Using an expanding-variety endogenous growth model with purposive human capital accumulation, this paper provides an alternative explanation of why we may observe an ambiguous correlation between product market competition (PMC) and economic growth, and between population and economic growth...

Non-renewable resources are problematic for sustainable positive growth if they are essential for production, households solve an intertemporal Ramsey problem and population is growing. Second generation growth models predict that growth is positively related to growth in production factors. A...

We analyze a growth model where the damage of pollution depends on population density and the character of pollution. From the steady state rates of change, in the social optimum, of a neoclassical and a semi-endogenous growth model respectively, we conclude that the less responsive the damage...

How does risk or uncertainty in the productivity of research affect the growth rate of the economy? To answer this question, a model of endogenous technological change is used where sustained growth stems from intentional investments in R&D from profit-maximizing firms. The uncertainty arises...

How does risk or uncertainty in the productivity of research affect the growth rate of the economy? To answer this question, a model of endogenous technological change is used where sustained growth stems from intentional investments in R&D from profit-maximizing firms. The uncertainty arises...

The analysis in this paper shows that unpredictable variations in economic productivity may have a positive or negative effect on the average growth rate of output. This theoretical ambiguity result is not solely determined by the value of the elasticity of intertemporal substitution (of...

How does risk or uncertainty in the productivity of research affect the growth rate of the economy? To answer this question, a model of endogenous technological change is used where sustained growth stems from intentional investments in R&D from profit-maximizing firms. The uncertainty arises...

The analysis in this paper shows that unpredictable variations in economic productivity may have a positive or negative effect on the average growth rate of output. This theoretical ambiguity result is not solely determined by the value of the elasticity of intertemporal substitution (of...

Die Entwicklung der Bevölkerung geriet in Deutschland infolge der gegenwärtigen Finanzkrise der öffentlichen Haushalte und der Systeme sozialer Sicherung in den Focus des öffentlichen Interesses. Die in den meisten hochentwickelten Ländern sich abzeichnende Alterung und Schrumpfung der...