The World Trade Center attack has shed light on the urgent need to implement preventing measures against terrorism and to enhance cooperation in the global security system for all countries. However, international coordination cannot be taken for granted. It is often ineffective and likely to...

We study the impact of transnational terrorism diffusion on security and trade. We set a simple theoretical model predicting that the closer a country to a source of terrorism, the higher the negative spillovers on its trade. The idea is that security measures, which impede trade, are directed...

This paper studies the effect of oil prices on the geography of international trade. We model transport costs as a function of variable and fixed costs. By affecting the first cost component,oil prices can then modify the structure of transportation costs across partners. This, we argue, acts as...

This paper is the first to use the Banque de France database on firm-level exports and imports of services. We first show that firms trading services are bigger, more productive and pay higher wages than the purely domestic ones. Second, exports are very concentrated among a few numbers of...

We study the relationship between inequality and inter-groups conflicts (riots), focussing on social inequality. Disadvantaged societal groups experience discrimination and thus have limited access to some social and labour resources like education or employment. First, we experimentally...

In this paper, we study the impact of transnational terrorism diffusion on security and trade. We set up a simple theoretical model predicting that the closer a country is to a source of terrorism, the higher the negative spillovers on its trade. The idea is that security measures, which impede...

Recent geography and trade empirical studies based on monopolistic competition [Hummels, 1998; Hanson, 1999; Head and Ries, 1999] suggest high levels of trade price-elasticities (between 3 and 11). However, direct estimations of price-elasticities in trade equations, using price indexes at the aggregate...