Published Research:

Impact of roaming regulation on revenues and prices of mobile operators in the EU

with Ángela Muñoz-Acevedo, International Journal of Industrial Organization, 2023, Vol. 81.

International price differences in online markets - Evidence from portable computers,

with Nestor Duch-Brown, Frank Verboven and Andre Romahn, American Economic Journal: Micro, 2023, Vol. 15(4), pp.268-305.

Mobile phones and financial inclusion in Sub-Saharan Africa,

with Valentin Lindlacher, Onkokame Mothobi, Information Economics and Policy, 2023, 65, 101064. 

Interoperability between mobile money agents and choice of network operators: the case of Tanzania,

with Valentin Lindlacher, Onkokame Mothobi, Review of Network Economics, 2023, vol. 22, no. 1, pp.27-52.

The impact of mobile phones on change in employment status in South Africa,

with Zubair Patel, Review of Network Economics, 2023, vol. 22, no. 2, pp. 85-114.

Bundling and consumer churn in telecommunications,

with Christine Zulehner and Julienne Liang, Review of Network Economics, 2021, 20(1), pp.35-54. 

Estimating consumer inertia in repeated choices of smartphones,

with Ambre Nicolle, Journal of Industrial Economics, 2021, 63(1), pp.33-82.

Are online markets more integrated than traditional markets? Evidence from consumer electronics,

with Nestor Duch-Brown, Frank Verboven and Andre Romahn, Journal of International Economics, 2021, 131.

Distribution of the benefits of regulation vs. competition: The case of mobile telephony in South Africa,

with Ryan Hawthorne, International Journal of Industrial Organization, 2021, 74.

Unbundling the incumbent and deployment of high-speed broadband: Evidence from France,

with Maude Hasbi and Marc Bourreau, International Journal of Industrial Organization, 2019, 67.

Impact of competition, investment and regulation on prices of mobile services: Evidence from France,

with Ambre Nicolle and Christine Zulehner, Economic Inquiry, 2018, 56, Issue 2, pp.1322-1345.

Transition from copper to fiber broadband: The role of connection speed and switching costs,

with Julienne Liang and Maude Hasbi, Information Economics and Policy, 2018, 42, pp.1-10.

The impact of online sales on consumers and firms. Evidence from consumer electronics,

with Nestor Duch-Brown, Andre Romahn and Frank Verboven, Frank, International Journal of Industrial Organization, 2017, 52, pp.30-62.

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

with Onkokame Mothobi, Information Economics and Policy, 2017, 40, pp.71–79.

Substitution between fixed-line and mobile access: the role of complementarities,

with Frank Verboven, Journal of Regulatory Economics, 2016, 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. 933–943.

Estimating demand for fixed-mobile bundles and switching costs between tariffs,

with Julienne Liang, Information Economics and Policy, 2015, 33, pp. 1–10

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 Economics, 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 impact 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