Johan HOMBERT

Professeur

Finance

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

Johan Hombert est diplômé de l'Ecole Polytechnique et a un doctorat d'économie de la Toulouse School of Economics. Sa recherche porte sur l'assurance vie et le financement de l'entrepreneuriat et l'innovation. Ses travaux ont été publiés dans les revues internationales de finance et d'économie telles que American Economic Review, Journal of Finance, Review of Financial Studies, Journal of Financial of Economics, Review of Financial Studies. En 2021, il a reçu la prestigieuse bourse de l'European Research Council pour étudier l'épargne à long terme en assurance vie.

Articles scientifiques

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

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

Incentive constrained risk sharing, segmentation and asset pricing

American Economic Review, novembre 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, juin 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, septembre-décembre 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, août 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, octobre 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, juillet 2017, vol. 30, n° 7, pp 2413–2445, (in coll. with A. MATRAY)

News Trading and Speed

Journal of Finance, février 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, janvier 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, octobre 2014, vol. 81, n° 4, pp 1401-1437, (in coll. with B. BIAIS, P. O. WEILL)

Cahiers de recherche

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

Articles scientifiques

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

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

Incentive constrained risk sharing, segmentation and asset pricing

American Economic Review, novembre 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, juin 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, septembre-décembre 2019, vol. 67, n° 3-4, pp 484-514, (in coll. with J. POUYET, N. SCHUTZ)

Cahiers de recherche

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

Formation

  • Doctorat d'Economie, Toulouse School of Economics - France
  • Master d'Economie, École d'économie de Paris (Paris School of Economics) - France
  • Ecole Nationale de la Statistique et de l'Administration Economique, Paris, Ecole Nationale de la Statistique et de l'Administration Economique (ENSAE) - France
  • Majeures en Mathématiques Appliquées et Economie, Ecole Polytechnique - France

Nominations académiques

Responsabilités académiques à HEC

  • 2022- Professeur HEC Paris
  • 2021- Doyen Associé du programme doctoral HEC Paris
  • 2018-2020 Coordinateur de département, Finance HEC Paris

Activités scientifiques

Activités scientifiques

  • Rapporteur, 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

    • Prix ​​& honneurs

    • 2016 Prix 2016 du Meilleur Jeune Chercheur en Finance
    • 2015 Prix du Chercheur de l'année 2015, Fondation HEC
    • 2015 Lauréat du Prix EIF 2015 du meilleur papier en finance
    • 2014 Prix Jeune Chercheur en Economie 2014