Results

CEP discussion paper

Dynamic effects of trade

The existence of aggregate welfare gains from trade is one of the classic insights from international economics. However, these conventional welfare gains are static, in the sense that they take existing factor supplies ...Read more...

Journal article

Journal of Environmental Economics and Management:

Trade and the scopes of pollution: evidence from China?s world market integration

Although the environmental impact of trade has been a long-standing concern, there is still scant evidence on the channels through which international market access affects pollution. We exploit the unique episode of Chi...Read more...

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...

Blog

LSE Management:

How America out-deindustrialised Europe

Despite the prevailing narrative of Western deindustrialisation as one of a rigid Europe and a dynamic America, Richard Baldwin, Saul Estrin, and Bob Hancke argue that the comparison of the EU with the US turns this narr...Read more...

Journal article

Regional Science and Urban Economics:

Ports, technology and inter-city trade: the economics and geopolitics of evolving maritime transport networks

Maritime transport remains the backbone of global trade, yet the port and ship- ping network that carries it has been transformed by containerization and related technological advances. Drawing on newly available granula...Read more...

Blog

LSE Business Review:

World trade remains dangerously dependent on a handful of shipping lanes

The conflict in Iran has been reignited by disagreements about control of a critical shipping lane. But the Strait of Hormuz is not the only chokepoint making global trade vulnerable. Ferdinand Rauch, Stephan Maurer and ...Read more...

CEP discussion paper

Ports, technology and inter-city trade: the economics and geopolitics of evolving maritime transport networks

Maritime transport remains the backbone of global trade, yet the port and shipping network that carries it has been transformed by containerization and related technological advances. Drawing on newly available granular ...Read more...

CEP discussion paper

Trade and the scopes of pollution: evidence from China's world market integration

Although the environmental impact of trade has been a long-standing concern, there is still scant evidence on the channels through which international market access affects pollution. We exploit the unique episode of Chi...Read more...

Journal article

American Economic Journal: Macroeconomics:

Import liberalization as export destruction? Evidence from the United States

In trade models with scale economies import liberalization reduces exports within industries by shrinking real market potential. We find this export destruction mechanism reduced US export growth following the permanent ...Read more...

CEP discussion paper

International trade in an uncertain world

We develop a tractable quantitative model of international trade in which agents make bilateral investments in resilience under general equilibrium uncertainty. Under both complete and incomplete financial markets, we sh...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...

Blog

LSE British Politics:

Post-Brexit trade policy hit supply chains and workers

After Brexit, firms in the UK found their supply chains disrupted. Holger Breinlich, Elsa Leromain and Martina Magli show that subsequent declines in trade led to less employment and lower pay for workers - with firms im...Read more...

CentrePiece article

My must-read paper

Discover Swati Dhingra?s recommended reading on trade economics...Read more...

CentrePiece article

Take-away findings from food delivery apps

Do delivery apps reduce or enhance the attraction of cities?...Read more...

CentrePiece article

Brexit has been an economic failure: here?s the evidence

Putting up trade barriers has made the UK poorer...Read more...

Journal article

Review of Economics and Statistics:

Managing export complexity: the role of service outsourcing

As manufacturing firms expand globally, business services such as advertising and legal support become essential for entering new markets. Exploiting exogenous demand shocks, we document that French manufacturers increas...Read more...

Blog

LSE Business Review:

Brexit shows how firms react when restrictions are placed on the way they reach customers

Brexit changed how British firms could sell services in the European Union. By studying how companies reacted, Holger Breinlich and Martina Magli show that many implemented workarounds, such as setting up affiliates abro...Read more...

Blog

LSE British Politics:

Brexit has been an economic failure

Putting up trade barriers, higher import prices and uncertainty have made the UK poorer. Thomas Sampson provides the evidence showing how Brexit has negatively affected the UK's economy....Read more...

