Results

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

Spillovers from science

Quantifying spillovers from scientific knowledge to technology is important for understanding the social returns to science and for designing policy. A key challenge is how to credit scientific work with the value genera...Read more...

Journal article

Journal of Law, Economics, and Organization:

Business groups as knowledge-based hierarchies of firms

We provide the first worldwide overview of the patterns of hierarchical differentiation across Business Groups (BGs), highlighting the coexistence of different hierarchical shapes. We show how the different shapes can ar...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...

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...

Journal article

Regional studies:

Can more housing supply improve affordability? A subnational perspective from Portugal

We investigate the impact of housing supply on affordability in rapidly appreciating subnational markets in Portugal. Our spatial econometric model confirms a negative relation between housing stock and prices, yet predi...Read more...

CEP discussion paper

Citizen training and the urban waste footprint

Diverting waste away from and zero waste to landfills are sustainability policy aims of local and national governments around the world, particularly in countries with large waste footprints from rapid consumption growth...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:

Paper tiger? Chinese science and home bias in citations

We investigate the phenomenon of home bias in scientific citations, where researchers disproportionately cite work from their own country. We develop a benchmark for expected citations based on the relative size of count...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

The global effects of carbon border adjustment mechanisms

Climate change poses a collective action problem: individual countries bear the costs of carbon regulation, while the benefits are shared globally. Carbon border adjustment mechanisms (CBAMs), which are currently being i...Read more...

Journal article

American Economic Review:

Fighting climate change: international attitudes toward climate policies

This paper explores global perceptions and understanding of climate change and policies, examining factors that influence support for climate action and the impact of different types of information. We conduct large-scal...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...

CEP discussion paper

Paper tiger? Chinese science and home bias in citations

We investigate the phenomenon of home bias in scientific citations, where researchers disproportionately cite work from their own country. We develop a benchmark for expected citations based on the relative size of count...Read more...

Journal article

The Econometrics Journal:

Design-based identification with formula instruments: a review

Many studies in economics use instruments or treatments that combine a set of exogenous shocks with other predetermined variables via a known formula. Examples include shift-share instruments and measures of social or sp...Read more...

CEP discussion paper

Can firm subsidies spread growth?

How do firms diffuse resources and do they spillover outside headquarter intensive areas? We show R&D subsidies induce French firms to hire new workers, often in new establishments and commuting zones. Using subsidy indu...Read more...

Journal article

Annals of Economics and Statistics:

Proximity of firms to scientific production

Following Bergeaud et al. (2022), we construct a new measure of proximity between industrial sectors and public research laboratories. Using this measure, we explore the underlying network of knowledge linkages between s...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...

CentrePiece article

Do large firms generate positive productivity spillovers?

The potentially negative effects of market concentration on consumers and workers has received much attention, but Mary Amiti, Cedric Duprez, Jozef Konings and John Van Reenen find that big firms can also promote product...Read more...

CEP discussion paper

Proximity of firms to scientific production

Following Bergeaud et al. (2022), we construct a new measure of proximity between industrial sectors and public research laboratories. Using this measure, we explore the underlying network of knowledge linkages between s...Read more...

Journal article

Management Science:

Information spillovers in experience goods competition

Trialing an experience good allows consumers to learn their value for the sampled good and also informs beliefs about their value for similar products. These demand-side information spillovers across products create a re...Read more...

CEP discussion paper

Knowledge spillovers from clean innovation. A tradeoff between growth and climate?

Innovation policy faces a tradeoff between growth and climate objectives when the knowledge spillover externality from clean innovation is low compared to other sectors. To make such a comparison, we use patent data to e...Read more...

CEP discussion paper

FDI and superstar spillovers: evidence from firm-to-firm transactions

Using firm-to-firm transactions, we show that starting to supply a "superstar" firm (large domestic firms, exporters and multinationals) boosts productivity by 8% in the medium-run. Placebos on starting relationships wit...Read more...

CEP discussion paper

Collective bargaining and spillovers in local labor markets

How does collective bargaining affect the broader wage structure? How are such spillovers transmitted? I present a model where firms with wage-setting power that are not covered by collective bargaining agreements, but a...Read more...

CEP discussion paper

From public labs to private firms: magnitude and channels of R&D spillovers

Introducing a new measure of scientific proximity between private firms and public research groups and exploiting a multi-billion euro financing program of academic clusters in France, we provide causal evidence of spill...Read more...

