Marc Melitz

About

Marc Melitz is the David A. Wells Professor of Political Economy at Harvard University. He holds a B.A. from Haverford College (1989), an M.S.B.A. from the Robert Smith School of Business (1992), and a Ph.D. from the University of Michigan (2000). He is a fellow of the Econometric Society and is affiliated with the National Bureau of Economic Research (NBER), the Centre for Economic Policy Research (CEPR), CESifo, and the Kiel Institute for the World Economy. His broad research interests are in international trade and investment. More specifically, he studies producer-level responses to globalization and their implications for aggregate trade and investment patterns. His research has been funded by the Sloan Foundation and by the NSF.

Research topics

• Macroeconomics
• Business
• Monetary economics
• Economics
• Econometrics

Selected publications

• European Firm Concentration and Aggregate Productivity

  Journal of the European Economic Association · 2022-07-23 · 39 citations

  articleOpen accessCorresponding

  Abstract This paper derives a European Herfindahl–Hirschman concentration index from 15 micro-aggregated country datasets. In the last decade, European concentration rose due to a reallocation of economic activity toward large and concentrated industries. Over the same period, productivity gains from an increasing allocative efficiency of the European market accounted for 50% of European productivity growth while markups stayed constant. Using country-industry variation, we show that changes in…

  PublisherOA PDFDOI

• International trade and innovation

  Handbook of international economics · 2022-01-01 · 38 citations

  book-chapterSenior authorCorresponding
  PublisherDOI

• Aggregate-Demand Amplification of Supply Disruptions: The Entry-Exit Multiplier

  2020 · 32 citations

  Senior authorCorresponding

  Due to its impact on nominal firm profits, price rigidity amplifies the response of entry and exit to adverse supply shocks, such as COVID-19. This "entry-exit multiplier" triggers substantial magnification of the welfare losses due to negative supply shocks-especially when wages are also rigid. This is in stark contrast to the benchmark New Keynesian model (NK), which predicts a positive output gap in response to that same shock under the same monetary policy. Endogenous entry-exit thus radical…

  PublisherDOI

• The Laffer curve for rules of origin

  Journal of International Economics · 2024-03-01 · 14 citations

  articleOpen accessSenior author
  PublisherOA PDFDOI

• Opposing Firm-Level Responses to the China Shock: Output Competition versus Input Supply

  American Economic Journal Economic Policy · 2024-05-01 · 12 citations

  articleOpen access

  We decompose the “China shock” into two components that induce different adjustments for firms exposed to Chinese exports: an output shock affecting firms selling goods that compete with similar imported Chinese goods, and an input supply shock affecting firms using inputs similar to the imported Chinese goods. Combining French accounting, customs, and patent information at the firm level, we show that the output shock is detrimental to firms’ sales, employment, and innovation. Moreover, this ne…

  PublisherOA PDFDOI

Frequent coauthors

• Fabio Ghironi

  University of Washington

  289 shared

• Florin Bilbiie

  University of Cambridge

  205 shared

• Thierry Mayer

  Banque de France

  130 shared

• Gianmarco I.P. Ottaviano

  Bocconi University

  112 shared

• Stephen J. Redding

  43 shared

• Philippe Aghion

  Collège de France

  29 shared

• Elhanan Helpman

  27 shared

• Alejandro Cuñat

  Vienna University of Economics and Business

  22 shared

Education

• Ph.D., Economics

  Harvard University

  1996

• B.A., Economics

  University of California, Berkeley

  1991

Awards & honors

• Fellow of the Econometric Society
• Sloan Foundation funding
• NSF funding

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