This paper examines the centralization of collective bargaining where unions are Stackelberg leaders, firms invest in capital and purchase intermediate goods from each other, and where learning-by-investment causes persistent technological change. The main finding is the following. Provided that...

This paper analyzes the growth and welfare effects of competition in an endogenously-growing economy with imitation and non-diversifiable risk. The main findings are as follows. There is no imitation without positive profits during innovation races. A larger proportion of competing industries...

A multi-economy Schumpeterian growth model is constructed. Economies are interdependent through technology transfer. Households can stay as workers or become researchers at some cost. Workers are employed in production and researchers in R&D. Workers are unionized and union power depends on the...

This paper examines an economy with following properties. Attempts to restrain illegal immigration incur costs. Illegal workers can work only in the competitive sector. Workers and employers bargain over wages in the unionized sector and lobby the government for immigration policy and workers’...

Since World War II, mortality has decreased in the developing world. This paper explores the effects of this mortality fall on economic and demographic growth by a family-optimization model, in which fertility is endogenous and relative wealth yields utility because of status-seeking. The main...

This document considers an economy with many regions and two engines of growth: horizontal R&D, which increases the number of polluting product lines; and vertical R&D, which improves productivity in these lines. Pollution in any region decreases welfare in all regions. Any group of regions can...

I consider the case where the conservation of land yields utility through biodiversity, firms improve their efficiency by in-house R&D and a large number of countries establish a self-interested government for biodiversity management. I compare the regulation of land use with direct subsidies...