Empirical results from a random-effects regression model show that ethnic heterogeneity has a negative effect on growth. The negative effect is seen largely in the hampering of efficiency improvements, but not capital accumulation.

Ethnic heterogeneity influences economic growth through various channels such as efficiency improvement, capital accumulation, and technological progress. However, it is open to discussion exactly how ethnic heterogeneity affects these channels. Hence, this paper attempts to examine the effects...

Empirical results through a fixed effects regression model show that government size has a negative effect on growth mainly through hampering capital accumulation. When a sample is divided into OECD and non-OECD countries, the negative effect of government size on capital accumulation persists...