The growth rate of total factor productivity seems to have increased recently, at least in the United States. Higher US productivity growth may justify higher stock market valuations than in the past and thus herald an emerging New Economy. However, the size of the estimated growth rate of total...

Translated to a cross-country context, the Solow model (Solow, 1956) predicts that international differences in steady state output per person are due to international differences in technology for a constant capital output ratio. However, most of the cross-country growth literature that refers...

This paper investigates Samuelson's (JEP, 2004) argument that technical progress of the trade partner may hurt the home country. We illustrate this prospect in a simple Ricardian model for sitations with outward knowledge spillovers. Within this framework Samuelson's "Act II" effects may occur....

Some recent empirical studies deny any direct performance effects of measures of geography and conclude that institutions trump all other potential determinants of development. For given effects of institutional quality, our empirical results indicate quantitatively important direct negative...

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 assumptions and alternative measures of human capital have...

We employ a combination of school fixed effects and IV estimation to estimate the effect of class size on student performance in 18 countries. Using the random part of the class-size variation between two adjacent grades within individual schools allows us to identify causal class-size effects....