We test whether individuals in the Health and Retirement Study who consented to have administrative earnings data matched to survey responses represent a non-random sample. For both men and women, there is a general pattern of negative selection across three measures of pre-entry labor-market...

Absences in Chicago Public High Schools are 3-7 days per year higher in first period than at other times of the day. This study exploits this empirical regularity and the essentially random variation between students in the ordering of classes over the day to measure how the returns to classroom...

In 2009, the Federal Reserve Board implemented a survey of families that participated in the 2007 Survey of Consumer Finances (SCF) to gain detailed information on the effects of the recent recession on all types of households. Using data from the 2007-09 SCF panel, we highlight the variation in...