In the 2000s, China's WTO entry constituted a major trade shock. In this paper, we analyze its eff ects on trade and value chains. The fragmentation of the global value chain makes it hard to disentangle who produces for whom. Value added trade contains this information. We build a multi-sector...

To what extent has trade liberalization contributed to global production fragmentation and the formation of production networks? We derive structural equations for value added trade flows, the domestic value added content of exports (DVA) and the value added exports to exports (VAX) ratio, as...

Fragmentation of the global value chain makes it difficult to assess the effects of trade liberalization on the global pattern of production. Gross bilateral trade ows no longer reveal a country's or a sector's value added contribution. Yet, it is value added that matters for employment and...

The business literature suggests that exporters either use trade intermediaries or own foreign sales representations. Standard trade models are silent about this choice. We develop a model where producers differ with respect to competitive advantage and where trade intermediaries arise...

We propose a stylized monopolistic competition model of international trade where firms differ with respect to the expected economic lifetime of their innovations. Upon entry, they receive a commonly observed signal which is updated over time. Jointly with partial irreversibility of investment,...

We propose a stylized monopolistic competition model of international trade where firms differ with respect to the expected economic lifetime of their innovations. Upon entry, they receive a commonly observed signal which is updated over time. Jointly with partial irreversibility of investment,...

The business literature and recent descriptive evidence show that exporting firms typically require the help of foreign trade intermediaries or need to set up own foreign wholesale affiliates. In contrast, conventional trade theory models assume that producers can directly access foreign...