CentrePiece article

Clean technologies for growth and equity

Public investment in developing energy sources that don?t cause climate change is a strategy for economic growth that could also contribute to the UK?s levelling up agenda, says Ralf Martin. His analysis indicates that s...Read more...

Blog

Vox EU:

Knowledge flows from public labs to private firms

How knowledge spillovers operate between academia and private firms remains an open question. Antonin Bergeaud, Arthur Guillouzouic, Emeric Henry and Clement Malgouyres find strong spillovers through the contracting, mob...Read more...

Journal article

American Economic Journal: Applied Economics:

Neighbors' effects on university enrollment

This paper provides causal evidence that close neighbors signigicantly influence potential applicants' decision to attend university. I create a unique dataset combining detailed geographic information and individual edu...Read more...

Journal article

International Journal of Human Computer Studies:

Multitasking while driving: a time use study of commuting knowledge workers to assess current and future uses

Commuting has enormous impact on individuals, families, organizations, and society. Advances in vehicle automation may help workers employ the time spent commuting in productive work-tasks or wellbeing activities. To ach...Read more...

CEP discussion paper

Structural change within versus across firms: evidence from the United States

We document the role of intangible capital in manufacturing firms' substantial contribution to non-manufacturing employment growth from 1977-2019. Exploiting data on firms' "auxiliary" establishments, we develop a novel ...Read more...

CEP discussion paper

How does working from home during Covid-19 affect what managers do? Evidence from time-use studies

We assess how the sudden and widespread shift to working from home during the pandemic impacted how managers allocate time throughout their working day. We analyze the results from an online time-use survey with data on ...Read more...

CEP discussion paper

Multitasking while driving: a time use study of commuting knowledge workers to access current and future uses

Commuting has enormous impact on individuals, families, organizations, and society. Advances in vehicle automation may help workers employ the time spent commuting in productive work-tasks or wellbeing activities. To ach...Read more...

CEP discussion paper

Knowledge spillovers from clean and emerging technologies in the UK

The UK government has committed to increase R&D support for clean technologies in an effort to meet its net-zero target by 2050. The opportunity cost of such programs crucially depends on the value of knowledge spillover...Read more...

Journal article

Research Policy :

No inventor is an island: social connectedness and the geography of knowledge flows in the US

Do informal social ties connecting inventors across distant places promote knowledge flows between them? To measure informal ties, we use a new and direct index of social connectedness of regions based on aggregate Faceb...Read more...

Journal article

Human-Computer Interaction:

How does working from home during Covid-19 affect what managers do? Evidence from time-use studies

In this research we explore the effects of the forced Work-from-home arrangement during the Covid-19 pandemic on managers. We assess how the sudden and widespread shift to working from home during the pandemic impacted h...Read more...

CEP discussion paper

Business groups as knowledge-based hierarchies of firms

Hierarchical differentiation is a cornerstone of the organizing process. In this paper, we do three things. First, exploiting a newly assembled dataset, we provide the first worldwide overview of the patterns of hierarch...Read more...

Journal article

Management Science:

Stars and brokers: knowledge spillovers among medical scientists

This paper estimates the heterogeneity in peer effects among research scientists in terms of network position. I propose a new measure, brokerage degree, that determines the extent to which a scientist depends on a coaut...Read more...

CEP discussion paper

No inventor is an island: social connectedness and the geography of knowledge flows in the US

Do informal social ties connecting inventors across distant places promote knowledge flows between them? To measure informal ties, we use a new and direct index of social connectedness of regions based on aggregate Faceb...Read more...

Blog

VoxEU:

The impact of public employment: evidence from West Germany's post-war capital Bonn

Raising the level of public employment is a frequently used policy instrument to support economically lagging regions. This column evaluates the impact of changes in public employment on private sector activity using the...Read more...

Journal article

Fiscal Studies:

Have R&D spillovers declined in the 21st century?

Slow growth over the last decade has prompted policy attention towards increasing R&D spending, often via the tax system. We examine the impact of R&D on firm performance, both by the firm's own investments and through p...Read more...

CEP discussion paper

The intellectual spoils of war? Defense R&D, productivity and international spillovers

Abstract We examine the impact of government funding for R&D - and defense-related R&D in particular - on privately conducted R&D, and its ultimate effect on productivity growth. We estimate longitudinal models that rel...Read more...

