This chapter reviews the new approach to international trade based on firm heterogeneity in differentiated product markets. This approach explains a variety of features exhibited in disaggregated trade data, including the higher productivity of exporters relative to non-exporters,...

We study international trade in a model where consumers have non-homothetic preferences and where household income restricts the extensive margin of consumption. In equilibrium, monopolistic producers set high (low) prices in rich (poor) countries but a threat of parallel trade restricts the...

We review a recent body of theoretical work that aims to put numbers on the consequences of globalization. A unifying theme of our survey is methodological. We rely on gravity models and demonstrate how they can be used for counterfactual analysis. We highlight how various economic...

The paper reviews selected implications of trade integration via global value chains (GVC) and identifies gaps in understanding of GVC risks. Despite recent significant progress, many GVC risks remain unknown. The paper also discusses pros and cons of possible strategies to minimise GVC risks...

This paper investigates the heterogeneous response of exporters to real exchange rate fluctuations due to product quality. We model theoretically the effects of real exchange rate changes on the optimal price and quantity responses of firms that export multiple products with heterogeneous levels...

This note explores the relationship between the price elasticity of demand and the R&D intensity of the product. We introduce the concept of R&D intensity into a standard Dixit-Stiglitz/Krugmann-type setting. R&D activity is treated as a ficed cost of production. Within this framework, sectors...

This Paper estimates the cross-price elasticity of exports with respect to investment costs for bilateral relations between 36 countries. We show that the effect of reducing foreign direct investment costs on exports depends on country characteristics and trade costs as predicted by the Markusen...

A country or firm's position in the value chain will largely depend on its comparative advantage, and therefore the mix of skills and resource endowments it brings to international production. For some, this might initially involve specialising in the labour intensive segments while others may...

This paper uses “centrality” metrics to reflect position with Global Value Chains (GVCs). Central sectors reflect those that are highly connected (both directly and indirectly) and influential within globalproduction networks, whereas peripheral sectors exhibit weak linkages and are less...

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...