CEP discussion paper

What happens in Paris, does not stay in Paris: trade fairs and search and matching frictions

Search and matching frictions keep firms from forming international trade links. Trade fairs are a common, often subsidized remedy, yet causal evidence is scarce. We study Hungarian firms at the 1900 Paris World Exhibiti...Read more...

Journal article

Journal of International Economics:

How to grow an invoicing currency: micro evidence from Argentina

We study the internationalization of the Chinese renminbi (RMB) leveraging a unique policy experiment. In 2023, amid a dollar shortage, Argentina expanded a currency swap line with China. The share of imports from China ...Read more...

Journal article

American Economic Review:

Leaders in social movements: evidence from unions in Myanmar

Social movements are catalysts for crucial institutional changes. To succeed, they must coordinate members' views (consensus building) and actions (mobilization). We study union leaders within Myanmar's burgeoning labor ...Read more...

CEP discussion paper

Counting the costs: a quantitative assessment of Brexit?s effect on UK regional economies

This paper examines the implications of the EU-UK Trade and Cooperation Agreement (TCA) using a dynamic spatial general equilibrium model. Unlike previous studies that primarily projected potential impacts of Brexit base...Read more...

CEP discussion paper

Mind the break-up: when policy disrupts firms' supply chains

This paper examines how policy-induced supply-chain shocks affect firms? performances, using the UK-EU Trade and Cooperation Agreement (TCA) as a source of exogenous variation. Using UK microdata on firm-level goods and ...Read more...

CEP discussion paper

Should we stay or should we go? Firms? decision on services mode of supply

Services account for one-third of global trade, yet little is known about the impact of trade restrictions on services trade. To make progress in this area, it is crucial to understand through which modes services are tr...Read more...

Journal article

Journal of International Economics:

The US-China trade war creates jobs (elsewhere)

We examine the indirect effects of the 2018-2019 US-China trade war on Brazil?s labor market. We construct a measure of regional exposure to the trade conflict using industry-specific tariff changes and the sectoral empl...Read more...

Journal article

Economica:

Defining the geographical level of competition: a taxonomy of industry tradability

The paper develops a taxonomy of industry tradability to define the geographical level at which competition takes place. First, it creates a novel dataset that combines production and international trade data for both go...Read more...

CEP discussion paper

Sticky gravity

International trade flows show strong persistence over time. Standard static gravity models cannot rationalize this persistence and lack a micro-foundation for including lagged trade flows as a determinant of current tra...Read more...

CEP discussion paper

Cocaine goes bananas: global spillovers from an illicit supply shock

We study how a sharp expansion in Colombian cocaine production propagated internationally through global trade networks, generating substantial social costs. In Colombia, the production surge increased homicide rates by ...Read more...

CEP discussion paper

Growth insured: export credit insurance and trade

We estimate the causal effect of short-term export credit insurance (ECI) on firm-level exports using administrative data from China?s export credit agency merged with customs and tax records. Exploiting quasi-random var...Read more...

Journal article

Spatial Economic Analysis:

Digital network centrality and the structure of goods trade

This paper studies how digital infrastructure is associated with the spatial structure of international trade in goods. We embed data availability into a structural gravity framework, conceptualising it as an information...Read more...

CEP discussion paper

Digital network centrality and the structure of goods trade

This paper studies how digital infrastructure is associated with the spatial structure of international trade in goods. We embed data availability into a structural gravity framework, conceptualizing it as an information...Read more...

CEP discussion paper

The economics of tariffs

A central insight from neoclassical economics is that international trade operates like an improvement in production technology. It generates mutual aggregate welfare gains for countries as a whole, but creates winners a...Read more...

CEP discussion paper

Exchange-rate pass-through and invoicing currency choice in international production networks

We study exchange-rate pass-through and currency choice in international transactions, focusing on bilateral bargaining power in relationships between domestic buyers and foreign suppliers. Using detailed transaction-lev...Read more...

CEP discussion paper

Trade within multinational boundaries

Traditional theories of firm boundaries predict trade between vertically related units of the same firm. Using novel data that combine a comprehensive mapping of U.S. multinationals' production networks with their custom...Read more...

