We introduce firm and worker heterogeneity into a model of innovation-driven endogenous growth. Individuals who differ in ability sort into either a research sector or a manufacturing sector that produces differentiated goods. Each research project generates a new variety of the differentiated...

While the "risk amelioration" literature suggests that risk sharing channels savings into risky but productive technologies and hence favours growth, models focused on precautionary savings reverse this conclusion. We solve, by means of numerical techniques, a model based on human capital...

In this paper we synthesize exogenous and endogenous sources of economic growth in a stochastic dynamic general equilibrium model. Endogenous growth can be engendered by internal constant returns to scale or by external increasing returns to scale in the production of human capital or in the...

The paper surveys and extends recent results on the effect of changes in government fiscal and financial policy, and in private savings behaviour, on economic growth. Private saving behaviour is represented by an overlapping generations (OLG) model. The supply side of the model permits...

We analyse the implications for the dynamics of capital accumulation of market power and endogenous demand elasticities, in an environment in which the latter are affected by the number of competitors in each industry. In equilibrium the interest rate increases as capital accumulates, even...

We outline six facts that should be explained by an international growth model: 1) Conditional convergence; 2) cross-country dispersion of growth rates; 3) cross-country dispersion of per capita income levels; 4) cross-country dispersion of savings rates; 5) within country correlation of savings...

This paper examines the effects of three alternative rules for public investment on output growth in a model with private and public capital. The rules considered are: (i) a fixed ratio of public capital to output; (ii) a fixed growth rate for public capital; and (iii) a fixed ratio of public...

Pooled regressions, first of eight and then of sixteen countries, show a steady and robust process of endogenous growth in Europe since 1870, interrupted only by the events of World War II and the impact of convergence towards US levels of performance in the 1950s and the 1960s. This result...

This paper reviews the cross-country record of economic growth, using as organizing framework how economic theory has guided that empirical analysis. The paper argues that recent studies of economic growth - both empirical and theoretical - distinguish from previous work in three distinct ways:...