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Publications

by alumni of

Ludwig-Maximilians-Universität München → Institut für Statistik → Center for Quantitative Risk Analysis (CEQURA)

University of Munich → Institute of Statistics

These are publications listed in RePEc written by alumni of the above institution who are registered with the RePEc Author Service and listed in the RePEc Genealogy. List of alumni. For a list of publications by current members of the department, see here. Register yourself.

This page is updated in the first days of each month.

| Working papers | Journal articles |

Working papers

2026

  1. Lukasz Grzybowski, 2026, "Digital Infrastructure as a Driver of Inclusive Growth," ERSA Working Paper Series, Economic Research Southern Africa, number 358, Jul.

2025

  1. Monica Barahona-Varon & Toker Doganoglu & Lukasz Grzybowski, 2025, "Socioeconomic Determinants of Awareness of Energy Labels and Their Influence on Purchase Decisions in the EU," CESifo Working Paper Series, CESifo, number 11637.
  2. Marc Bourreau & Lukasz Grzybowski & Ángela Muñoz-Acevedo, 2025, "State Aid for Broadband and Crowding Out of Private Investment: Evidence from the French Market," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2025-24.
  3. Toker Doganoglu & Lukasz Grzybowski & Frank Verboven, 2025, "How Effective are Energy Labels? Evidence from the 2021 EU Reform," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2025-26.

2024

  1. Lukasz Grzybowski & Valentin Lindlacher & Onkokame Mothobi, 2024, "Mobile money and financial inclusion in Sub-Saharan Africa," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-20.
  2. Lukasz Grzybowski & Zubair Maghmood Patel, 2024, "The Impact of Mobile Phones on Change in Employment Status in South Africa," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-21.
  3. Lukasz Grzybowski & Valentin Lindlacher & Onkokame Mothobi, 2024, "Interoperability between mobile money agents and choice of network operators: the case of Tanzania," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-22.
  4. Ryan Hawthorne & Lukasz Grzybowski, 2024, "Narrowing the ‘digital divide’: the role of fixed and mobile infrastructure," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-23.
  5. Toker Doganoglu & Lukasz Grzybowski & Joanna Rachubik, 2024, "Explaining the Willingness to Pay Higher Prices and Taxes to Combat Climate Change," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-24.
  6. Monica Barahona-Varon & Toker Doganoglu & Lukasz Grzybowski, 2024, "Awareness and Impact of Energy Labels on Purchases of Household Appliances in the EU," Working Papers, Faculty of Economic Sciences, University of Warsaw, number 2024-25.

2023

  1. Marc Bourreau & Lukasz Grzybowski & Ángela Muñoz-Acevedo, 2023, "The Efficiency of State Aid for the Deployment of High-Speed Broadband: Evidence from the French Markets," CESifo Working Paper Series, CESifo, number 10440.

2021

  1. Lukasz Grzybowski & Ángela Munoz-Acevedo, 2021, "Impact of Roaming Regulation on Revenues and Prices of Mobile Operators in the EU," CESifo Working Paper Series, CESifo, number 9235.
  2. Ryan Hawthorne & Lukasz Grzybowski, 2021, "Distribution of the benefits of regulation vs. competition: The case of mobile telephony in South Africa," Post-Print, HAL, number hal-03235928, Jan, DOI: 10.1016/j.ijindorg.2020.102673.

2020

  1. Verboven, Frank & Grzybowski, Lukasz & Romahn, André & Duch-Brown, Néstor, 2020, "Evaluating the Impact of Online Market Integration - Evidence from the EU Portable PC Market," CEPR Discussion Papers, Centre for Economic Policy Research, number 14864, Jul.
  2. Verboven, Frank & Duch-Brown, Néstor & Romahn, André & Grzybowski, Lukasz, 2020, "Are Online Markets More Integrated than Traditional Markets? Evidence from Consumer Electronics," CEPR Discussion Papers, Centre for Economic Policy Research, number 15031, Jul.
  3. Néstor Duch-Brown & Lukasz Grzybowski & André Romahn & Frank Verboven, 2020, "Evaluating the impact of market integration -Banning online trade restrictions in the EU portable PC market," Working Papers of Department of Economics, Leuven, KU Leuven, Faculty of Economics and Business (FEB), Department of Economics, Leuven, number 655992, Jun.

2019

  1. Ryan Hawthorne & Lukasz Grzybowski, 2019, "Benefits of Regulation vs. Competition Where Inequality Is High: The Case of Mobile Telephony in South Africa," CESifo Working Paper Series, CESifo, number 7703.
  2. Ryan Hawthorne & Lukasz Grzybowski, 2019, "Narrowing the 'Digital Divide': The Role of Complementarities Between Fixed and Mobile Data in South Africa," CESifo Working Paper Series, CESifo, number 7711.
  3. Lukasz Grzybowski & Ryan Hawthrone, 2019, "Benefits of regulation vs. competition where inequality is high: The case of mobile telephony in South Africa," ERSA Working Paper Series, Economic Research Southern Africa, number 195, Aug.
  4. Lukasz Grzybowski & Ryan Hawthrone, 2019, "Substitution between fixed and mobile data amidst high levels of poverty and inequality," ERSA Working Paper Series, Economic Research Southern Africa, number 196, Sep.
  5. Lukasz Grzybowski & Ryan Hawthrone, 2019, "Benefits of regulation vs competition where inequality is high: The case of mobile telephony in South Africa," ERSA Working Paper Series, Economic Research Southern Africa, number 791, Aug.
  6. Lukasz Grzybowski & Ryan Hawthrone, 2019, "Narrowing the ‘digital divide’: the role of complementarities between fixed and mobile data in South Africa," ERSA Working Paper Series, Economic Research Southern Africa, number 792, Sep.

