Results

Blog

VoxTalks:

Tariff Confusion (podcast)

If you run a business that exports to the United States, how big is the tariff you have to pay? In 2025 that question was hard to answer. Between February and December, 53 separate announcements introduced, delayed, rein...Read more...

CEP discussion paper

Tariff confusion

US trade policy in 2025 was unprecedented in the frequency, complexity and volatility of tariff announcements. This paper presents evidence that the resulting policy environment reduced trade flows because of confusion o...Read more...

Journal article

Journal of International Economics:

Tickets to the global market: first US patent award and Chinese firm exports

We investigate how international patent activity enables firms from emerging economies to thrive in the global marketplace. We match Chinese customs data to US patent records, and leverage the quasi-random assignment of ...Read more...

Blog

Vox EU:

Deep integration and trade: UK firms in the wake of Brexit

How does dismantling deep integration affect international trade? This column uses firm-level customs data to study the impact of Brexit on UK goods trade. The authors find that in the short term, exit from the Single Ma...Read more...

CEP discussion paper

Multinational firms and global innovation

This paper provides an integrated analysis of multinational companies' global production and innovation. We establish novel stylized facts using rich data on the network of production affiliates and patent activity of Ge...Read more...

CEP discussion paper

Productivity, matchability and intermediation in production networks

This paper examines intermediation in production networks to unpack the firm attributes and matching costs that govern firm-to-firm networks and the gains from trade. Exploiting rich customs data for Chile, we show that ...Read more...

CentrePiece article

How Brexit affected the trade of UK firms

The UK left the EU?s single market and customs union at the start of 2021, entering into the Trade and Cooperation Agreement with the EU. Rebecca Freeman, Marco Garofalo, Enrico Longoni, Kalina Manova, Rebecca Mari, Thom...Read more...

Blog

LSE British Politics and Policy:

How Brexit affected the trade of UK firms

The UK left the EU's single market and customs union at the start of 2021, entering unto the Trade and Cooperation Agreement with the EU. Rebecca Freeman, Marco Garofalo, Enrico Longoni, Kalina Manova, Rebecca Mari, Thom...Read more...

CEP discussion paper

Deep integration and trade: UK firms in the wake of Brexit

How does dismantling deep integration affect international trade? This paper studies the consequences of economic disintegration by estimating the impact of Brexit on goods trade by UK firms. The UK's exit from the EU's ...Read more...

CEP discussion paper

Firm heterogeneity and imperfect competition in global production networks

How do production networks and market structure interact to shape the effects of trade and competition policy? We develop a model with two-sided firm heterogeneity, matching frictions, and imperfect supplier competition....Read more...

CEP discussion paper

Tickets to the global market: first US patent awards and Chinese firm exports

We investigate how international patent activity enables firms from emerging economies to thrive in the global marketplace. We match Chinese customs data to US patent records and leverage the quasi-random assignment of U...Read more...

Journal article

Journal of Political Economy:

The origins of firm heterogeneity: a production network approach

We explore firm size heterogeneity in production networks. In comprehensive data for Belgium, firms with more customers have higher total sales but lower sales and lower market shares per customer. Downstream factors, es...Read more...

External report

The economics of Brexit: what have we learned?

This eBook, produced by VoxEU/CEPR and UK in a Changing Europe, brings together leading academic researchers on trade, immigration and political economy to assess what we have learned, 18 months on from its implementatio...Read more...

Chapter

The impact of Brexit on UK-EU trade

in The Economics of Brexit: What Have We Learned?

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CentrePiece article

Trade disruptions in the wake of Brexit

A dramatic fall in the value of UK imports from the European Union relative to the rest of the world occurred when the post-Brexit Trade and Cooperation Agreement came into effect. What's more, according to research by R...Read more...

Blog

LSE Business Review:

Brexit: the major trade disruption came after the UK-EU agreement took effect in 2021

The impact of Brexit on UK trade is a highly contested topic. Rebecca Freeman, Kalina Manova, Thomas Prayer, and Thomas Sampson summarise the findings of new research on how Brexit has affected the UK's goods trade with ...Read more...

CEP discussion paper

UK trade in the wake of Brexit

This paper studies the impact of Brexit on the UK's trade with the EU relative to its trade with the rest of the world. We find no evidence that uncertainty and anticipation effects led to a significant decline in relati...Read more...

Journal article

The Review of Economics and Statistics:

Trade and management

?We study how management practices shape export performance using matched production-trade-management data for Chinese and American firms and a randomized control trial in India. Better-managed firms are more likely to e...Read more...

CEP discussion paper

Growing like China: firm performance and global production line position

Global value chains have fundamentally transformed international trade and development in recent decades. We use matched firm-level customs and manufacturing survey data, together with Input-Output tables for China, to e...Read more...

CEP discussion paper

Trade, productivity and (mis)allocation

We examine the gains from globalization in the presence of firm heterogeneity and potential resource misallocation. We show theoretically that without distortions, bilateral and export liberalizations increase aggregate ...Read more...

Journal article

European Economic Review:

Host-country financial development and multinational activity

This paper evaluates the influence of host-country financial conditions on the global operations of multinational firms. Using detailed U.S. data, we establish that financial development in a country is associated with r...Read more...

CEP discussion paper

The origins of firm heterogeneity: a production network approach

This paper quantifies the origins of firm size heterogeneity when firms are interconnected in a production network. Using the universe of buyer-supplier relationships in Belgium, the paper develops a set of stylized fact...Read more...

CEP discussion paper

Managing trade: evidence from China and the US

We study how management practices shape export performance using matched production-trade-management data for Chinese and American firms and a randomized control trial in India. Better managed firms are more likely to ex...Read more...

CEP discussion paper

Multi-product firms and product quality

We examine the global operations of multi-product firms. We present a flexible heterogeneous-firm trade model with either limited or strong scope for quality differentiation. Using customs data for China during 2002-2006...Read more...

Journal article

Journal of International Economics:

Multi-product firms and product quality

We examine the global operations of multi-product firms. We present a flexible heterogeneous-firm trade model with either limited or strong scope for quality differentiation. Using customs data for China during 2002?2006...Read more...

Journal article

Journal of International Economics:

How firms export: processing vs. ordinary trade with financial frictions

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 fr...Read more...

CEP discussion paper

How firms export: processing vs. ordinary trade with financial frictions

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 fr...Read more...