Anonymous wrote:A Fed friend told me that she felt that the pension we get is sort of like the G fund -- will be there, a constant number, so that her TSP could all be in non G fund allocations. Interesting point. I'm 50 and won't be touching TSP until at least 59 1/2 (hopefully later than that). I am allocated about 35% in G/F funds, and the rest spread out over S/I/C and a little 2030 lifecycle.
On the boglehead forum there is a lot of discussion about that. Some people think that makes sense, but I tend to agree with the people who say that social security or a pension just lowers the amount you'll need from your other investments which might, or might not, in turn affect your asset allocation for those investments (but that's different from treating social security or a pension as part of your asset allocation while investing).