Ambre Elsas-Nicolle

Research fellow (equivalent to Associate Professor)

Center · CEDP

Discipline(s): Economics
Topic(s): AI Impact, Governance, Market, Public Policy, Regulation

Keywords

Awards & distinctions

2025 2025 Research Chair in the Humanities and Social Sciences (SHS). Grant from the Île-de-France Region
2025 Prix du meilleur évaluateur (Best Referee), Competitive Strategy Interest Group, Strategic Management Society (SMS)
2025 Best Referee Award, Academy of Management Perspectives

Team

CEDP

Biography

Ambre Elsas Nicolle is a researcher whose work focuses on competitive dynamics within digital platform ecosystems. Her research analyzes the impact of a rival platform’s entry on the strategies of complementary actors, focusing in particular on the trade-offs between indirect network effects and the intensity of intra-platform competition. Through her study of the PC video game market—marked by the arrival of Epic Games as a competitor to Steam—she highlights varied reactions among developers, linked to their strategic resources and their dependence on network effects. Her analyses highlight how these mechanisms influence multihoming behavior and responsiveness to coordinated initiatives by established platforms. Her contributions shed light on the managerial and theoretical challenges of platform governance in competitive environments.

Publication(s)

2026
Platform competition and strategic trade-offs for complementors: Heterogeneous reactions to the entry of a new platform DOI : 10.1002/smj.70062
2026
Strategic Confusopoly: Evidence from the UK mobile market DOI : 10.1287/stsc.2024.0285
2023
Displacement and complementarity in the recorded music industry: Evidence from France DOI : 10.1007/s10824-023-09471-0
2020
Assessing fifteen years of State Aid for broadband networks in the European Union: a quantitative analysis DOI : 10.1016/j.telpol.2020.101974
2018
Impact of competition, investment and regulation on prices of mobile services: Evidence from France DOI : 10.1111/ecin.12547
Estimating consumer inertia in repeated choices of smartphones DOI : 10.1111/joie.12239

Teaching

Digital Platform Strategy

2025 – En cours Course Director

Ce cours explore le fonctionnement et les stratégies concurrentielles des plateformes numériques. À travers des concepts d’économie managériale, des travaux récents et des études de cas, les participants analysent notamment les effets de réseau, les marchés bifaces, les modèles de tarification, la gouvernance des écosystèmes, ainsi que l’influence de l’intelligence artificielle et des données sur l’innovation et la prise de décision stratégique.