We check the robustness of Feldstein's finding that Social Security reduces
private saving to two specifications not considered before in the literatu
re: (1) constraining the coefficients on Social Security and household net
worth to be equal; and (2) allowing the effect of wealth on consumption to
be nonlinear or a function of the age distribution of the population. We re
ject Feldstein's implicit assumption of linear but unequal effects of wealt
h on consumption, finding instead that the effects of both forms of wealth
on consumption have risen over the postwar era. Only in recent years has th
e estimated effect of Social Security wealth on consumption for some of the
se specifications been close to Feldstein's estimate of 2.9 cents per dolla
r of wealth.