Results

Journal article

The Economic Journal:

Globalization and conflicts: the good, the bad, and the ugly of corporations in Africa

Using a novel georeferenced datataset on the affiliates and headquarters of multinational enterprises between 2007 and 2018 together with georeferenced conflict data for the African continent, this work establishes a cau...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...

Journal article

American Economic Review :

The impact of regulation on innovation

We present a framework that can be used to assess the equilibrium impact of regulation on endogenous innovation with heterogeneous firms. We implement this model using French firm-level panel data, where there is a sharp...Read more...

Journal article

The Economic Journal:

Unraveling firms: demand, productivity and markups heterogeneity

We develop a novel framework that simultaneously allows recovering heterogeneity in demand, quantity TFP and markups across firms while leaving the correlation between the three dimensions unrestricted. We accomplish thi...Read more...

Journal article

Journal of Political Economy:

The comparative advantage of firms

Resource-based theories propose that firms grow by diversifying into products that use common capabilities. We provide evidence for common-input capabilities, using a policy that removed entry barriers in input markets t...Read more...

CEP discussion paper

Data-intensive innovation and the State: evidence from AI firms in China

Artificial intelligence (AI) innovation is data-intensive. States have historically collected large amounts of data, which is now being used by AI firms. Gathering comprehensive information on firms and government procur...Read more...

CEP discussion paper

The comparative advantage of firms

Resource based theories propose that firms grow by diversifying into products which use common capabilities. We provide evidence for common input capabilities using a policy that removed entry barriers in input markets t...Read more...

Journal article

Review of Economic Studies:

Carry-along trade

Large multi-product firms dominate international trade flows. This paper documents new facts about multi-product manufacturing exporters that are not easily reconciled with existing multi-product models. Using novel link...Read more...

Journal article

The Economic Journal:

Take what you can: property rights, contestability and conflict

Weak property rights are strongly associated with underdevelopment, low state capacity and civil conflict. In economic models of conflict, outbreaks of violence require a prize that is both valuable and contestable. This...Read more...

Journal article

American Economic Review:

Monopolistic competition and optimum product selection

We provide novel insights on the decentralization of optimal outcomes under monopolistic competition with nonseparable utility, variable demand elasticity, and endogenous firm heterogeneity. Relative to the unconstrained...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...

Manpower Human Resource Lab paper

Are There Day of the Week Productivity Effects?

Despite much debate about the productivity effects of flexible working and the regulation of working hours little attention is paid to temporal variance in productivity. This paper explains why one might expect to see pr...Read more...

CEP discussion paper

Multi-Product Firms and Trade Liberalization

This paper develops a general equilibrium model of multi-product firms and analyzes their behavior during trade liberalization. Firm productivity in a given product is modeled as a combination of firm-level ?ability? and...Read more...

CEP discussion paper

A Test Between Unemployment Theories Using Matching Data

This paper tests whether aggregate matching is consistent with unemployment being mainly due to search frictions or due to job queues. Using U.K. data and correcting for temporal aggregation bias, estimates of the random...Read more...