We assess the impact of U.S. trade policy uncertainty (TPU) toward China in a tractable general equilibrium framework with heterogeneous firms. We show that increased TPU reduces investment in export entry and technology upgrading, which in turn reduces trade flows and real income for consumers....

Since the mid-1980s a substantial body of research has taken shape on trade in services. Much of this is inspired by the WTO and regional trade agreements. However, an increasing number of papers focus on the impacts of unilateral services sector liberalization. The literature touches on...

The Doha Round must be concluded not because it will produce dramatic liberalization but because it will create greater security of market access. Its conclusion would strengthen, symbolically and substantively, the WTO’s valuable role in restraining protectionism. What is on the table would...

Trade and investment in services is inhibited by a range of policy restrictions, but the best offers so far in the Doha negotiations are on average twice as restrictive as actual policy. They will generate no additional market opening. Regulatory concerns help explain the limited progress. We...

Since the mid 1980s a substantial amount of research has been undertaken on trade in services. Much of this is inspired by the WTO or regional trade agreements, especially the EU, but an increasing number of papers focus on the impacts of services sector liberalization. This paper surveys the...

We study the relationship between geography and growth. To do so, we first develop a dynamic spatial growth theory with realistic geography. We characterize the model and its balanced growth path and propose a methodology to analyze equilibria with different levels of migration frictions. We...

The rise of the People’s Republic of China (PRC) in world trade has brought both benefits and anxiety to other economies. For many policy questions, it is crucial to know the extent of foreign value added (FVA) in exports. We review a general formula in Koopman, Wang and Wei (2008) for...

This paper documents a decreasing trend in the geographical concentration of EU agro-food imports. Decomposing the concentration indices into intensive and extensive margins components, we find that the decrease in overall concentration indices results from two diverging trends: the pattern of...

We analyze temporary trade barriers (TTB) in Canada in 1989-2009. We find that, despite the retreat in TTB stocks in the last decade, there are signs of a rebound. New AD cases have surged during the crisis, which portends a rise in AD stocks that could last for several years. Thus, the...

Business services firms are increasingly under pressure from foreign competition. We develop an oligopolistic competition model that studies the effect of trade liberalization on exit and sectoral restructuring in the business services sector. We assume that firms are heterogeneous in their...