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...

Based on Baumol’s cost-disease model, we develop two alternative measures of the change in the productivity of schooling. Both productivity measures are based on changes in the relative price of schooling. We find that in most OECD countries the price of schooling has increased faster in...

In West Germany workers with similar skills earn different wages according to the industry in which they are employed. This finding is no surprise given the institutional rigidities of the West German labor market. But the similarity of the interindustry wage structures in West Germany and in...

Acemoglu, Johnson, Robinson, and Yared (2008) demonstrate that estimation of the standard adjustment model with country-fixed and time-fixed effects removes the statistical significance of income as a causal factor of democracy. We argue that their empirical approach must produce insignificant...

The paper considers the transformation of the political system as countries pass through the Grand Transition from a poor developing country to a wealthy developed country. In the process most countries change from an authoritarian to a democratic political system. This is shown by using the...

Long-run development (in income) causes a large fall in the share of agriculture commonly known as the agricultural transition. We confirm that this conventional wisdom is strongly supported by the data. Long-run development (in income) also causes a large increase in democracy known as the...

Regional output per worker has converged in China in the era of market socialism since 1978. The estimated speed of convergence is about 2 percent. This speed of convergence can be explained by an open economy neoclassical growth model in the tradition of Robert Solow. My empirical results show...