Stock measures reflect the pool of human capital available in the economy at a specific point in time whereas flows reflect the contributions of incoming cohorts to the stock of human capital. A number of researchers have constructed international data sets that attempt to measure both stocks and flows of human capital across a large number of countries. Women are, however, overrepresented among university nonprofessionals and among those with some education beyond high school. Men, on the other hand, are overrepresented among high school graduates.