Is Tomorrow Another Day? The Labor Supply of New York City Cabdrivers
分析纽约市出租车司机的收工行为，发现每日收入效应很小，收工时间主要取决于当天累计工时，与先前研究认为每日工资弹性为负的结论不同。
The labor supply of taxi drivers is consistent with the existence of intertemporal substitution. My analysis of the stopping behavior of New York City cabdrivers shows that daily income effects are small and that the decision to stop work at a particular point on a given day is primarily related to cumulative daily hours to that point. This is in contrast to the analysis of Camerer et al., who find that the daily wage elasticity of labor supply of New York City cabdrivers is substantially negative, implying large daily income effects. This difference in findings is due to important differences in empirical methods and to problems with the conception and measurement of the daily wage rate used by Camerer et al.