Results

Blog

VoxEU:

Firms slice up global production to protect their knowhow

Imitation is a first-order concern for enterprises operating global production processes. Firms routinely source knowledge-intensive inputs from many countries, including those with weak intellectual property laws. This ...Read more...

CEP discussion paper

Female-targeted hiring subsidies, firm learning, and women?s employment

Women often struggle to re-enter employment after career breaks, possibly because employers are uncertain about their productivity. We study whether hiring subsidies help firms overcome this uncertainty and hire from thi...Read more...

CEP discussion paper

Defense promotion and industrial development

Major economies are rearming, and rearmament is itself industrial policy. I ask whether defense promotion?especially innovation policy?can drive industrial development beyond the defense sector. I synthesize evidence on ...Read more...

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...

CEP discussion paper

Employer market power: models and methods

It is now widely recognized that employers hold some wage-setting power over workers, and several recent reviews cover the resulting surge of research on monopsony. We take a high-level view, introducing the idea of the ...Read more...

CentrePiece article

Polarisation is not a myth

Political views shape the creation and spread of technology...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...

CEP discussion paper

Skills, not scale: GenAI and technology adoption

Do the determinants of technology adoption depend on technological architecture? Using administrative data on Turkish firms from 2021 to 2024, we compare the adoption of traditional and generative artificial intelligence...Read more...

CEP discussion paper

Evading the ban: smuggling, pollution, and the welfare effects of China?s waste import restrictions

While import restrictions are increasingly deployed to achieve non-trade objectives such as environmental protection, they often create distortions and leakage through illicit trade. We examine this trade-off in the cont...Read more...

CEP discussion paper

Gender equality and innovation: evidence from UK companies

We investigate the effect of intra-firm gender disparities on innovation using a unique longitudinal dataset of UK companies from 1996 to 2019. Utilising within-industry and within-firm variation, as well as an instrumen...Read more...

CEP report

Catalysing climate resilience

The UK is experiencing increasing impacts from climate change, including more frequent and severe floods, heatwaves and storms. It needs to prepare more for these impacts. It also needs to honour its pledge to support cl...Read more...

CEP discussion paper

AI unbound: digital infrastructure, AI adoption, and firm performance

We study how digital infrastructure relaxes constraints on the diffusion and economic impact of artificial intelligence (AI). Using administrative data and a nationally representative enterprise survey from Turkey (2021?...Read more...

Blog

Vox EU:

Measuring national technological trajectories using 200 years of international patent data

Innovation underpins sustained long-run economic growth, yet measuring technological success is challenging. This column compiles two centuries of patent data and leverages filings in multiple patent offices to document ...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...

CEP discussion paper

Technology spillovers, diffusion and rivalry in firm networks

We examine how upstream firms' technology adoption affects the performance and adoption decisions of downstream partners. Using business-to-business data with administrative records on advanced technology adoption, we fi...Read more...

CEP discussion paper

GRAPH-EE: building employer - employee panels from a knowledge graph and company microdata

Linked employer-employee datasets are a hugely powerful tool for researchers and policymakers across the social sciences. However, access to such data is typically highly restricted and the quality of data varies substan...Read more...

CentrePiece article

Philippe Aghion: explaining sustained growth through creative destruction

How the study of innovation and competition has been transformed....Read more...

Journal article

Journal of the European Economic Association:

Innovation union: costs and benefits of innovation policy coordination

What is the scope for international cooperation in innovation policy in economies closely integrated via trade? We address this question by building a two-region innovation-driven growth model with endogenous technology ...Read more...

CEP discussion paper

Mapping technological trajectories: evidence from two centuries of patent data

We introduce a methodology to measure cross-country trends in innovation capability - "technological trajectories" and implement this on a new rich dataset covering patents between 1836 and 2016 across multiple countries...Read more...

