Average and expected job tenure of workers has fallen significantly over the last two decades. Workers have also experienced a major shift in pension coverage. Traditional defined benefit pensions, designed to reward long tenure, have become steadily less common, while defined contribution...

Current and expected job tenure have fallen significantly over the last two decades. Over the same period, traditional defined benefit pensions, designed to reward long tenure, have become steadily less common. This paper uses a contract-theoretic matching model with moral hazard to explain...

Workers are switching jobs more often than in the past. Among the reasons are changes in technology, changes in demographics and changes in such institutions as unions and international trade.

The Social Security earnings test reduces benefits at a 33-50% rate once earnings pass a threshold amount - among the highest marginal tax rates in the economy. Previous research dismissed the importance of the earnings test but failed to take advantage of three changes in the earnings test...

New technologies like computers alter skill requirements. This paper explores two related effects of computers on older workers, who use computers less. The evolution of computer use in the Current Population Survey suggests that impending retirement reduces the incentive of older workers to...

Researchers have devoted considerable attention to analyzing the impact of Social Security on retirement, with mixed findings. However, Old Age Assistance (OAA), a means-tested program established at the same time, dwarfed Social Security until the 1950s and coincided with the early decline in...