Policy-oriented digital economist
Academic lecturer specialising in microeconomics and industrial organisation
Researcher with empirical focus on competition and regulation issues in telecoms, digital platforms and data
job market paper
Sobolewski, M., Duch-Brown, N. (2024) Entry and competition on platform markets. Evidence from the European tablet industry
journal articles
Sobolewski, M. (2021). Measuring consumer well-being from using free-of-charge digital services. The case of navigation apps. Information Economics and Policy, 56, 100925.
Sobolewski, M., & Allessie, D. (2021). Blockchain Applications in the Public Sector: Investigating Seven Real-Life Blockchain Deployments and Their Benefits. Blockchain and the Public Sector: Theories, Reforms, and Case Studies, 97-126.
Sobolewski, M., & Czajkowski, M. (2018). Receiver benefits and strategic use of call externalities in mobile telephony markets. Information Economics and Policy, 44, 16-27.
Kopczewski, T., Sobolewski, M., & Miernik, I. (2018). Bundling or unbundling? Integrated simulation model of optimal pricing strategies. International Journal of Production Economics, 204, 328-345.
Gyódi, K., Sobolewski, M., & Ziembiński, M. (2018). What drives price dispersion in the European e-commerce industry?. Central European Economic Journal, 3(50), 53-71.
Sobolewski, M., & Kopczewski, T. (2017). Estimating demand for fixed-line telecommunication bundles. Telecommunications Policy, 41(4), 227-241.
Czajkowski, M., & Sobolewski, M. (2016). How much do switching costs and local network effects contribute to consumer lock-in in mobile telephony?. Telecommunications policy, 40(9), 855-869.
Sobolewski, M., & Formanski, T. (2014). Simulation Analysis of SMRA Auction: An Application to Forthcoming LTE Spectrum Auction in Poland. Decyzje, 21, 95-114.
Sobolewski, M., & Czajkowski, M. (2012). Network effects and preference heterogeneity in the case of mobile telecommunications markets. Telecommunications Policy, 36(3), 197-211.
Czajkowski, M., & Sobolewski, M. (2011). Measuring network effects in mobile telecommunications markets with stated-preference valuation methods. International Journal of Management and Network Economics, 2(2), 197-215.
policy articles
Sobolewski, M., Mazur, J., & Paliński, M. (2017). GDPR: A step towards a user-centric internet?. Intereconomics, 52, 207-213.
Sobolewski, M., & Duch Brown, N. (2022). Content Moderation and Competition in Digital Markets. TechREG Chronicle, December.
working papers
Rys, P., & Sobolewski, M. (2020). Two-sided platforms: dynamic pricing and multiple equilibria.
Sobolewski, M. (2020). Content moderation on two-sided markets.
Sobolewski, M., Miernik, I., & Kopczewski, T. (2015). Bundling or Unbundling ? Analysis of Profit Gains from Bundling.
Sobolewski, M., & Paliński, M. (2017). How Much Consumers Value on-Line Privacy? Welfare Assessment of New Data Protection Regulation (Gdpr).