Journal article

Energy Economics:

Firm climate investment: a glass half-full

The green transition will require large investments from firms, yet little is known about the scale and drivers of climate-related capital expenditure across the UK economy. To address this gap, we draw on a large, repre...Read more...

Journal article

Transactions of the Institute of British Geographers:

Finding stars: mapping the geography of the world's scientific elites

This paper presents the first systematic city-level mapping of global scientific talent, analysing the top 200,000 star scientists across 3635 cities worldwide annually between 2019 and 2023. We use a novel Knowledge Gen...Read more...

Blog

East Asia Forum:

Rethinking industrial policy for resilience, sustainability and growth

When well designed and transparent, industrial policy can drive inclusive growth and resilience. When poorly governed, it risks inefficiency, capture and stagnation, writes Chiara Criscuolo....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...

CEP discussion paper

The Economics of climate innovation: technology, climate policy, and the clean energy transition

We examine the economics of climate innovation and its role in the clean technology transition. It outlines the incentives, market failures, and policy levers that shape the development and diffusion of clean technologie...Read more...

CEP discussion paper

When do employers share? Rent sharing, monopsony and minimum wages

When firm productivity or product demand rises, workers typically share in the gains through higher wages or expanded employment. We show that for firms under monopsony with a binding minimum wage, this link from firm ga...Read more...

Journal article

Research Policy:

Mapping digital businesses with big data: some early findings from the UK

Governments around the world want to develop their ICT industries. Researchers and policymakers thus need a clear picture of digital businesses, but conventional datasets and typologies tend to lag real-world change. We ...Read more...

Blog

European Economic Association:

2025 Nobel Laureate: Philippe Aghion

John Van Reenen writes about the profound influence of Nobel laureate Philippe Aghion's work not only on growth and industrial organisation, but also on fields as diverse as trade, labour, taxation, the environment, poli...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...

Blog

What Works Centre for Local Economic Growth:

Understanding the drivers of productivity: Innovation

This blog is the third in our new series on the drivers of productivity. The drivers of productivity include skills, capital, innovation, enterprise and competition, and land. This blog focuses on innovation, and complem...Read more...

Chapter

Immigration, diversity and innovation in cities and regions

in A Research Agenda for Migration and Innovation

This chapter investigates the interplay between immigrant diversity and innovation, emphasizing the urban and regional dimensions where these effects are most pronounced. Cities and urban areas are pivotal to the generat...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...

Journal article

Journal of Development Economics:

The firm-pay gender gap and formal sector churn over the life cycle

We find that women sorting into lower paying firms explains nearly half of the gender pay gap in South Africa. Using matched employer-employee panel data covering the universe of formal workers, we show sorting varies co...Read more...

Journal article

Journal of Labor Economics:

Technological change and domestic outsourcing

Domestic outsourcing has grown substantially in developed countries over the past two decades. This paper addresses the question of the technological drivers of this phenomenon by studying the impact of the staggered dif...Read more...

CEP discussion paper

On the shoulders of giants: financial spillovers in innovation networks

Do markets price knowledge spillovers? We show that patent grants influence the stock returns of firms that are connected through technological knowledge dependencies. Using directed patent citations among publicly liste...Read more...

CEP discussion paper

Polarized Technologies

We study whether, and how, societal views about which problems are most important or worth solving are reflected in the direction of technological progress. Compared to Republican inventors, Democrats are more likely to ...Read more...

Journal article

American Economic Review:

Monopsony and employer misoptimization explain why wages bunch at round numbers

We show that administrative hourly wage data exhibit considerable bunching at round numbers. We run two experiments randomizing wages around $0.10 and $1.00 to experimentally measure left-digit bias for identical tasks o...Read more...

Journal article

Economics Letters:

Do larger firms exert more market power? Markups and markdowns along the size distribution

Combining financial statements with firm-level product prices, we find that larger firms exhibit lower markups, although they are overcompensated by substantially higher wage markdowns. We explain our divergence from pri...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...