CEP discussion paper

Should I stay or should I go? Neighbors' effects on university enrollment

This paper investigates whether the decision to attend university depends on university enrollment of close neighbors. I create a unique dataset combining detailed geographic information and educational records from diff...Read more...

CEP discussion paper

The best versus the rest: divergence across firms during the global productivity slowdown

We document that labor productivity of the globally most productive firms ? the ?frontier? ? has diverged from all other firms ? the ?rest? ? throughout the 2000s. This divergence remains after controlling for capital in...Read more...

CEP discussion paper

Innovation union: costs and benefits of innovation policy coordination

We build a two-region endogenous growth model to analyse the gains from innovation policy cooperation in an economic union. The model is calibrated to two blocks of the EU: the old and new members. R&D subsidy coordinati...Read more...

CentrePiece article

Threats to scientific progress, past and present

A US boycott of Chinese researchers, as threatened by the Trump administration, could stifle scientific progress and technological innovation. That is the concern of Alessandro Iaria, Carlo Schwarz and Fabian Waldinger, ...Read more...

CentrePiece article

Care homes: effects of the National Living Wage

The National Living Wage, which was introduced in 2016, has substantially raised wages at the bottom of the hourly wage distribution in care homes in England, a sector that employs a large number of low-paid workers. Acc...Read more...

CEP discussion paper

Geography, ties and knowledge flows: evidence from citations in mathematics

Using data on academic citations, career and educational histories of mathematicians, and disaggregated distance data for the world's top 1000 math departments, we study how geography and ties affect knowledge flows amon...Read more...

CEP discussion paper

Have R&D spillovers changed?

This paper revisits the results of Bloom, Schankerman, and Van Reenen (2013) examining the impact of R&D on the performance of US firms, especially through spillovers. We extend their analysis to include an additional 15...Read more...

CEP discussion paper

Changing the structure of minimum wages: firm adjustment and wage spillovers

This paper analyses the economic impact of a significant change to the structure of a minimum wage setting policy. The context is the United Kingdom where government mandated an unexpected change in the structure of mini...Read more...

CEP discussion paper

Frontier knowledge and scientific production: evidence from the collapse of international science

We show that WWI and the subsequent boycott against Central scientists severely interrupted international scientific cooperation. After 1914, citations to recent research from abroad decreased and paper titles became les...Read more...

Journal article

Journal of Urban Economics:

Sorting and agglomeration economies in French economics departments

Are agglomeration and peer effects at stake in academic research? To tackle this question, we study how departments? characteristics affect the quantity and quality of academics? publications in economics in France, cont...Read more...

CEP discussion paper

The diffusion of knowledge via managers' mobility

Better managers and managerial practices lead to better firm performance. Yet, little is known about what happens when managers move across firms. Does a firm hiring a good manager improve its performance? If yes is ther...Read more...

CentrePiece article

High-speed rail in China

Encouraging innovation is a perennial policy goal ? and one common approach is to promote the adoption of foreign technology. Yatang Lin and colleagues examine the impact of China?s technology transfer policy, which has ...Read more...

CEP discussion paper

Colocation and knowledge diffusion: evidence from million dollar plants

This paper uses the entry of large corporations into U.S. counties during the 1980s and 1990s to analyse the effect of plant opening on knowledge spillovers to local inventors. We use a difference-in-differences identifi...Read more...

CEP discussion paper

Local and sectoral import spillovers in Sweden

In this paper I investigate the relevance and explore the nature of import spillovers on the firms' decision to start importing using an exceptionally detailed data set on Swedish firms' imports, at the product-level and...Read more...

Journal article

The Journal of Industrial Economics:

Spillovers in space: does geography matter?

Using U.S. firm level panel data we simultaneously assess the contributions to productivity of three potential sources of research and development spillovers: geographic, technological, and product market ("horizontal")....Read more...

Journal article

Research Policy:

Do inventors talk to strangers? On proximity and collaborative knowledge creation

This paper examines the characteristics of the collaborations between inventors in the United Kingdom (UK) by looking at what types of proximities - geographic, organisational, cognitive, social, and cultural-ethnic - be...Read more...

