weak. The limited direct evidence of human capital on firm productivity suggests that human capital is indeed productive … role of size and human capital as determinants of either earnings or productivity has been the role of unobserved factors …. In this paper we investigate the roles of size and human capital in determining both earnings and productivity using a …

Do openness to trade and higher levels of human capital promote faster productivity growth? That they do is a key … on productivity growth. If the level of openness of an economy is doubled the underlying rate of technical progress will … the level of income but no effect on underlying productivity growth. Our preferred estimator combines high and low …

not due to a non-homothetic technology. Observable skills are not quantitatively important as determinants of productivity …

a non-homothetic technology. Observable skills are not quantitatively important as determinants of productivity …

openness has a highly significant and large effect on the underlying rate of growth of productivity, while human capital does …

The paper measures productivity growth in seventeen countries in the nineteenth and twentieth centuries.  GDP per …

Productivity is high in cities partly because the urban environment acts as a self-selection mechanism.  If workers … proportion of high ability workers.  As a consequence productivity in these cities is high for workers of all ability types. …

'transmission bias' in firm-level studies, which arises from firms' reaction to unobservable productivity realisations when making …

The labour productivity differentials between manufacturing firms in Ghana and South Korea exceed those implied by … and South Korea.  There is no significant difference in total factor productivity across the countries once we allow for … in the shape of the relationship between productivity and human capital across countries is crucial for understanding the …