CentrePiece article

Return innovation: how migration shapes diffusion of new technologies

Novel products, processes and technologies are important drivers of economic growth. Davide Coluccia and Gaia Dossi show how migrants from Britain to the United States in the late 19th and early 20th century not only too...Read more...

External report

Strengthening Monitoring and Evaluation of Innovation Programs in the EU : Creating Ecosystems for Innovation in a Post-Coal Region Evidence from an RCT in the Czech Republic (English)

The Usti nad Labem and Karlovy Vary regions face persistent structural challenges as they transition away from coal-based industries. In response to these challenges, national and EU institutions have launched a coordina...Read more...

Journal article

Oxford Research Encyclopedia of Economics and Finance:

Returns to adult learning

A common starting point in understanding investments in learning is that people participate in education when the life-cycle returns to education outweigh its costs. Since people will reap the higher wages associated wit...Read more...

CEP discussion paper

Estimating labour market power: the long and short of it

This paper combines two empirical traditions in the study of employer monopsony power. One tradition estimates static firm labour supply elasticities, while the other focuses on labour market flows, estimating separation...Read more...

Blog

Vox EU:

Fully remote work expands recruitment and boosts productivity

The Covid-19 pandemic sparked a large and lasting shift to remote work. This column draws on detailed administrative data from a major call centre in Turkiye to show that a permanent shift to fully remote work can expand...Read more...

CEP discussion paper

Creative destruction through innovation bursts

In theories of creative destruction, product innovation is a key driver of aggregate growth. In this paper, we confront the predictions of these theories about product dynamics with empirical patterns in product-level da...Read more...

CEP discussion paper

Firm-level technology adoption in times of crisis

We investigate the diffusion of frontier technologies across German firms before and during the Covid-19 crisis. Our analysis tracks the nature, timing, and pandemic-related motivations behind technology investments, usi...Read more...

Blog

LSE Politics and Policy:

AI for Good - impact through ethical technology

Artificial Intelligence is set to change our lives, but there are many doubts about whether this will be for the better. By looking at a case of non-surveillance application of AI used to help with crowd management, Tom ...Read more...

CEP discussion paper

Firm dynamics and growth with soft budget constraints

We develop a model of endogenous growth and firm dynamics with soft budget constraints, where firms differ in their innovation speed and slower firms need additional financing in order to eventually innovate. As creditor...Read more...

Blog

LSE Politics and Policy:

How emigration shapes the diffusion of new technologies

A central driver of economic growth is new technology. Gaia Dossi and Davide Coluccia show how migrants from Britain to the US in the late 19th and early 20th century not only brought new ideas with them but helped US in...Read more...

Journal article

The Economic Journal:

Service offshoring and export experience

Service inputs significantly influence export costs and firm internationalisation. A new dataset on French firms? participation in global value chains reveals that experienced exporters are more likely to source services...Read more...

Blog

MIT Sloan Management Review:

Reskilling the Workforce With AI: Harvard Business School's Raffaella Sadun (podcast)

Harvard Business School professor Raffaella Sadun's research has historically focused on digital reskilling. Now, rapid technological changes - like AI - are reshaping the nature of work. Raffaella's research has explore...Read more...

Blog

Vox EU:

The price of power: Why rising markups hurt innovation and widen inequality

Over the past four decades, the US has seen rising market power, slowing productivity growth, and deepening wealth inequality. This column explores how declining competition may be the common culprit. Weak competition le...Read more...

Journal article

The Review of Economics and Statistics :

The value of managers' export experience: lessons from the Angolan civil war

We investigate how managers help firms grow by entering a new export market. We conduct an event study on the decision to export to Angola using data on Portuguese firms and workers. We evaluate the impact of the presenc...Read more...

Journal article

Journal of Environmental Economics and Management:

Air pollution and innovation

If air pollution harms innovation - and therefore future productivity - existing assessments of its economic cost are incomplete. We estimate the effect of fine particulate matter concentration on inventive output in 977...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...

