This paper presents a trade model with firm-level productivity differences and R&D-driven growth. Trade liberalization causes the least productive firms to exit but also slows the development of new products. The overall effect on productivity growth depends on the size of intertemporal...

This paper provides a unified theory of the economic and demographic transition. Individuals make optimal decisions about fertility, education of their children and the type and intensity of the investments in their own education. These decisions are affected by different dimensions of mortality...

The political economy of resource rich countries is surveyed. The empirical evidence suggests that countries with a large share of primary exports in GNP have bad growth records and high inequality, especially if the quality of institutions and the rule of law are bad. The economic argument that...

Immigration as a source of population growth is traditionally represented by neoclassical growth models with negative output and growth effects in per capita terms for the host economy. The reasoning behind this is the assumption of decreasing returns to labour in the production function. This...

This paper presents a model in which long-run growth and industrial location are jointly endogenous. Specifically, it introduces Romer-Grossman-Helpman endogenous growth into Krugman’s core-periphery model with footloose labour. The paper focuses on stability of the symmetric equilibrium,...

This paper develops a tournament model of horizontal and vertical R&D under a lab-equipment specification. A key feature is that the overall growth rate is endogenous, as the splitting of the growth rate between the intensive and the extensive margin is itself endogenous. This setup gives rise...

A severe earthquake in San Francisco in 1906 severed electrical and gas lines and collapsed chimneys. Fires resulted, burning for four days over 2800 acres. The commercial and residential center of the city was destroyed. Two hundred fifty thousand people of the city’s 400,000 population were...

We build and parameterize a general equilibrium OLG model for an open economy to study hours of work in three age groups, education of the young, and aggregate per capita growth. The composition of fiscal policy plays a crucial role. The government sets tax rates on labor, capital and...

Examining the correlation between trade and income cannot identify the direction of causation between the two. Countries' geographic characteristics, however, have important effects on trade and are plausibly uncorrelated with other determinants of income. This paper, therefore, constructs...