How should the size and number of cities evolve optimally as population grows? Stripped of the constraints of geography itself, the setup of the New Economic Geography implies that de-agglomeration (or de- urbanization) is efficient. The number of cities increases while the size of each...

A stylized pattern of interindustry trade between developing and developed regions identifies the former as specialists in light manufactures and latter in heavy manufactures. Conventional explanations for this pattern rely on the factor proportions model, which is empirically suspect. This...

This paper presents a new theoretical framework to analyze=20 financial markets in an international context. We build a two-country=20 macroeconomic model in which agents are risk averse, assets are imperfect=20 substitutes, the number of financial assets is endogenous, and cross-border= =20...

This paper analyzes the genericity of bifurcations of one-parameter families of smooth (C1) vector fields that are embedded in an underlying multi-dimensional parameter space. Bifurcations with crossing equilibrium loci are called 'split bifurcations.' They include, for example, the pitchfork...

We study the indeterminacy of equilibrium in the Fujita-Krugman (1995) model of city formation under monopolistic competition and increasing returns. Both the number and the locations of cities are endogenously determined. Assuming smooth transportation costs, we examine equilibria in...

WTO negotiations rely on tariff reduction formulas. It has been argued that formula approaches are of increasing importance in trade talks, because of the large number of countries involved, the wider dispersion in initial tariffs (e.g. tariff peaks) and gaps between bound and applied tariff...

This paper analyzes the incentives for governments to impose export subsidies when firms invest in a cost saving technology before market competition. Governments first impose an export subsidy or a tax. After observing export policy, firms invest in cost reducing R&D and subsequently compete in...

Although the GATT prohibits discriminatory import tariffs, it includes means for circumventing this prohibition. The previous literature uses static models and discriminatory tariffs increase welfare. In a dynamic model, if governments lack the ability to precommit, this is not necessarily true....

'Everyone against the protectionism of developed countries' Even if the debate on globalization pits sceptics and enthusiasts against one another, they seem to agree on exposing the protectionism of developed countries. This is illustrated by a recent report by OXFAM on trade, the way some...

Although the core model of the Dutch Disease makes unambiguous predictions regarding the negative effect of a resource boom on a country’s manufacturing exports, the empirical literature that has followed has not clearly identified this effect. I attribute this to the failure of the existing...