Blog

IMF Finance and Development magazine :

Innovation's Unseen Frontier

Notwithstanding Plato's 2,400-year-old proverb, necessity alone is not the mother of invention. It also requires opportunity. An individual's likelihood of becoming an innovator reflects parental background in terms of i...Read more...

Journal article

American Economic Review: Insights:

Induced innovation, inventors, and the energy transition

We study how individual inventors respond to incentives to work on ?clean? electricity technologies. Using natural gas price variation, we estimate output and entry elasticities of inventors and measure the medium-term i...Read more...

Blog

LSE Impact of Social Sciences:

The next innovation revolution should be democratisation

Innovators are most likely to be men from privileged backgrounds. Xavier Jaravel argues that democratisation and widening of access to innovative careers worldwide is key to boosting long-term growth and addressing today...Read more...

CEP discussion paper

Migration and innovation: the impact of East German investors on West Germany's technological development

We investigate the causal relationship between inventor migration and regional innovation in the context of the large-scale migration shock from East to West Germany between World War II and the construction of the Berli...Read more...

Blog

Vox EU:

Technology spillovers, diffusion, and rivalry in firm networks

Quantifying technology adoption, spillovers, and diffusion across firms is crucial for understanding industry dynamics, and in turn countries' growth. This column combines firm-level input-output VAT data from Turkey wit...Read more...

CEP discussion paper

Return innovation: the knowledge spillovers of the British migration to the United States, 1870-1940

This paper documents that out-migration promotes the diffusion of innovation from the country of destination to the country of origin of migrants. Between 1870 and 1940, nearly four million British immigrants settled in ...Read more...

Journal article

Industrial and Corporate Change:

More or the same? Radical, disruptive, discontinuous, and breakthrough innovation

This paper addresses the conceptual ambiguity in the literature on exceptional innovations, labeled ?radical,? ?disruptive,? ?breakthrough,? or ?discontinuous.? A bibliometric analysis of 4407 articles shows that differe...Read more...

Blog

Vox EU:

Redirecting AI: Privacy regulation and the future of artificial intelligence

Some artificial intelligence technologies are more data intensive than others. This column examines how data privacy regulation shaped the trajectory of AI innovation across countries, looking at patent applications from...Read more...

CEP discussion paper

Shock therapy for clean innovation: within-firm reallocation of R&D investments

We analyze how a major negative shock to the producers of fossil fuels may lead to a shift from dirty to clean R&D along the supply chain. First, we develop a theoretical framework of directed technical change, showing t...Read more...

CEP discussion paper

New venture creation: innovativeness, speed-to-breakeven and revenue tradeoffs

We present a Schumpeterian growth model with new venture creation, under uncertainty, which explains the tradeoff between speed-to-breakeven, revenue-at-breakeven and relates this to the level of innovation. We then expl...Read more...

Blog

Vox EU:

Distance from innovation is a barrier to the adoption of artificial intelligence

While distance may seem unimportant in the face of technological progress in transportation and communication, several studies have found that distance is a barrier to the diffusion of inventive activity and technology a...Read more...

Blog

Project Syndicate:

Can Europe create an innovation economy?

After the 30 "glorious" years of economic growth following World War II, European policymakers failed to adopt the institutions and policies to promote disruptive innovation. Now, Europe urgently needs to adopt a new eco...Read more...

Journal article

Journal of Public Economics:

Organizational capacity and profit shifting

Good organizational capacity drives productivity and potential taxable profits, but may also enable multinationals (MNEs) to more efficiently re-allocate profits across tax jurisdictions, lowering actual taxable profits....Read more...

Blog

Vox EU:

Global environmental cooperation and innovation

In the ongoing debate on climate change, one of the most pressing challenges is fostering effective international cooperation. This column examines the success of the 1987 'Montreal Protocol' in phasing out harmful chlor...Read more...

