We study a model of endogenous growth where firms invest both in product and process innovations. Product innovations (that open up completely new product lines) satisfy the advanced wants of the rich. Subsequent process innovations (that decrease costs per unit of quality) transform the...

This paper presents a dynamic North-South general equilibrium model with non- homothetic preferences. Innovation takes place in the rich North while firms in the poor South at random imitate products manufactured in the North. The model is able to generate endogenous product cycles as described...

In this paper we use the frequency domain Granger causality test of Breitung/Candelon (2006) to analyse short and long-run causality between energy prices and prices of food commodities. We find that the oil price Granger causes all the considered food prices. However, when controlling for...

This article examines the effect of inflation expectation uncertainty on inflation, inflation expectations and the output gap. For monetary policy, guiding inflation expectations provides an instrument to affect economic conditions. However, expectation uncertainty may undermine monetary...

To counter the effects of population aging in rich industrialized countries, raising immigration from and raising capital exports to younger developing countries are often seen as alternative solutions. In this paper, we explicitly account for mobility constraints in the form of immigration...

The surge of maritime piracy in the Gulf of Aden is often related to lawlessness and poverty in Somalia. We set up a simple model to describe the choice of becoming a pirate in a setting with an industrialized and a developing country which both engage in fishing in the same waters. As a result...