This paper examines the efficiency gains from linking marginal Social Security benefits to marginal Social Security … effective marginal federal government taxation of labor supply would average roughly 38 percent. Since the efficiency costs of … dead weight loss of labor income taxation.The findings of this paper suggest that there may be very significant efficiency …

, privatization reduces efficiency by about $5,600 per future household despite improved labor supply incentives … matching actually harms efficiency. However, increasing the progressivity of the remaining traditional system is very effective … at restoring risk sharing, thereby allowing partial privatization to produce efficiency gains of $2,700 per future …