Blog

POIDcast :

Financing innovation

In this episode, our guest is Sabrina Howell who is a Professor of Finance at the NYU Stern. We talk about how to finance innovations, fintechs, venture capitalists, private and public equity, and the role of government!...Read more...

Journal article

Journal of the Association of Environmental and Resource Economists,:

Management practices and climate policy in China

We investigate how management quality moderates the impact of carbon pricing on Chinese firms. Based on interviews with managers and lead engineers at manufacturing firms in Hubei and Beijing, we construct a novel index ...Read more...

Blog

Vox EU:

The speed of firm response to inflation

Firm inflation expectations are a key driver of future price growth. This column uses a large economy-wide business survey to understand the response of firms to monthly CPI inflation releases in the UK. Firms' CPI infla...Read more...

CEP discussion paper

Brexit and investment

In 2016, the UK voted to leave the European Union and growth in UK manufacturing investment ground to a halt. This paper uses administrative trade data to investigate the causal relationship between these events. We expl...Read more...

Journal article

Oxford Open Economics:

Innovation and inequalities

Innovation is a key source of sustainable growth, but it can affect inequalities in many ways?increasing some inequalities and decreasing others. The impact of any particular innovation on inequalities will depend import...Read more...

CEP discussion paper

Disaster management

Climate change is making natural disasters more frequent, yet little is known about the capacity of firms to withstand such disasters and adapt to their increased frequency. We examine this issue using the latest wave of...Read more...

Journal article

The Review of Economics and Statistics:

The heterogeneous impact of market size on innovation: evidence from French firm-level exports

We analyze how demand conditions faced by a firm in its export markets affect its innovation decisions. We exploit exogenous firm-level export demand shocks and find that firms respond by patenting more; furthermore, thi...Read more...

CEP discussion paper

Accounting for the evolution of China's production and trade patterns

This paper studies the evolution of China's production and trade patterns during its integration into the global economy. We document and explain new facts concerning changes in production and exports at the industry and...Read more...

CEP discussion paper

Business groups, strategic acquisitions and innovation

We build a novel worldwide database merging information on patent-citations of firms paired with information on firms' affiliation to Business Groups (BGs). We exploit these data to document how BGs appropriate knowledge...Read more...

Blog

INSEAD Knowledge:

Consumers' green conscience fosters clean innovation

Alexandra Roulet and Philippe Aghion explain how consumers' green conscience can foster clean innovation and provide tips for how companies can reach green goals in a highly competitive market....Read more...

CEP discussion paper

Leaving the global playing field through optimal non-discriminatory corporate taxes and subsidies

Due to markup distortions, in international trade models with monopolistic competition and heterogeneous firms the market equilibrium is inefficient unless demand exhibits constant elasticity of substitution. When it doe...Read more...

Blog

POIDcast :

More inclusive, more innovative!

We talk about Marx, Schumpeter, creative destruction, capital accumulation, history, middle income countries, political economy, and more....Read more...

Blog

LSE USAPP:

Book Review: Innovation for the Masses: How to Share the Benefits of the High-Tech Economy by Neil Lee

In 'Innovation for the Masses: How to Share the Benefits of the High-Tech Economy' Neil Lee proposes abandoning the Silicon Valley-style innovation hub, which concentrates its wealth, for alternative, more equitable mode...Read more...

Journal article

Journal of Cleaner Production:

The interplay between innovation, standards and regulation in a globalising economy

To examine the different roles of regulation and standards in the age of globalisation, we hypothesize and investigate the relation of regulation and national and international standards on the one hand with innovation i...Read more...

Journal article

The Review of Economic Studies:

Using disasters to estimate the impact of uncertainty

Uncertainty rises in recessions and falls in booms. But what is the causal relationship? We construct cross-country panel data on stock market returns to proxy for first- and second-moment shocks and instrument these wit...Read more...

Blog

What Works Centre for Local Economic Growth:

Lessons for business support schemes from a large RCT in the UK

Productivity in the UK is stagnant and improving firm performance a key policy objective. Almost a decade ago, the UK government undertook an ambitious randomised control trial - the Growth Vouchers Programme - which pro...Read more...

