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Gender Performance Gaps: Quasi‐Experimental Evidence On The Role Of Gender Differences In Sleep Cycles

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Economic Inquiry

Published online on

Abstract

Sleep studies suggest that girls go to sleep earlier, are more active in the morning, and cope with sleep deprivation better than boys. We provide the first causal evidence on how gender differences in sleep cycles can help explain the gender performance gap. We exploit over 240,000 assignment‐level grades from a quasi‐experiment where students' schedules alternated between morning and afternoon start times each month. Relative to girls, we find that boys' achievement benefits from a later start time. For classes taught at the beginning of the school day, our estimates explain up to 16% of the gender performance gap. (JEL H52, I20, I21)