I study how New York City taxicab drivers change their work hours in response to a permanent wage change. Exploiting the effective wage increase induced by a regulatory change in fares, I estimate the long-run elasticity of labor supply to be -0.5. I show that the data limitations may have biased the estimates in a previous study that also use data for New York City taxicab drivers. Since the drivers are almost exclusively males, the estimate likely represents male labor supply elasticity. The negative elasticity is consistent with rising wages and declining work hours per worker observed over many decades, and is useful evidence for policymakers to improve tax/ transfer systems.

我研究了纽约市出租车司机如何改变他们的工作时间以响应永久性工资变化。利用票价监管变化引起的有效工资增长，我估计劳动力供应的长期弹性为 -0.5。我表明，数据限制可能使先前研究中的估计有偏差，该研究也使用纽约市出租车司机的数据。由于司机几乎完全是男性，估计可能代表男性劳动力供应弹性。负弹性与数十年来观察到的每名工人工资上涨和工作时间减少相一致，是政策制定者改善税收/转移制度的有用证据。