CEP discussion paper

Firms in product space: adoption, growth and competition

Which products are potentially produced together? When demand for a product increases, which firms will supply it? Using multi-product production patterns within and across firms, we recover a continuous cost based dista...Read more...

Journal article

Journal of the European Economic Association:

Come together: firm boundaries and delegation

We jointly study firm boundaries and the allocation of decision rights within them by confronting an incomplete-contracts model with data on vertical integration and delegation for thousands of firms around the world. In...Read more...

Journal article

American Economic Journal: Economic Policy :

Local retail prices, product variety, and neighborhood change

We study how local grocery markets within a city are affected by changes in housing markets. Our empirical strategy exploits a shift in the spatial distribution of construction activity induced by a large-scale, place-ba...Read more...

CEP discussion paper

Does subsidising business advice improve firm performance? Evidence from a large RCT

We evaluate the impact of the UK's Growth Vouchers Programme, which offered subsidised business advice to 15,207 randomly selected small and medium size enterprises. Using administrative and survey data, we show that the...Read more...

CEP discussion paper

Global managers, local workers: wage setting inside a multinational firm

How are wages set within a multinational firm? Combining cross-country data on wages and labor regulations with personnel records of a large multinational firm, I find that wage setting depends on the rank of the employe...Read more...

Book

Innovation for the Masses
How to Share the Benefits of the High-Tech Economy

From San Francisco to Shanghai, many of the world's most innovative places are highly unequal, with the benefits going to a small few. Rather than simply asking how we can create more high-tech cities and nations, Innova...Read more...

Journal article

AEA Papers and Proceedings:

Parenthood and academic career trajectories

Women continue to be underrepresented in the field of economics, especially among permanent faculty. As parenthood is an important driver of gender inequality in the labor market, we study the impact of children on the a...Read more...

Journal article

Research Policy:

A new dataset to study a century of innovation in Europe and in the US

Innovation is an important driver of potential growth but quantitative evidence on the dynamics of innovative activities in the long-run are hardly documented due to the lack of data, especially in Europe. In this paper,...Read more...

CEP discussion paper

Political ideology and innovation

We study the role of political ideology for a critical group of economic agents: inventors. We document that, in "politically polarizing" fields, inventors patent innovations aligned with their political beliefs. We cons...Read more...

Journal article

The Review of Economics and Statistics :

Induced innovation and international environmental agreements: evidence from the ozone regime

This paper revisits one of the rare success stories in global environmental cooperation: the Montreal Protocol and the phase-out of ozone-depleting substances. I show that the protocol increased science and innovation on...Read more...

CEP discussion paper

Rethinking revealed comparative advantage with micro and macro data

The Balassa's index of revealed comparative advantage does not necessarily reveal Ricardian comparative advantage. We propose an alternative sufficient statistics approach based on a quantitative standard trade model inc...Read more...

CEP discussion paper

Urban-biased structural change

Using firm-level data from France, we document that the shift of economic activity from manufacturing to services over the last few decades has been urban-biased: structural change has been more pronounced in areas with ...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...

CEP discussion paper

Exporting ideas: knowledge flows from expanding trade in goods

We examine the effect of entry by French firms into a new export market on the dynamics of their patents' citations received from that destination. Applying a difference-in-differences identification strategy with a stag...Read more...

CEP discussion paper

Trade, innovation and optimal patent protection

This paper provides a first comprehensive quantitative analysis of optimal patent policy in the global economy. We introduce a new framework, which combines trade and growth theory into a tractable tool for quantitative ...Read more...

Blog

Productivity Puzzles:

Why does the UK do so well on the Global Innovation Index? (Podcast)

How do we measure innovation and compare it across countries? And how can it be that the UK is doing so well as an innovation nation, while we seem to be underperforming on productivity?...Read more...