Johan HOMBERT

Professor

Finance

hombert@hec.fr http://appli8.hec.fr/hombert/
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Biography

Johan Hombert is a Professor of Finance at HEC Paris. He graduated from Ecole Polytechnique in Paris and holds a PhD in Economics from the Toulouse School of Economics. His research interests are life insurance, and the financing of entrepreneurship and innovation. His research has been published in the top finance and economics journal such as American Economic Review, Journal of Finance, Review of Financial Studies, Journal of Financial of Economics, Review of Financial Studies. In 2021, he was awarded a prestigious European Research Council Consolidator Grant to study long-term savings and European life insurers.

Scientific articles

Can Risk Be Shared across Investor Cohorts? Evidence from a Popular Savings Product

Review of Financial Studies, December 2022, vol. 35, n° 12, pp 5387–5437, (in coll. with V. LYONNET)

Incentive constrained risk sharing, segmentation and asset pricing

American Economic Review, November 2021, vol. 111, n° 11, pp 3575-3610, (in coll. with B. BIAIS, P.-O. WEILL)

Can Unemployment Insurance Spur Entrepreneurial Activity?

Journal of Finance, June 2020, vol. 75, n° 3, pp 1247-1285, (in coll. with A. SCHOAR, D. A. SRAER, D. THESMAR)

Anticompetitive Vertical Merger Waves

Journal of Industrial Economics, September-December 2019, vol. 67, n° 3-4, pp 484-514, (in coll. with J. POUYET, N. SCHUTZ)

The competitive effect of a bank megamerger on credit supply

Journal of Banking and Finance, aout 2018, vol. 93, pp 151-161, (in coll. with H. FRAISSE, M. LE)

Can Innovation Help U.S. Manufacturing Firms Escape Import Competition from China?

Journal of Finance, October 2018, vol. 73, n° 5, pp 2003-2039, (in coll. with A. MATRAY)

The Real Effects of Lending Relationships on Innovative Firms and Inventor Mobility

Review of Financial Studies, July 2017, vol. 30, n° 7, pp 2413–2445, (in coll. with A. MATRAY)

News Trading and Speed

Journal of Finance, February 2016, vol. 71, n° 1, pp 335-382, (in coll. with T. FOUCAULT, I. ROSU)

Overcoming Limits of Arbitrage: Theory and Evidence

Journal of Financial Economics, January 2014, vol. 111, n° 1, pp 26-44, (in coll. with David THESMAR)

Equilibrium Pricing and Trading Volume under Preference Uncertainty

Review of Economic Studies, October 2014, vol. 81, n° 4, pp 1401-1437, (in coll. with B. BIAIS, P. O. WEILL)

Working papers

The Real Effects of Valuation Mistakes: Estimates from Mergers and Acquisitions

Cahier de Recherche , 2025

Inter-cohort risk sharing with long-term guarantees: Evidence from German participating contracts

Deutsche Bundesbank Discussion Paper Series , 2021

The Long-Term Consequences of the Tech Bubble on Skilled Workers' Earnings

Cahier de Recherche du Groupe HEC , 2018

Incentive Constrained Risk Sharing, Segmentation, and Asset Pricing

Cahier de Recherche du Groupe HEC , 2017

Intergenerational Risk Sharing in Life Insurance: Evidence from France

Cahier de Recherche du Groupe HEC , 2017

The Competitive Effect of a Bank Megamerger on Credit Supply

Cahier de Recherche du Groupe HEC , 2016

Can Innovation Help U.S. Manufacturing Firms Escape Import Competition from China?

Cahier de Recherche du Groupe HEC , 2015

Can Unemployment Insurance Spur Entrepreneurial Activity? Evidence from France

Cahier de Recherche du Groupe HEC , 2013

Trading and liquidity with limited cognition

Mimeo , 2010

Limits of Limits of Arbitrage: Theory and Evidence

Mimeo , 2009

Scientific articles

Can Risk Be Shared across Investor Cohorts? Evidence from a Popular Savings Product

Review of Financial Studies, December 2022, vol. 35, n° 12, pp 5387–5437, (in coll. with V. LYONNET)

Incentive constrained risk sharing, segmentation and asset pricing

American Economic Review, November 2021, vol. 111, n° 11, pp 3575-3610, (in coll. with B. BIAIS, P.-O. WEILL)

Can Unemployment Insurance Spur Entrepreneurial Activity?

Journal of Finance, June 2020, vol. 75, n° 3, pp 1247-1285, (in coll. with A. SCHOAR, D. A. SRAER, D. THESMAR)

Anticompetitive Vertical Merger Waves

Journal of Industrial Economics, September-December 2019, vol. 67, n° 3-4, pp 484-514, (in coll. with J. POUYET, N. SCHUTZ)

Working papers

The Real Effects of Valuation Mistakes: Estimates from Mergers and Acquisitions

Cahier de Recherche , 2025

Inter-cohort risk sharing with long-term guarantees: Evidence from German participating contracts

Deutsche Bundesbank Discussion Paper Series , 2021

The Long-Term Consequences of the Tech Bubble on Skilled Workers' Earnings

Cahier de Recherche du Groupe HEC , 2018

Incentive Constrained Risk Sharing, Segmentation, and Asset Pricing

Cahier de Recherche du Groupe HEC , 2017

Education

  • Ph.D. in Economics, Toulouse School of Economics - France
  • MS in Economics, École d'économie de Paris (Paris School of Economics) - France
  • Graduate Diploma in Economics and Statistics, Ecole Nationale de la Statistique et de l'Administration Economique (ENSAE) - France
  • B.S. in Applied Mathematics and Economics, Ecole Polytechnique - France

Academic appointments

Academic Responsibilities at HEC

  • 2022- Professor HEC Paris
  • 2021- Associate Dean of the Ph.D. Program HEC Paris
  • 2018-2020 Department Head, Finance HEC Paris

Scientific Activities

Editorial activities

  • Reviewer, Journal of Finance, Econometrica, Review of Financial Studies, Review of Economic Studies, Review of Finance, Review of Economics and Statistics, American Economic Review, Quarterly Journal of Economics

    • Conference organisation

  • 2019-2019 Organizer of the 8th Annual HEC Paris Workshop on Entrepreneurship

    • Awards & honors

    • 2016 2016 Best Young Researcher in Finance Award
    • 2015 Prix du Chercheur de l'annee 2015, Fondation HEC
    • 2015 Laureat du Prix EIF 2015 du meilleur papier en finance
    • 2014 Young Researcher in Economics Prize 2014