The fragmentation of production across borders allows firms to make and export final goods, or to perform only intermediate stages of production by processing imported inputs for re-exporting. We examine how financial frictions affect companies’ choice between processing and ordinary trade -...

The enormous global demand for smartphones in recent years has created a new global tech cycle. In 2016 alone, global smartphone sales reached close to 1.5 billion, one for every fifth person on earth. In turn, this has engendered complex and evolving supply chains across Asia. We show that the...

Global smartphone sales may have peaked. After reaching nearly 1.5 billion units in 2016, global smartphone sales have since declined, contributing negatively to world trade in 2019 and suggesting that the global market may now be saturated. This paper develops a simple model to forecast...

We demonstrate that durable MFN tariff elimination affects trade patterns through several layers, and magnitudes of effects are sizable. The WTO Information Technology Agreement's (ITA) unique setting allows us to overcome the challenges associated with identifying effects of non-discriminatory...

We undertake a trade-growth accounting exercise by decomposing data on changes in bilateral international trade flows into their direct (endowment accumulation, productivity growth, changes in trade costs, changing preferences) and indirect components (general equilibrium effects). Furthermore,...

This paper establishes a causal link between the dollar exchange rate and international trade flows, employing a new instrument for the U.S. Dollar that is based on domestic U.S. housing activity (Ma and Zhang (2019)). In line with the dominant currency paradigm (Gopinath et al. (2020)), import...

The Cold War was the defining episode of geopolitical fragmentation in the twentieth century. Trade between East and West across the Iron Curtain (a symbolical and physical barrier dividing Europe into two distinct areas) was restricted, but the severity of these restrictions varied over time....

This paper provides evidence that the U.S. dollar affects countries' exports through the financial channel of the exchange rate (Bruno and Shin (2015)). Using global data on trade between countries whose currency is not the U.S. dollar, it documents a positive relationship between the dollar and...

Economy-wide shocks affect demand, supply, and intermediary sectors simultaneously. We dissect the impact of the Covid-19 pandemic on international trade by combining information from customs records, smartphone-based human mobility, and container ship port calls. We find that local disruptions...

With the availability of international value added trade data it has become evident that gross export data and value added data do not provide the same information. Although gross exports crosses national borders and is the target of trade policy, value added data tell us what fragment in the...