We investigate spillovers in spousal labour supply exploiting independent variation in hours worked generated by the introduction of the shorter workweek in France in the late 1990s. We find that female and male employees treated by the shorter legal workweek reduce their weekly labour supply by...

We study interdependencies in spousal labor supply by exploiting the design of the French workweek reduction, which introduced exogenous variation in one's spouse's labor supply, at constant earnings. Treated employees work on average two hours less per week. Husbands of treated women respond by...