Whether they are financial, economic, or psychological, discount rates affect most economic decisions: investment and savings, hirings and firings, defaults and refinancing, financial and economic reforms, learning and experimentation, and any other decision with long-term consequences, such as...

We examine whether credit contributes to business cycle fluctuations by dirctly affecting consumption rather than through the new well understood investment channel.

Why do so many African governments consistently impose high tax rates and make little investment in productive public goods when alternative policies could yield greater tax revenues and higher national income? We posit and test an intertemporal political economy model in which the government...

Contemporary policy debates on the macroeconomics of aid often concentrate on short-run Dutch disease effects, ignoring the possible supply model of aid and public expenditure in which public infrastructure capital generates an inter-temporal productivity spill over for both tradable and...

There is widespread concern that an international agreement on stringent climate policies will not be reached because it would imply too high costs for fast growing economies like China.  To quantify these costs we develop a general equilibrium model with fully endogenous growth.  The...

This paper considers a model of endogenous growth with two sectors. It shows that it may be desirable to concentrate research in one sector, and so have unbalanced growth, but that the pressure of competition in research may cause the private sector to spread research too widely, and so have...

Why might there be a long-run trade-off between growth and unemployment? In general equilibrium, the returns on the factors of production are interdependent. This paper develops a model where the determination of the wage is central to the evolution of these incentives. The incentive to hire...

This paper examines the (non) equivalance between aid flows and trade preferences as alternative forms of donor assistance in the presence of learning-by-doing externalities in recipient country export production. Using a two-period model based on vanWijnbergen (1985), in which the productivity...

This paper examines the effects of fiscal and monetary policy in a two-sectorial endogenous growth model.