PT - JOURNAL ARTICLE AU - Garry F. Barrett AU - Daniel S. Hamermesh TI - Labor Supply Elasticities AID - 10.3368/jhr.54.1.1216.8407R1 DP - 2019 Jan 01 TA - Journal of Human Resources PG - 255--265 VI - 54 IP - 1 4099 - http://jhr.uwpress.org/content/54/1/255.short 4100 - http://jhr.uwpress.org/content/54/1/255.full SO - J Hum Resour2019 Jan 01; 54 AB - We measure the impact of measurement error in labor supply elasticities estimated over recalled usual work hours, as is ubiquitous in the literature. We employ data on hours of work in diaries collected by the American Time Use Survey, 2003–2015, along with the same respondents’ recalled usual work hours. Estimates using the latter yield elasticities that are positively biased. We argue that this bias arises from the salient effects of differences in wage rates on recalled hours.