Hidemichi Yonezawa

Reducing Trade Costs in East Africa : Deep Regional Integration and Multilateral Action

There is substantial evidence that with the progressive global decline in tariffs over several decades, trade costs are a more significant barrier to trade than tariffs, especially in Sub-Saharan Africa. This paper decomposes trade costs into three categories: costs that can be lowered by trade facilitation, nontariff barriers, and the costs of business services. The paper develops a 10-region, 18-sector, global trade model that includes Kenya, Tanzania, Uganda, and Rwanda of the East African Customs Union. The analysis finds that deep integration in the East African Customs Union that lowers these trade costs results in significant gains for the four countries, especially from improved trade facilitation. Extending the lowering of nontariff barriers and services liberalization multilaterally would increase the gains between two and seven times, depending on the country. that the analysis also finds that reducing nondiscriminatory services barriers in Kenya and Tanzania would increase welfare even more than multilateral reduction of discriminatory services barriers. The paper is innovative both conceptually and empirically. It contains foreign direct investment in services and is the first paper to numerically assess liberalization of barriers against domestic and multinational service providers in a multi-sector, multi-region, applied general equilibrium model. The paper uses new databases of the ad valorem equivalents of barriers in services and the time in trade costs. Both databases are shown to be important to the results.

Higher Price, Lower Costs? Minimum Prices in the EU Emissions Trading Scheme

This paper examines the efficiency and distributional impacts of introducing a price floor in an emissions trading system (ETS) when environmental regulation is partitioned. We theoretically characterize the conditions under which a price floor enhances welfare. Using a multi-country multi-sector numerical general equilibrium model of the European carbon market, we find that moderate minimum price levels in the EU ETS can reduce the costs of EU climate policy by up to thirty percent and yield outcomes close to uniform carbon pricing. Moreover, most of the EU Member States would gain. Our results are robust with respect to parametric uncertainty in production and consumption technologies.