CEP discussion paper

International technology transfer and domestic innovation: evidence from the high-speed rail sector in China

How does the transfer of advanced technology spur innovation in developing countries? This paper exploits the large-scale introduction of high-speed railway (HSR) technology into China in 2004 as a natural experiment to ...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Spillovers from Immigrant Diversity in Cities

Using comprehensive longitudinal matched employer-employee data for the U.S.,this paper provides new evidence on the relationship between productivity and immigration-spawned urban diversity. Existing empirical work has ...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Moving People with Ideas - Innovation, Inter-regional Mobility and Firm Heterogeneity

This paper looks at the link between inter-regional mobility, innovation and firms? behavioural heterogeneity in their reliance on localised external sources of knowledge. By linking patent data (capturing inventors? int...Read more...

CEP occasional paper

Knowledge-based hierarchies: using organizations to understand the economy

We argue that incorporating the decision of how to organize the acquisition, use, and communication of knowledge into economic models is essential to understand a wide variety of economic phenomena. We survey the literat...Read more...

CentrePiece article

Wikipedia: the value of open content production

Without the `spillover effects? of open content production, the growth in Wikipedia editing activity between 2002 and 2010 would have been halved. That is the central finding of research by Aleksi Aaltonen and Stephan Se...Read more...

CEP discussion paper

Education and health knowledge: evidence from UK compulsory schooling reforms

We investigate if there is a causal link between education and health knowledge using data from the 1984/85 and 1991/92 waves of the UK Health and Lifestyle Survey (HALS). Uniquely, the survey asks respondents what they ...Read more...

CEP discussion paper

Fracking growth

This paper estimates the effect of the shale oil and gas boom in the United States on local economic outcomes. The main source of exogenous variation to be explored is the location of previously unexplored shale deposits...Read more...

CEP discussion paper

Quantifying spillovers in open source content production: evidence from Wikipedia

Using detailed edit-level data over eight years across a large number of articles on Wikipedia, we find evidence for a positive spillover effect in editing activity. Cumulative past contributions, embodied by the current...Read more...

CEP discussion paper

Foreign direct investment and domestic entrepreneurship: blessing or curse?

This paper explores the effects of foreign direct investment, measured by mergers and acquisitions, on domestic entrepreneurial entry. We use a micro-panel of more than two thousand individuals disaggregated by industry ...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Do Inventors Talk to Strangers? On Proximity and Collaborative Knowledge Creation

This paper investigates how physical, organisational, institutional, cognitive, social, and ethnic proximities between inventors shape their collaboration decisions. Using a new panel of UK inventors and a novel identifi...Read more...

CEP discussion paper

What are the Channels for Technology Sourcing? Panel Data Evidence from German Companies

Innovation processes within corporations increasingly tap into international technology sources, yet little is known about the relative contribution of different types of innovation channels. We investigate the effective...Read more...

CEP discussion paper

Brain Drain or Brain Gain? Technology Diffusion and Learning On-the-job

This paper develops a theory of technology transfer when technology is embodied in human capital and learning requires on-the-job communication between managers and workers. Patterns of knowledge diffusion depend on wher...Read more...

SERC/Urban and Spatial Programme Discussion Paper

The Bright Side of Social Capital: How 'Bridging' Makes Italian Provinces More Innovative

Social capital has remained relatively underexplored in innovation literature. Existing studies have failed to reach a consensus on its impact on local innovative performance: some empirical analyses emphasize a positive...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Geographic Concentration and the Temporal Scope of Agglomeration Economics: An Index Decomposition

The paper decomposes a geographical concentration index to examine the temporal scope of a spillover, which is the period of time over which one firm?s activity directly affects the location of other firms? activities. N...Read more...

CEP discussion paper

A Task-Based Approach to Organization: Knowledge, Communication and Structure

We bridge a gap between organizational economics and strategy research by developing a task-based approach to analyze organizational knowledge, process and structure, and deriving testable implications for the relation b...Read more...

CEP discussion paper

Spreading the Word: Geography, Policy and Knowledge Spillovers

Using new data on citations to university patents and scientific publications, we study how geography affects university knowledge spillovers. Citations to patents decline sharply with distance up to about 150 miles and ...Read more...

SERC/Urban and Spatial Programme Discussion Paper

The Impact of University Research on Corporate Patenting

This paper analyses the association between the number of patenting manufacturing firms and the quantity and quality of relevant university research across UK postcode areas. We show that different measures of research `...Read more...

CEP discussion paper

Spillovers in Space: Does Geography Matter?

Using US firm level panel data we simultaneously assess the contributions to productivity of three potential sources of research and development spillovers: geographic, technological, and product market (?horizontal?). T...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Stars and Comets: An Exploration of the Patent Universe

The analysis of patent and citation data has become a popular source of evidence on localized knowledge spillovers and innovation. Nevertheless, an aspect has been overlooked: the patent distribution across inventors is ...Read more...