CEP discussion paper

Sustaining international rules in a multipolar world

We study the sustainability of international trading rules in a multipolar world. A rules-based equilibrium is shaped by three forces. A static temptation to exploit market power undermines cooperation, while two dynamic...Read more...

CEP discussion paper

Unpacking the restaurant experience: how food delivery technology favors the affluent urban core

We study how technological innovation has transformed the valuation of consumption services, using the sudden national expansion of food delivery services (FDS) in China as a natural experiment. Using a Bartik-style inst...Read more...

Journal article

SERIEs:

Paternity leave in Spain

Between 2017 and 2021, Spain progressively extended paternity leave from 2 to 16 weeks, equalizing it with maternity leave and introducing mandatory weeks. A 2018 reform also allowed fathers to split their leave. Using a...Read more...

Journal article

Journal of International Economics:

Liquidity as competitive advantage: the role of intangibles

We show that short-term liquidity can be a source of competitive advantage by enabling firms to invest in intangible assets. Our analysis leverages a French reform that capped payment delays in trade credit contracts, wh...Read more...

CEP discussion paper

Accommodating emerging giants in the global economy

How has aggregate income and welfare in the United States been affected by globalization and rapid productivity growth in emerging economies? We use the class of constant elasticity trade models to provide quantitative e...Read more...

Journal article

Journal of Political Economy: Macroeconomics:

Innovation and trade policy in a globalized world

What is the role of innovation policy in an open economy and how does it interact with foreign competition? We address this question employing a new innovation-driven growth model with two large open economies at differe...Read more...

Journal article

Italian Economic Journal:

Artificial intelligence in education: computer-assisted learning and AI-guided tutors

Artificial Intelligence (AI) and Computer-Assisted Learning (CAL) offer powerful tools to improve foundational skills and close educational gaps, with evidence showing meaningful gains in student performance, especially ...Read more...

CEP discussion paper

Equilibrium trade regimes: power- vs. rules-based

Members of the World Trade Organization are increasingly disregarding its rules, raising concerns about the future of the multilateral trading system. To analyze the sustainability of the rules-based trade regime, we dev...Read more...

CentrePiece article

Deglobalisation in disguise?

Brexit means that UK exporters of services now face more red tape and fewer opportunities....Read more...

CentrePiece article

How the US-China trade conflict boosted exports and employment in Mexico

Lower-paid workers in Mexican firms gained as exports shifted....Read more...

Journal article

International Economics:

Reassessing EU comparative advantage: the role of technology

Based on a sufficient statistics approach, we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimo...Read more...

Journal article

Canadian Journal of Economics:

Evaluating the impact of export finance support on firm-level export performance: evidence from Pakistan

This paper evaluates the impact of two large export finance support schemes on firm-level export performance. The Export Finance Scheme (EFS) and the Long-Term Finance Facility for Plant & Machinery (LTFF) provide loans ...Read more...

Journal article

Journal of International Economics:

Networks in trade - evidence from the legacy of the Hanseatic league

We study trade networks following the decline of the Hanseatic League, using a novel trade data set that covers cities and captains in Northern Europe over 190 years. By the time of its dissolution in 1669, trade on form...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:

The impact of the 2025 US tariff announcements on UK firms

In the first half of 2025, the US and some of its trading partners announced significant changes to import tariffs. This column uses newly designed questions to study the impact of these changes on UK firms and to assess...Read more...

Blog

Vox EU:

An alliance for open trade: How to counter Trump's tariffs

The US administration's latest threat to impose sweeping new tariffs on many of its closest allies signals a renewed embrace of aggressive unilateralism and misunderstood economics. This column argues that the only effec...Read more...

Blog

UK in a Changing Europe:

Deglobalisation in disguise?

Shania Bhalotia, Swati Dhingra and Danyal Arnold explain their study on the effect of Brexit on the UK's ability to export services abroad. They argue that exporters now face higher trade costs, more red tape and fewer o...Read more...

