Hard times give rise to greater demand for protection. International trade rules include provisions that allow for raising barriers to aid industries when they suffer economic injury. Yet widespread use of flexibility measures may undermine the trade system and worsen economic conditions. How do states balance these conflicting pressures? This article assesses the effect of crises on cooperatio...

Trade has become the main mode of transport for many invasive species including diseases and agricultural pests. Most species are brought to their new homes unintentionally, which constitute a market failure rooted in international trade. Unless it is practical to drive invasion risk to zero, the external costs may justify a tariff. In this paper we analyze the political process likely to gover...