A new database on the barriers faced by foreign suppliers of services has been produced by the World Bank. Data for 103 countries are available on 11 of the most important services sectors in international trade. Based on these data and building on the methodology and publications supported by...

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...

In this chapter I explain an innovative modeling approach that incorporates services, foreign direct investment (FDI) and endogenous productivity effects from services. I begin with a small stylized model to help understand the fundamental economics. The model shows that services liberalization...

Despite the fact that many modern preferential trade agreements include commitments to foreign investors in imperfectly competitive services sectors, the literature has not established conditions under which these agreements are beneficial or harmful. The authors fill that void by developing a...