Utilising panel data for 14 East European transition economies, we find support for the hypothesis that a greater degree of export variety relative to the U.S. helps to explain relative per capita GDP levels. The empirical work relies upon some direct measures of product variety calculated from...

This paper develops a simple and practical framework for characterizing (long-run) economic growth and fluid capital accumulation under shifting technological change. The framework specifies a technological change that depends on exogenous and endogenous factors as well as the interaction...

What determines the speed of the technology diffusion? What are the consequences of diffusion? This paper presents a model to address these questions. Skilled machine-users adopt a new technology first, while unskilled users wait until machines become more reliable and accessible. The quality...

This paper formulates dynamic R\&D investment decisions of private firms as an optimal stochastic control problem. It derives explicitly R\&D investment decision rule and the cross equations parameter restrictions imposed by the rational expectations hypothesis, using the Riccati equations only...

This paper studies the welfare consequences of a government regulation that forces a patented equipment to be supplied by a number of independent producers. On the one hand, such a regulation hurts the value of a patent and therefore reduces activities in the R&D sector. On the other hand, the...

A growth model with endogenous innovation and accumulation of high-tech and low- tech human capital is developed. The model accounts for a recently established fact about human capital composition, which stated that \the richest countries are investing proportionally less than middle income...

This paper studies the impact of electricity deregulation and restructuring on research and development (R&D) expenditures of investor owned utilities. The differing pace of deregulation in the fifty states provides heterogeneity in institutional structure and competitive forces, and showcases...