Every year 1.3 million U.S. high school students drop out of school with one quarter of female students failing to graduate on time. Female dropouts are more likely to be unemployed, to earn less when they are employed, to become pregnant before the age of 20, to become obese, to smoke, and to drink more heavily than their male counterparts. This…

The impact of date of birth on cognitive test scores is well documented across many countries, with the youngest children in each academic year performing more poorly, on average, than the older members of their cohort (see, for example, Bedard and Dhuey (2006) or Puhani and Weber (2005)1). However, relatively little is known about the driving…