We study the effect of birth order on personality traits among men using population data on enlistment records and occupations for Sweden. We find that earlier born men are more persistent, socially outgoing, willing to assume responsibility, and able to take initiative than later-borns. In...

We study the effect of birth order on personality traits among men using population data on enlistment records and occupations for Sweden. We find that earlier born men are more persistent, socially outgoing, willing to assume responsibility, and able to take initiative than later-borns. In...