We estimate the relative roles of factor inputs and productivity in explaining the level of economic development, which … is measured as output per worker. For a large sample of countries, we show that alternative identifying productivity … productivity in a decomposition of output per worker. For a sample of OECD countries, we find that productivity has almost no role …

of education. Cross-country differences in qualityadjusted human capital can account for about half the world …

of education. Cross-country differences in quality-adjusted human capital can account for about half the world …