Blog

Vox EU:

The battle for trade currency dominance: The dollar vs the renminbi in Argentina

The US dollar has traditionally dominated the invoicing of international trade. But could other currencies one day replace it? This column examines a unique policy experiment in Argentina in 2023. Amid a severe dollar sh...Read more...

CEP discussion paper

How to grow an invoicing currency: micro evidence from Argentina

How can a currency achieve more widespread international use? We study the internationalization of the Chinese renminbi (RMB) through the lens of a unique policy experiment in Argentina. In 2023, amid a severe dollar sho...Read more...

CEP discussion paper

Deglobalisation in disguise? Brexit barriers and trade in services

Deglobalisation policies promote the vision that pulling back from economic integration can help correct international imbalances and reposition national economies for renewed prosperity. A core vision of Brexit was to t...Read more...

CEP discussion paper

Trade diversion and labor market outcomes

In 2018 and 2019, the US administration increased tariffs on imports from China. Did these tariffs lead to more US imports from other countries such as Mexico? Using highly disaggregated data on the universe of Mexican f...Read more...

Blog

Vox EU:

Export strength does not equal tech strength: Rethinking EU comparative advantage

Amid geopolitical shocks, the EU is revisiting its industrial strategy. However, traditional metrics often paint a misleading picture of Europe's underlying strength. This column uses a new approach to measure the EU's r...Read more...

Blog

Vox EU:

How the 2018/19 US tariffs against China boosted exports and employment in Mexico

In 2018 and 2019, the US administration hiked tariffs on imports from China. This column shows that imports from Mexico partly filled the gap, leading to an export and employment surge in Mexico. Using highly disaggregat...Read more...

Blog

LSE Inequalities:

Tariffs, automation and inequality: why US jobs won't return but developing countries will still lose

Headlines around Trump's sweeping tariffs have focused on trade wars, inflation and the geopolitical fallout. But a more profound shift is taking place, argues Viet Nguyen-Tien. Rather than restoring American jobs, these...Read more...

Blog

Vox EU:

The 2025 trade war: Dynamic impacts across US states and the global economy

In 2025, the US government announced a series of tariff increases targeting major trading partners, including Canada, China, and Mexico. This column estimates the economic consequences of these proposed tariffs to the US...Read more...

Government consultation

Treasury Committee: Bank of England Monetary Policy Reports

Swati Dhingra gave oral evidence to the Treasury committee....Read more...

Blog

Economics Observatory:

China Crisis

Headlines about China are dominated by the vagaries of trade war with the United States. Beyond those battles, there are big issues around consumer spending, the real estate market, the Belt and Road Initiative, and the ...Read more...

Blog

LSE Politics and Policy:

The UK deals with India, USA and the EU are symbolic

The Labour Government is on a trade deal spree. After signing a free trade agreement with India, the UK made a pact with the US to remove some of the tariffs on UK car and aerospace exports, and finally a new agreement w...Read more...

CEP discussion paper

The US-China trade war creates jobs (elsewhere)

We examine the indirect effects of the US-China trade war on Brazil's labor market. Using industry-specific tariff changes and the sectoral employment distribution across local labor markets, we construct a measure of re...Read more...

Journal article

The Quarterly Journal of Economics:

Putting quantitative models to the test: an application to the US-China trade war

The primary motivation behind quantitative work in international trade and many other fields is to shed light on the economic consequences of policy changes and other shocks. To help assess and potentially strengthen the...Read more...

Blog

LSE Business Review:

US-China tensions could become the biggest trade war in history

The announced US tariffs and the retaliatory actions taken by China have intensified. If the threats are carried out, they will drive the average implied US tariff to exceed 20 per cent, a level not seen since the 1930s....Read more...

Blog

LSE Politics and Policy:

Do Trump's tariffs signal the end of globalisation?

