To curb the effect of the Covid-19 pandemic on public health, many countries around the world introduced lockdown policies in 2020. We estimate the effect of these lockdowns on international trade flows, using a rich dataset of monthly bilateral product-level trade flows that covers roughly...

This paper develops a method to measure difficulties in market access over a large set of countries (both developing and developed) and industries, during the period 1980-2006. We use a micro-founded heterogeneous-consumers model to estimate the impact of national borders on global and regional...

This paper investigates the effect of export shocks on innovation. On the one hand a positive shock increases market size and therefore innovation incentives for all firms. On the other hand it increases competition as more firms enter the export market. This in turn reduces profits and...

In this paper, we apply textual analysis and machine learning algorithms to construct an index capturing trade tensions between US and China. Our indicator matches well-known events in the US-China trade dispute and is exogenous to the developments on global financial markets. By means of local...

Product standards are omnipresent in industrialized societies. Though standardization can be beneficial for domestic producers, divergent product standards have been categorized as a major obstacle to international trade. This paper quantifies the effect of standard harmonization on trade flows...

We develop a simple model to study the interactions between a supplier's financial constraints and contract incompleteness in a vertical relationship. Production complexity increases the extent of contract incompleteness and the hold-up problem, which generates a cost when the supplier needs...

How do firms' sales interact across markets? Are foreign and domestic sales complements or substitutes? Using a large French firm-level database that combines balance-sheet and product-destination-specific export information over the period 1995-2001, we study the interconnections between...

We study the implications of trade aggregation in an infinite-horizon economy with multiple countries, asking whether there is a role for alternatives to the Armington aggregator in a wide range of workhorse open-economy macroeconomics models. We show analytically that the first-order dynamics...

Studies of firm-level data have shown that there is a huge dispersion of productivity across firms even when industries are narrowly defined. So there is a significant opportunity for the least productive firms to catch up to the most productive. The formers’ convergence could therefore...

The unprecedented drop in international trade during the last quarter of 2008 and the first quarter of 2009 has mostly been analysed at the macroeconomic or sectoral level. However, heterogeneous exporters in terms of productivity, size or external finance dependence should be hit differently by...