costs after the end of the Second World War, but ending by 1970. In addition we introduce a new puzzle to the profession. Given the magnitude of the Baby Boom, roughly equal to fertility in 1900 for many of these countries, why did schooling of the Baby Boom cohorts not fall to the 1900 level of...

This paper introduces a new data set of state-level physical capital in the United States from 1840 to 2000. The new data is combined with measures of the labor force, human capital, land, and output by state to perform traditional accounting decom- positions. Growth in measured inputs accounts...