted yourself, implying that the increase has nothing to do with people living longer and then admitting at least as much as it would explain "a couple of percent".nisiprius wrote:Random Walker wrote:...the fact that we are living longer than everNo, it doesn't. That's a rationalization. People keep repeating it because it sounds good, but the numbers don't support it. Life expectancy at age 65 has been increasing, yes, but only by about one year per decade, and would, at the most, justify an increase in recommended stock allocation of a couple of percent higher than twenty years ago--not the 15-20% that has actually occurred. Longevity is not the explanation for the increase.bicker wrote:It also has to do with time horizons increasing (i.e., people generally living longer).
WendyW wrote:This old allocation seems to have gone the way of the dodo...Equities = 100 - age
I could engage in some self-protective rhetoric, but instead I'll just say "you're right."bicker wrote:You do realize, I hope, that you contradicted yourself, implying that the increase has nothing to do with people living longer and then admitting at least as much as it would explain "a couple of percent".nisiprius wrote:No, it doesn't. That's a rationalization. People keep repeating it because it sounds good, but the numbers don't support it. Life expectancy at age 65 has been increasing, yes, but only by about one year per decade, and would, at the most, justify an increase in recommended stock allocation of a couple of percent higher than twenty years ago--not the 15-20% that has actually occurred. Longevity is not the explanation for the increase.bicker wrote:It also has to do with time horizons increasing (i.e., people generally living longer).
OK, show me how you calculate the appropriate change in stock allocation for an additional 2-year life expectancy at age 65. I'll bet you've never done it yourself, and I'll bet you can't find me a print source in which anyone has.Beyond that, you seem to imply that that 4% increase would necessarily map to only a 4% change in the asset allocation split. Why? There are so many factors that go into moving the depletion curves for retirement savings out 4% that saying that a 4% change in the asset allocation split would account for it doesn't make sense to me. Perhaps I'm missing something important.

The point I made is that you cannot do it simply. You'd have to ask the experts who are putting the recommendations how each of them arrived at those numbers, but it seems most likely to me that they didn't arrive at them by applying a modifier to the old asset allocation breakdowns but rather worked out the new asset allocation breakdown from scratch, assessing all the aspects of the financial environment that will have impact.nisiprius wrote:OK, show me how you calculate the appropriate change in stock allocation for an additional 2-year life expectancy at age 65.
What makes you think that the old asset allocation breakdown recommendations were any different? What makes you think that the old asset allocation breakdown recommendations were biased sufficiently toward equities to start with?nisiprius wrote:I think it's just fashion and trendiness.
You've gone back to rhetorical corruption-to-absolutism.nisiprius wrote:I don't think the small increase in longevity explains higher stock allocations any more than it explains the increased popularity of body piercing.
stemikger wrote:Has anyone noticed that many of the professionals are recommending higher asset allocation models for long term investors than they did 5 years ago? ......
The only person who hasn’t flipped flopped on this is Mr. Bogle.
Is this because bonds are paying practically nothing right now? Or that they foresee the market has changed going forward and you need to take more equity risk to get the returns of yesterday with less risk.
stemikger wrote:Has anyone noticed that many of the professionals are recommending higher asset allocation models for long term investors than they did 5 years ago? When I came here I was around 45 and I had 70% in equities and 30% in bonds and many told me I was too aggressive. I slowly lowered my AA and I have been at 60/40 since.
I am reading the book The Elements of Investing by Malkiel and Ellis and for someone in their 40s and 50s their low end is 65/35 for Malkiel and Ellis is even higher at 85/15 for someone in their 40s. I also noticed this in Money magazine and on the radio other gurus seem to be recommending higher AA.
The only person who hasn’t flipped flopped on this is Mr. Bogle.
Is this because bonds are paying practically nothing right now? Or that they foresee the market has changed going forward and you need to take more equity risk to get the returns of yesterday with less risk.
New Trend
I fancy that in 2006 some Vanguard people met in a conference room and said "We'd better up the stock allocations in the target funds, everyone else is doing it and we're out of step."
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