In this second instalment of his interview with Alexis Papazoglou, Thomas Sampson highlights the many uncertainties the future of global trade faces and argues that the biggest policy question for countries around the wo...Read more...

Blog

Imperial College Business School:

How protectionism risks undermining the US economy

Donald Trump's announcement of wide-ranging tariffs has threatened to upend the rules of global trade that have been in place for decades, impacting supply chains and businesses across the world. The US President's pla...Read more...

Blog

LSE Politics and Policy:

How will US tariffs affect the UK economy?

In this interview with Alexis Papazoglou, Thomas Sampson explains what the US tariffs mean for the UK economy and answers questions on the effects of Brexit on the UK's ability to negotiate the tariffs, as well as on wha...Read more...

Blog

Economics Observatory:

Liberation day

Last week's announcement of sweeping US tariffs will have a big impact on global trade. The method used to calculate the tax rates to be charged on imports from individual countries has surprised economists. For the UK, ...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

Trade with nominal rigidities: understanding the unemployment and welfare effects of the China shock

We present a dynamic quantitative trade and migration model that incorporates downward nominal wage rigidities and show how this framework can generate changes in unemployment and labor participation that match those unc...Read more...

Blog

LSE Business Review:

Advice to young women economists: learn to say no and protect your time

How are women making their mark in economics? To celebrate Women's History Month, Swati Dhingra shares her experiences, from India to British academia and the Bank of England. It took her a while to learn to say no and p...Read more...

Journal article

Climate Policy:

Policing carbon markets

Carbon markets have emerged in recent decades as one of the most important tools for curbing industrial greenhouse gas emissions, but they present a number of novel enforcement challenges as compared to more conventional...Read more...

CEP discussion paper

Multinational networks and trade participation

We provide a novel explanation for the dominance of multinational corporations (MNCs) in international trade: MNC affiliates face lower trade frictions in countries that belong to their parental network. Combining rich a...Read more...

External report

International Trade: Issue 2

Over the last four decades, many developing countries initiated reforms that have lowered barriers to trade. Yet despite these reforms, developing countries still remain far less open than developed ones, both because of...Read more...

CEP discussion paper

Labor market effects of global supply chain disruptions

We examine the labor market consequences of global supply chain disruptions. Specifically, we consider a temporary increase in international trade costs similar to the one observed during the COVID-19 pandemic and analyz...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

The We Society:

Improving social mobility through education and language with Lee Elliot Major (podcast)

Professor Lee Elliot Major joins Will Hutton to discuss the decline of social mobility in the UK and advocates for a broader understanding of systemic barriers, including arguing for a new approach towards language to im...Read more...

External report

Foreign Direct Investment

Multinational enterprises are at the centre of policy debates in low- and middle-income countries. As some of the most productive and innovative firms in the world, which are at the core of global supply chains, multinat...Read more...

Journal article

Economics of Education Review:

De-tracking at the margin: How alternative secondary education pathways affect student attainment

This paper estimates how marginal increases in the flexibility of between-school tracking affect student attainment by exploiting the addition of non-selective `comprehensive schools? and hybrid `vocational high schools?...Read more...

Journal article

The Economic Journal:

Lobbying for globalisation

Using detailed information from lobbying reports filed under the Lobbying Disclosure Act, we construct a unique dataset that allows us to identify which firms lobby on Free Trade Agreements (FTAs) negotiated by the Unite...Read more...

Journal article

Journal of the European Economic Association:

Labor unions and the electoral consequences of trade liberalization

We show that the Brazilian trade liberalization in the early 1990s led to a permanent relative decline in the vote share of left-wing presidential candidates in the regions more affected by the tariff cuts. This happened...Read more...

Blog

Vox EU:

What impact have trade sanctions had on Russia? (Podcast)

Recorded at the CEPR Paris Symposium. How effective have the trade sanctions imposed on Russia in 2022 been? Politically, they were comprehensive and quick. But anecdotal reporting has suggested that Russian firms that w...Read more...

