Research

Job market paper

• Competition and Quality: Evidence from the Entry of Mobile Network Service

  • with Marc Bourreau, Working Paper.

  • We study how a new entry reshaped the dynamic incentives for investment in mobile networks competing on network quality. 

Publications

• Market Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market

  • with Marc Bourreau and Frank Verboven, American Economic Review, 2021. (Paper, Codes)

  • We show how a new entry triggered a breakdown of the incumbents' semi-collusion on product variety, leading to competitive introduction of fighting brands in the French telecom market.

• A Computationally Efficient Fixed Point Approach to Dynamic Structural Demand Estimation 

  • with Masakazu Ishihara, Journal of Econometrics, 2019. (Paper, Codes)

  • We develop a quasi-Bayesian estimator for dynamic BLP demand using reinforcement learning algorithm inspired by Pakes and McGuire. It outperforms existing methods in terms of computation speed and convergence rate in high-dimensional demand systems. 

Work in progress

• Competition and Welfare Impacts of Product Variety in Two-Sided Platforms

  • This study examines product proliferation in the mobile handsets supply for smartphone OS platforms such as BlackBerry and iPhone.

Old working papers

• The Value of Branding in Two-Sided Platforms

  • from Ph.D. thesis in marketing, Manuscript.

  • This paper documents how the smartphone operating systems gained market power by adopting an app store to become a two-sided platform.