The Interaction between Human and Physical Capital Accumulation and the Growth-Inequality Trade-off

Abstract

This paper analyzes the effects of technological change on growth and inequality in a two-sector economy. The key mechanism is the evolution of the differential rates of return to human relative to physical capital as they respond to the changing technology. Productivity enhancement in the human capital sector increases the growth rate permanently, but in the final output sector, it has only a temporary effect. The effects on inequality depend on (i) the underlying source of inequality and (ii) the time horizon over which the productivity increase occurs. The model can generate growth-inequality relationships consistent with the empirical evidence.