The Effects of Employer-Provided Health Insurance on Worker Mobility
利用1984年SIPP数据，研究雇主提供的健康保险是否减少工人流动性（即工作锁定效应），发现女性存在较强的工作锁定，而男性仅微弱证据。
The authors use data from the 1984 Survey of Income and Program Participation (SIPP) to investigate whether employer-provided health insurance reduced worker mobility (a phenomenon termed job-lock). The SIPP provides information on variables--particularly pension receipt, job tenure, and spouse job change--that were omitted from previous surveys and are, the authors argue, key to the estimation of well-defined mobility models. For dual-earner married men and women, the authors estimate a model that accounts for the interaction between husbands' and wives' job change decisions. For both married and single individuals, the results provide fairly strong evidence of job-lock among women, but only weak indications of job-lock among men. The authors speculate that this finding reflects higher health care use by women than by men.