SERC/Urban and Spatial Programme Discussion Paper

Spillover and Backward Linkage Effects of FDI: Empirical Evidence for the UK

Recent work (including that of the author) on the impact of FDI has been based on microlevel (i.e. firms, establishments or plants) data, since this allows much greater control when examining such issues as whether FDI p...Read more...

CEP discussion paper

Peer Effects in Science - Evidence from the Dismissal of Scientists in Nazi Germany

This paper analyzes peer effects among university scientists. Specifically, it investigates whether the number of peers and their average quality affects the productivity of researchers in physics, chemistry, and mathema...Read more...

CEP discussion paper

Growth and the Quality of Foreign Direct Investment: Is All FDI Equal?

In this paper we distinguish different ?qualities? of FDI to re-examine the relationship between FDI and growth. We use `quality? to mean the effect of a unit of FDI on economic growth. However this is difficult to estab...Read more...

CEP discussion paper

Is Distance Dying at Last? Falling Home Bias in Fixed Effects Models of Patent Citations

We examine the ?home bias? of international knowledge spillovers as measured by the speed of patent citations (i.e. knowledge spreads slowly over international boundaries). We present the first compelling econometric evi...Read more...

CEP discussion paper

An R&D-Based Model of Multi-Sector Growth

We develop a multi-sector general equilibrium model in which productivity growth is driven by the production of sector-specific knowledge. In the model, we find that long run differences in total factor productivity grow...Read more...

CEP discussion paper

Strategic Patenting and Software Innovation

Strategic patenting is widely believed to raise the costs of innovating, especially in industries characterised by cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market...Read more...

CEP discussion paper

Basic Research and Sequential Innovation

The commercial value of basic knowledge depends on the arrival of follow-up developments mostly from outside the boundaries of the inventing firm. Private returns would depend on the extent the inventing firm internalize...Read more...

CEP discussion paper

Knowledge Flow and Sequential Innovation: Implications for Technology Diffusion, R&D and Market Value

It is shown that spillovers can enhance private returns to innovation if they feed back into the dynamic research of the original inventor (Internalized spillovers), but will always reduce private returns, if the origina...Read more...

CEP discussion paper

Identifying Technology Spillovers and Product Market Rivalry

The impact of R&D on growth through spillovers has been a major topic of economic research over the last thirty years. A central problem in the literature is that firm performance is affected by two countervailing ?spill...Read more...

CEP discussion paper

How Special is the Special Relationship? Using the Impact of US R&D Spillovers on UK Firms as a Test of Technology Sourcing

How much does US-based R&D benefit other countries and through what mechanisms? We test the 'technology sourcing' hypothesis that foreign research labs located on US soil tap into US R&D spillovers and improve home count...Read more...

CEP discussion paper

Foreign Ownership and Productivity: New Evidence from the Service Sector and the R&D Lab

This paper examines the relationship between foreign ownership and productivity, paying particular attention to two issues neglected in the existing literature ? the role of multinationals in service sectors and the impo...Read more...

CEP discussion paper

Productivity Convergence and Foreign Ownership at the Establishment Level

This paper investigates whether there is convergence in Total Factor Productivity towards the technological frontier at the establishment level. We find convergence to the frontier is statistically and quantitatively imp...Read more...

CEP discussion paper

Digital Goods and the New Economy

Digital goods are bitstrings, sequences of 0s and 1s, which have economic value. They are distinguished from other goods by five characteristics: digital goods are nonrival, infinitely expansible, discrete, aspatial, and...Read more...

CEP discussion paper

Matching Demand and Supply in a Weightless Economy: Market-Driven Creativity With and Without IPRs

Many cultural products have the same nonrival nature as scientific knowledge. They therefore face identical difficulties in creation and dissemination. One traditional view says market failure is endemic: societies toler...Read more...

CEP discussion paper

Spatial Agglomeration Dynamics

This paper develops a model of economic growth and activity locating endogenously on a 3-dimensional featureless global geography. The same economic forces influence simulataneously growth, convergence, and spatial agglo...Read more...

CEP discussion paper

R&D in Developing Countries: What Should Governments Do?

I consider the implications of recent research for R&D policy in developing countries. Typical new growth models, which assume free entry and no strategic behaviour by R&D producers, are less appropriate for policy guida...Read more...