Johan HOMBERT
Associate Professor of Finance
HEC Paris
Curriculum Vitae
hombert@hec.fr
Publications
The Real Effects of Lending Relationships on Innovative Firms and Inventor Mobility
with Adrien Matray
Forthcoming in Review of Financial Studies
Hurting lending relationships stiffles innovation and leads to reallocation of inventors across firms and across states.
[vox summary]
Does Unemployment Insurance Change the Selection into Entrepreneurship?
with Antoinette Schoar, David Sraer and David Thesmar
Forthcoming in NBER book on Measuring Entrepreneurial Businesses, 2016
Giving unemployment benefits to entrepreneurs does not deteriorate the success potential of start-ups.
News Trading and Speed
with Thierry Foucault and Ioanid Rosu
Journal of Finance, 2016
Traders who observe news faster than others have extremely volatile ("high-frequency") strategies.
[supplementary appendix]
Equilibrium Pricing and Trading Volume under Preference Uncertainty
with Bruno Biais and Pierre-Olivier Weill
Review of Economic Studies, 2014
Asset pricing when traders make decisions under preference uncertainty, because their financial firms face challenges collecting, processing, and disseminating information.
[supplementary appendix]
Overcoming Limits of Arbitrage: Theory and Evidence
with David Thesmar
Journal of Financial Economics, 2014
Arbitrageurs can choose their capital structure to take advantage of temporary mispricing: theory and evidence.
Upstream Competition between Vertically Integrated Firms
with Marc Bourreau, Jerome Pouyet and Nicolas Schutz
Journal of Industrial Economics, 2011
Competition between vertically integrated firms can fail.
[supplementary appendix]
Working Papers
Can Unemployment Insurance Spur Entrepreneurial Activity? Evidence from France
with Antoinette Schoar, David Sraer and David Thesmar
R&R Journal of Political Economy
Giving unemployment benefits to entrepreneurs leads to the entry of small firms which eventually grow, and fosters creative destruction.
Can Innovation Help U.S. Manufacturing Firms Escape Import Competition from China?
with Adrien Matray
R&R Journal of Finance
U.S. manufacturing firms that have invested in R&D are more resilient to trade shocks.
Anticompetitive Vertical Mergers Waves
with Jerome Pouyet and Nicolas Schutz
Vertical mergers relax competition.
[supplementary appendix]
The Competitive Effect of a Bank Megamerger on Credit Supply
with Henri Fraisse and Mathias Le
A merger between two large European banks reduces credit supply to SMEs.
Teaching
Financial Markets
HEC Paris, Undergraduate (Fall 2015)
Stocks; Bonds; Futures and Forwards; Options; Market Efficiency
Asset Pricing, Liquidity and Market Imperfections
HEC Paris, PhD & Paris Saclay University, Master in Economics (Spring 2016)
[syllabus]