The Social Security Payroll Tax and the Life-Cycle Work Pattern
通过生命周期模型分析社会保障工资税与最高应税收入组合如何改变最优工作时间路径，并利用时间序列数据检验其对年轻男性市场工作的影响，发现该组合显著影响壮年男性的工作时长。
The distortion of the labor-leisure choice by the Social Security payroll tax is well known. This paper uses a life-cycle model of labor-force effort to show that the combination of the Social Security payroll tax and a maximum taxable income alters the optimum time path of work. We analyze a time-series data set to test the empirical importance of this combination on the market work of younger men. We find that it has a measurable effect on the hours worked by prime-aged men. That is, the individual works a greater number of hours when he can more easily earn an income that is higher than the payroll taxing maximum.