The growth of the Italian economy over the past 150 years since unification was accompanied by a dramatic increase in the country’s integration with European and global commodity markets: foreign trade in the long run grew on average faster than the overall economy. Behind the dynamics of...

We study the determinants of comparative advantage in polluting industries. We combine data on environmental policy at the country level with data on pollution intensity at the industry level to show that countries with laxer environmental regulation have a comparative advantage in polluting...

Freshwater scarcity is bound to be a major challenge of the 21st century. Drawing on newly available data, I investigate to what extent countries make efficient use of the very uneven water resources on a global scale. In particular, I find that countries that are relatively water abundant tend...

This Paper studies the evolution of sectoral labour concentration in relation to the level of per capita income. We show that various measures of sectoral concentration follow a U-shaped pattern across a wide variety of data sources: countries first diversify, in the sense that labour is spread...

We return to a familiar topic in international trade, comparative advantage, introducing it into a model of economic geography. We provide a clear counterexample to the familiar result that trade liberalization leads to increased industrial concentration. Instead, lower trade costs may lead to a...

This Paper develops a model for analysing the costs and benefits of intellectual property enforcement in LDCs. The North is more productive than the South and is the only source of innovator. There are two types of goods, and each bloc has a comparative advantage in producing a specific type of...

We consider an endogenous growth model that includes international trade in capital goods. The model yields several distinct balanced growth solutions that can be classified using stability under adaptive learning. Some of the equilibria can involve growth rates much higher (or lower) than...

This paper develops a model to analyse the implications of firing costs on incentives for R&D and international specialization. The key idea is that, to avoid paying firing costs, the country with a rigid labour market will tend to produce relatively secure goods, at late stages in their product...