The traditional bundling of health insurance with employment in the United States may distort workers’ labor market choices by encouraging full-time wage and salary employment relative to part-time work, self-employment, and not working. However, disentangling the effects of employer-provided health insurance on labor market outcomes is a challenging empirical issue. To overcome this issue, the author conducts three studies which exploit three sources of variation in individual valuation of employer-provided group health care.