This result is pretty much well known for ANY economist, even people with only econ 101. For instance, check the first graph of this link: http://www.statemaste

This result is pretty much well known for ANY economist, even people with only econ 101. For instance, check the first graph of this link: http://www.statemaster.com/encyclopedia/Labour-market http://www.statemaster.com/encyclopedia/Labour-market The logic is the following: 1) More educated people earn higher wages (if not, then why spend so much time and money on education?). 2) Higher wages gives you more money for consumption 3) As people fill their consumption needs, they now want more leisure. For that, they work less hours.