The Return to Hours Worked within and across Occupations: Implications for the Gender Wage Gap
研究发现，虽然职业内工作时间回报很小，但职业间平均工作时间回报很大，性别工作时间差异可解释相当部分的性别工资差距，且过去四十年工作时间回报上升减缓了性别工资差距的缩小。
Prior research suggests that gender differences in hours worked play an important role in the gender pay gap. Yet common estimates of the wage returns to hours worked are close to zero, implying that hours differences explain little of the gender wage gap, even though men work more hours than women on average. However, while the wage returns to hours worked within occupations are small, the authors document that the wage returns to average hours worked across occupations are large. They develop a conceptual framework that reconciles these facts. Findings show that, under some assumptions, gender differences in hours worked can account for a substantial portion of the gender wage gap and that increases in the returns to hours worked over the past four decades slowed progress in reducing the gender pay gap.