A Schumpeterian growth model is constructed where R&D firms innovate to produce better versions of the products or imitate to copy existing innovations. Because firms cannot use their innovations or imitations as collateral, they finance their investment by issuing shares. Households save by...

We construct a Schumpeterian growth model of a common market with following properties. Households can stay as workers or become researchers at some cost. Workers are employed in production and researchers in R&D. Workers are unionized. A larger common market means a wider variety of products...

This paper examines a developing economy by a family-optimization model in which the number of children is a normal good in preferences. Trade liberalization generates two effects: an income effect, which raises population growth in the short run; and a gender wage effect, which decreases that...

A multi-country Schumpeterian growth model is constructed when there is world-wide externality in technological knowledge. Households can enter the labour force as workers or become engineers at some cost. Production employs both workers and engineers while R&D uses only engineers. Workers are...

We construct a political equilibrium in which employers and labour unions bargain over labour contracts, wage-earners and profit-earners lobby the government for taxation and labour market regulation, and labour market legislation must be accepted by the majority of voters. We show that the...

A Schumpeterian growth model is constructed for an economy with wage bargaining. It is shown that the economy is subject to cycles in which capital, output and employment vary in fixed proportion. These increase through saving and capital accumulation until a new technology is introduced, at...

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...

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...