Results

CEP discussion paper

Is data privacy a losing game? Evidence from Apple's App Tracking Transparency (ATT) policy

We study the impact of Apple's App Tracking Transparency (ATT) policy, which requires apps to obtain explicit user permission before cross-app tracking, on the mobile gaming industry. Using SensorTower US data on the top...Read more...

Journal article

Oxford Bulletin of Economics and Statistics :

Intangibles and industry concentration: a cross-country analysis

This paper presents new evidence on the growing scale of large businesses in the United States, Japan and 11 European countries. It documents a broad increase in industry concentration across the majority of countries an...Read more...

Blog

Vox EU:

New approaches to measure (increasing) concentration in Europe

Concentration (the share of a market's output produced by its largest firms) is a key proxy for measuring market competition. This column introduces a cross-country dataset to measure concentration at the industry level ...Read more...

CEP discussion paper

Industry concentration in Europe: trends and methodological insights

Concentration - the share of an industry's output accounted for by its largest firms and a frequently used proxy of competition - has increased in European countries. This paper provides evidence about this development b...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...

Journal article

Comparative Economic Studies:

Political connections, business groups and innovation in Asia

It is acknowledged that Asia?s remarkable economic achievements of the past 50 years build on institutional arrangements very different from the West, including the central role of business groups (BGs) as an organisatio...Read more...

CEP discussion paper

Local and national concentration trends in jobs and sales: the role of structural transformation

National U.S. industrial concentration rose between 1992-2017. Simultaneously, the Herfindhahl Index of local (six-digit-NAICS by county) employment concentration fell. This divergence between national and local employme...Read more...

CEP discussion paper

Non-compete agreements in a rigid labour market: the case of Italy

Non-compete clauses (NCCs) limiting the mobility of workers have been found to be rather widespread in the US, a flexible labour market with large turnover rates and a limited coverage of collective bargaining. This pape...Read more...

Journal article

Industrial and Corporate Change :

Industry concentration in Europe and North America

This paper presents new evidence on industry concentration at both the country and the world-region levels. It calculates country-level industry concentration measures from the novel data representative of the entire fir...Read more...

Journal article

Journal of International Economics:

Technology, market structure and the gains from trade

We study the gains from trade in a model with oligopolistic competition, heterogeneous firms and innovation. Our key finding is that a trade-induced increase in market concentration can be an important source of the gain...Read more...

Journal article

The Quarterly Journal of Economics:

The fall of the labor share and the rise of superstar firms

The fall of labor's share of GDP in the United States and many other countries in recent decades is well documented but its causes remain uncertain. Existing empirical assessments typically rely on industry or macro data...Read more...

CEP discussion paper

Industry concentration in Europe and North America

This report presents new evidence on industry concentration trends in Europe and in North America. It uses two novel data sources: representative firm-level concentration measures from the OECD MultiProd project, and bus...Read more...

CEP discussion paper

Increasing differences between firms: market power and the macro-economy

A rich understanding of macro-economic outcomes requires taking into account the large (and increasing) differences between firms. These differences stem in large part from heterogeneous productivity rooted in managerial...Read more...

CEP discussion paper

The fall of the labor share and the rise of superstar firms

The fall of labor's share of GDP in the United States and many other countries in recent decades is well documented but its causes remain uncertain. Existing empirical assessments typically rely on industry or macro data...Read more...

Journal article

American Economic Review:

Concentrating on the fall of the labor share

The recent fall of labor's share of GDP in numerous countries is well-documented, but its causes are poorly understood. We sketch a "superstar firm" model where industries are increasingly characterized by "winner take m...Read more...

CEP discussion paper

Concentrating on the fall of the labor share

In this paper, we discuss an explanation for the fall in share of labour in GDP based on the rise of ?superstar firms.? If globalization or technological changes advantage the most productive firms in each industry, prod...Read more...

CEP discussion paper

Selection Effects with Heterogeneous Firms

We provide a general characterization of which firms will select alternative ways of serving a market. If and only if firms' maximum profits are supermodular in production and marketaccess costs, more efficient firms wil...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...

SERC/Urban and Spatial Programme Discussion Paper

Labour Pooling as a Source of Agglomeration: An Empirical Investigation

We provide empirical evidence on the role of labour market pooling in determining the spatial concentration of UK manufacturing establishments. This role arises because large concentrations of employment iron out idiosyn...Read more...