The author analyzes data on 6,416 persons in 109 firms to determine whether the length of these workers' tenure was positively related either to wage tilt-the payment of below-market wages in the early years of the worker's employment with a firm and above-market wages in the later years-or to...

This study investigates why, after 15 years of virtual stability, U.S. labor force participation rates for men aged 55 to 64 fell by approximately 20% from 1970 through 1986. The author's analysis of rule changes in the social security system and pension plans suggests that part of this...