Journal article

Journal of Monetary Economics:

Labor market effects of global supply chain disruptions

We examine the labor market consequences of global supply chain disruptions. Specifically, we consider a temporary increase in international trade costs similar to the one observed during the COVID-19 pandemic and analyz...Read more...

Blog

Vox EU:

Leveraging AI to navigate 'deglobalisation'

Trade wars, industrial policy, and myriad other supply chain disruptions have fast become the 'new normal'. Yet, given the highly opaque and complex nature of production processes, knowing how to navigate this rise of de...Read more...

Journal article

Review of International Economics:

Political competition and the strategic adoption of free trade agreements

I study how political competition affects the feasibility of free trade agreements (FTAs). I show that the possibility of political turnover creates strategic motivations for the formation of FTAs. Specifically, a govern...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...

Blog

EGC Voices in Development:

Development Dialogue: How can emerging economies break free from the sidelines of global trade? (podcast)

This episode of Development Dialogues addresses how lower-income countries have engaged with global trade. How have their approaches to trade differed based on their underlying institutional and economic structure? What ...Read more...

Blog

Vox EU:

High moments for superstar exporters

Aggregate exports are highly concentrated in a small group of firms, which are generally more productive than other firms. This column shows that productivity shocks generate different responses of aggregate exports depe...Read more...

Journal article

Canadian Journal of Economics:

Regional specialization: from the geography of industries to the geography of jobs

Our analysis begins with an empirical investigation of how employment concentration in industries and occupations across United States regions has changed over time, and how regional specialization has changed. Results ...Read more...

Blog

Vox EU:

Changes to firms' service delivery post-Brexit

Services can be supplied through cross-border trade, consumption abroad, commercial presence, and the presence of a natural person. The choice of delivery mode and the extent to which service traders can switch between m...Read more...

Journal article

Journal of International Economics:

New dawn fades: Trade, labour and the Brexit exchange rate depreciation

This paper studies consequences of the large exchange rate depreciation occurring when the UK electorate unexpectedly voted to leave the European Union. Sterling plummeted, recording the biggest one-day depreciation of a...Read more...

Journal article

The Review of Economic Studies:

Revisiting event study designs: robust and efficient estimation

We develop a framework for difference-in-differences designs with staggered treatment adoption and heterogeneous causal effects. We show that conventional regression-based estimators fail to provide unbiased estimates of...Read more...

Blog

LSE Impact of Social Sciences:

What makes the child penalty in academia different?

Women are underrepresented in senior academic positions in economics. Ria Ivandic and Anne Sophie Lassen assess the impact of having children on men and women's career trajectories and suggest how the sector can adapt....Read more...

CEP discussion paper

Political competition and the strategic adoption of free trade agreements

I study how political competition affects the feasibility of free trade agreements (FTAs). I show that the possibility of political turnover creates strategic motivations for the formation of FTAs. Specifically, a govern...Read more...

CEP discussion paper

A political disconnect? Evidence from voting on EU trade agreements

We study votes of Members of the European Parliament (MEPs) on the approval of free trade agreements (FTAs). Against widespread Eurosceptic arguments, we find that MEPs are responsive to the interests of their electorate...Read more...

Journal article

American Economic Journal: Macroeconomics:

International friends and enemies

We examine whether, as countries become more economically dependent on a trade partner, they realign politically toward that trade partner. We use network measures of economic exposure to foreign productivity growth deri...Read more...

CEP discussion paper

The distributional consequences of trade: evidence from the Grain Invasion

We examine the distributional consequences of trade using the New World Grain Invasion that occurred in the second half of the 19th century. We use a newly-created dataset on population, employment by sector, property va...Read more...

CEP discussion paper

Valuing consumption services as technology transforms accessibility: Evidence from Beijing

Home delivery reduced the value of cities as locations to access variety in durable consumption goods. Food delivery services (FDS) are doing the same for restaurants. Home-streaming of sports or home-delivered restauran...Read more...