I am a Full Professor in the Department of Economics and Social Sciences at Telecom ParisTech where I teach and do research in Economics, Econometrics, Applied Statistics and related fields.

My research is interested in how the Internet and the digital revolution are transforming the Banking and Payments as well as the Media and Advertising industries.

I collaborate with colleagues in Economics, Statistics and Computer sciences from universities, public institutions and private research companies.


I am a Member of the Scientific Committee of the Centre d'Etude des Supports de Publicité.

I develop several research programs with banks, payment card networks, and central banks to study how financial and technological innovations are transforming individual payment decisions, sectoral regulations and monetary policies.


International Journals (a selection)

Chapters in Books

  • How Do Internet Payments Challenge the Retail Payment Industry? , in L. Anderloni, D.T. Llewellyn, R. Schmidt, Financial Innovation in Retail and Corporate Banking, Edward Elgar Publishing Ltd. , with P. Gazé, 2008.
  • Payment and the Internet: Issues and research perspectives in economics of banking, in E. Brousseau and N. Curien, Internet and Digital Economics, Cambridge University Press, with P. Gazé, 2007.




French publications (a selection)


  • An interest topic: An Empirical Study of Web Cookies, 2016 (Cahn et al.).