CV


SICKCL Workshop II

KCL Trade & Development Workshop (2023)

SICKCL Workshop I

KCL Trade & Development Workshop (2022)


Photos


PhD Students:

Elodie Andrieu (PSE)

Nick Khaw

† Meng Yu Ngov

† Lei Yu


Three Teaching Award Nominations 2020-21

A professor with such an outstanding style!


Graduate Prep (UG)

Panel of Former Students




Current Research Projects


Firms in Product Space: Adoption, Growth, and Competition

(with Luca Macedoni and Vlad Tyazhelnikov)†† †

Which products are potentially produced together? Can any firm eventually supply any new demand?†† Using multi-product production costs within and across firms, we recover a continuous cost based distance between products and firms. Product distance implies a product adoption path, with distance decreasing adoption frequency.† When export demand induces domestic product adoption, closer firms provide this supply.† Counterfactual production costs imply measures of Revenue Potential and Competition Potential. These predict firm sales growth, scope growth and core focus.† If all firms produced all products linked by co-production, consumer welfare would increase by 10-30%.


Multi-establishment Firm Structure, Subsidies and Spillovers

(with Elodie Andrieu)

How do firms distribute resources internally, and does this result in spillovers far from headquarters?† We describe French Multiple Establishment firm structure and show subsidies induce firms to hire new workers, mainly in new establishments and often in new commuting zones, with little evidence of reallocation.† The most hiring responsive occupations are techies and support workers in line with R&D targeting.† We estimate an employment spillover elasticity of .12 at the commuting zone level within industry and spillovers on the number of establishments, but weak effects in the commuting zone. Dispersed industries have half this elasticity and concentrated industries twice this elasticity. While subsidies may be given to headquarters in high-skill advanced areas, firms redistribute employment and spillovers more broadly.

† †††† †††† ††† ††† ††† ††† ††† ††† ††† †††
Publications

The Comparative Advantage of Firms

(Appendix)

(with Johannes Boehm, Swati Dhingra)† †† ††† ††† †††† J of Political Economy (Lead Article)


Monopolistic Competition and Optimum Product Diversity Under Firm Heterogeneity
††† ††† ††† †††

Awarded the Chair Jacquemin Prize ††††††††††††††††††††† J of Political Economy

(with Swati Dhingra)


Learning About the Prospects for Mobility:

Economic and Political Dynamics Following Fundamental Policy Reform

(with Michael Carter)† ††† ††† ††† ††††††††††††††††††††††††††††††††† J of Public Economics† †††† ††† ††† ††† ††† ††† ††† ††† ††††

Firm Productivity Differences from Factor Markets

(with Wenya Cheng)†† ††† †††† †††† ††† ††† ††† ††† ††† ††† ††† ††† J of Industrial Economics



Efficiency in Large Markets with Firm Heterogeniety
††† ††† ††† †††

(with Swati Dhingra)†††††††††††††††††††††††††††††††††††††††††††††††† Research in Economics


Product Diversification in Indian Manufacturing
††† ††† ††† †††

(with Johannes Boehm, Swati Dhingra)†††††††††††††††††† in New Developments in Global Sourcing



"Resting" Projects

Benfordís Law, Families of Distributions, and a Test Basis

††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† † CEP Discussion Paper No 1291

The Political Economy of Inclusive Growth

(with Michael Carter) ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† ††† †††


Is Skill Dispersion a Source of Productivity and Exporting in Developing Countries?