Lukasz Grzybowski


Telecom ParisTech,
Department of Economics and Social Sciences,
46 rue Barrault
75013 Paris, France

Phone: +33 145 817 195


My CV as pdf file


Substitution between fixed-line and mobile access: the role of complementarities, with Frank Verboven,
2016, Journal of Regulatory Economics,
49(2), pp. 113-151.

The role of network effects and consumer heterogeneity in the adoption of mobile phones: evidence from South Africa
Telecommunications Policy, 2015, 39(11), pp. 933943.

Estimating demand for fixed-mobile bundles and switching costs between tariffs
with Julienne Liang,
Information Economics and Policy, 2015, 33, pp. 110.

Market definition of broadband Internet services in Slovakia: are fixed and mobile in the relevant market?
with Rainer Nitsche, Lars Wiethaus and Frank Verboven, 2014, Information Economics and Policy, 28, pp. 39-56

Fixed-to-mobile substitution in the European Union
Telecommunications Policy, 2014, 38(7), pp. 601-612

Estimating broadband diffusion in the EU using NUTS1 regional data,
with Magali Dauvin
Telecommunications Policy, 2014, 38(1), pp. 96-104

Dynamic duopoly competition with switching costs and network externalities,
with Toker Doganoglu

Review of Network Economics, 2013, 12(1), pp.1-25

Screening competition in mobile telephony
Applied E
conomics, 2011, 43(17), pp.2155-2163

Estimating network choices and switching costs in mobile telephony, with Pedro Pereira,

Review of Industrial Organization, 2011, 38(1), pp.23-42

Hedonic study on mobile telephony market in France: price-quality strategies,
with Chiraz Karamti,

Netnomics, 2010, 11(3), pp.255-289

Competition in mobile telephony in France and Germany
, with Chiraz Karamti,

Manchester School, 2010, 78(6), pp.702-724

The consumer welfare loss of minimum charges in mobile telephony
, with Pedro Pereira,

Telecommunications Policy, 2009, 33(3-4), pp. 200-206

Complementarity between calls and messages in mobile telephony
, with Pedro Pereira

Information Economics and Policy, 2008, 20(3), pp.279-287

Estimating switching costs in the mobile telecommunications industry in the UK,

Journal of Industry, Competition and Trade, 2008, 8(2), pp.113-132

The i
mpact of regulation on the retail prices in fixed-line telephony across the European Union,

Telecommunications Policy, 2008, 32(2), pp.131-144

The competitiveness of mobile telecommunications industry across the European Union,

International Journal of the Economics of Business, 2008, 15(1), pp.99-115

Simulation of merger in mobile telephony in Portugal
, with Pedro Pereira

Review of Industrial Organization, 2007, 31(3), pp.205-220

Estimating network effects in the mobile telecommunications industry in Germany
, with Toker Doganoglu,

Information Economics and Policy, 2007, 19(1), pp.65-79

Regulation of mobile telephony across the European Union: an empirical analysis,

Journal of Regulatory Economics, 2005, 28(1), pp.47-67

Working papers

The impact of online sales on consumers and firms - Evidence from consumer electronics, with Nestor Duch-Brown, Frank Verboven and Andre Romahn

International price differences in online markets - Evidence from portable computers, with Nestor Duch-Brown, Frank Verboven and Andre Romahn

Unbundling the incumbent and entry into fiber - Evidence from France, with Maude Hasbi and Marc Bourreau

Transition from copper to fiber broadband: the role of connection speed and switching costs, with Maude Hasbi and Julienne Liang

Impact of competition and regulation on prices of mobile services: Evidence from France, with Ambre Nicolle and Christine Zulehner

Infrastructure deficiencies and adoption of mobile money in Sub-Saharan Africa, with Onkokame Mothobi

Impact of Internet on the pricing of CD titles in France, with Marc Bourreau and Francois Moreau

Current appointment

since 01.2012: Associate Professor, Telecom ParisTech

Other affiliation

since 01.2012: A/Professor, School of Economics, University of Cape Town


06.2015:               Habilitation (Habilitation a diriger des recherches) Universite Paris 1 Pantheon-Sorbonne
05.2001 - 07.2005:
Ph.D. Economics, University of Munich
10.1995 - 10.2000: M.Sc. Warsaw School of Economics

Research appointments

10.2004 - 06.2005: visiting researcher at IDEI, Universite de Toulouse 1
01.2004 - 06.2004: Marie Curie Fellowship at Universitat Pompeu Fabra, Barcelona

05.2001 - 04.2003: researcher at Center for Information and Network Economics, University of Kiel


07.2010 - 12.2011: Senior Lecturer, School of Economics, University of Cape Town
08.2008 - 06.2010: Manager, Econometrics Team, Ernst & Young, London

08.2007 - 08.2008: Economist, UK Competition Commission

10.2006 - 10.2007: Visiting Assistant Professor, Universidad de Alicante

09.2005 - 10.2006: Post-Doctoral Fellow CEPR RTN Competition Policy in International Markets at Katholieke Universiteit Leuven

04.2006 - 08.2006: Trainee at Chief Economist Team, DG Competition, European Commission in Brussels

05.2003 - 07.2005: Research Assistant, Center for Information and Network Economics, University of Munich
05.2001 - 04.2003: Research Assistant, Center for Information and Network Economics, University of Kiel
09.1998 - 04.2001: Database Marketing Manager, Bertelsmann Media, Warsaw
07.1997 - 09.1997: Intern, Polkomtel SA, Warsaw