Employer Size and Labor Turnover: The Role of Pensions
研究1973-93年数据发现，养老金覆盖对大企业员工流动的抑制作用比小企业更强，控制员工特征后企业规模与流动率几乎无关。
The well-documented lower labor turnover in large firms than in smaller firms has been cited as evidence that large firms pay workers above their opportunity wage. This study examines whether the relationship between firm size and turnover can instead be accounted for by size-related differences in the availability, portability, or generosity of pension plans. Analyzing extensive data for the years 1973-93, the authors find that pension coverage is associated with a greater reduction in worker turnover in large firms than in small firms. They also find that when appropriate controls for worker characteristics are employed, there is virtually no association between firm size and labor turnover.