2018

  1. Marc Bourreau & Lukasz Grzybowski & Maude Hasbi, 2018, "Unbundling the Incumbent and Deployment of High-Speed Internet: Evidence from France," CESifo Working Paper Series, CESifo, number 7006.
  2. Lukasz Grzybowski & Maude Hasbi & Julienne Liang, 2018, "Transition from Copper to Fiber Broadband: The Role of Connection Speed and Switching Costs," CESifo Working Paper Series, CESifo, number 7431.
  3. Lukasz Grzybowski & Ambre Nicolle, 2018, "Estimating Consumer Inertia in Repeated Choices of Smartphones," CESifo Working Paper Series, CESifo, number 7434.
  4. Ambre Nicolle & Lukasz Grzybowski & Christine Zulehner, 2018, "Impact Of Competition, Investment, And Regulation On Prices Of Mobile Services: Evidence From France," Post-Print, HAL, number hal-02102353, Apr, DOI: 10.1111/ecin.12547.

2017

  1. Grzybowski, Lukasz & Nicolle, Ambre & Zulehner, Christine, 2017, "Impact of competition and regulation on prices of mobile services: Evidence from France," 28th European Regional ITS Conference, Passau 2017, International Telecommunications Society (ITS), number 169465.
  2. Grzybowski, Lukasz & Liang, Julienne & Zulehner, Christine, 2017, "Bundling, consumer retention and entry: evidence from fixed broadband market," 14th ITS Asia-Pacific Regional Conference, Kyoto 2017: Mapping ICT into Transformation for the Next Information Society, International Telecommunications Society (ITS), number 168483.

2015

  1. Nestor Duch-Brown & Lukasz Grzybowski & Frank Verboven, 2015, "The Impact of Online Sales on Consumers and Firms: Evidence from Household Appliances," JRC Working Papers on Digital Economy, Joint Research Centre, number 2015-15.
  2. Lukasz Grzybowski, 2015, "The role of network effects and consumer heterogeneity in adoption of mobile phones: evidence from South Africa," ERSA Working Paper Series, Economic Research Southern Africa, number 522, Jun.

2014

  1. Verboven, Frank & Grzybowski, Lukasz, 2014, "Substitution between Fixed-line and Mobile Access: the Role of Complementarities," CEPR Discussion Papers, Centre for Economic Policy Research, number 10045, Jun.
  2. Magali Dauvin & Lukasz Grzybowski, 2014, "Estimating broadband diffusion in the EU using NUTS 1 regional data," Post-Print, HAL, number hal-03399363, DOI: 10.1016/j.telpol.2013.05.006.
  3. Lukasz Grzybowski & Magali Dauvin, 2014, "Estimating broadband diffusion in the EU using NUTS1 regional data," ERSA Working Paper Series, Economic Research Southern Africa, number 407, Jan.
  4. Grzybowski, Lukasz & Liang, Julienne, 2014, "Estimating demand for quadruple-play tariffs: The impact on consumer surplus," 25th European Regional ITS Conference, Brussels 2014, International Telecommunications Society (ITS), number 101375.

2013

  1. L. Grzybowski, 2013, "Dynamic duopoly competition with switching costs and network externalities," Post-Print, HAL, number hal-02286667, Mar.
  2. Lukasz Grzybowski & Frank Verboven, 2013, "Substitution and Complementarity between Fixed-line and Mobile Access," Working Papers, NET Institute, number 13-09, Sep.

2012

  1. Lukasz Grzybowski, 2012, "Fixed-to-Mobile Substitution in the European Union," ERSA Working Paper Series, Economic Research Southern Africa, number 271, Mar.

2011

  1. L. Grzybowski, 2011, "Estimating network choices and switching costs in mobile telephony," Post-Print, HAL, number hal-02286665, Jan.

2009

  1. L. Grzybowski, 2009, "The consumer welfare loss of minimum charges in mobile telephony," Post-Print, HAL, number hal-02286664, Apr.

2008

  1. L. Grzybowski, 2008, "The competitiveness of mobile telecommunications industry across the European Union," Post-Print, HAL, number hal-02286634, Jan.
  2. L. Grzybowski, 2008, "The impact of regulation on the retail prices in fixed-line telephony across the European Union," Post-Print, HAL, number hal-02286635, Mar.
  3. L. Grzybowski, 2008, "Estimating switching costs in the mobile telecommunications industry in the UK," Post-Print, HAL, number hal-02286636, Jun.
  4. L. Grzybowski, 2008, "The complementarity between calls and messages in mobile telephony," Post-Print, HAL, number hal-02286668, Sep.

2007

  1. L. Grzybowski, 2007, "Estimating network effects in the mobile telecommunications industry in Germany," Post-Print, HAL, number hal-02286631, Mar.
  2. L. Grzybowski, 2007, "Merger Simulation in Mobile Telephony in Portugal," Post-Print, HAL, number hal-02286633, Nov.
  3. Lukasz Grzybowski & Chiraz Karamti, 2007, "Competition in Mobile Telephony in France and Germany," Working Papers, NET Institute, number 07-24, Sep, revised Sep 2007.
  4. Lukasz Grzybowski & Pedro Pereira, 2007, "The Consumer Loss of the Minimum Duration for Mobile Telephone Calls," Working Papers, Portuguese Competition Authority, number 26, Jul.

2006

  1. Lukasz Grzybowski & Pedro Pereira, 2006, "Simulation of Merger in Mobile Telephony in Portugal," Working Papers, NET Institute, number 06-22, Oct, revised Oct 2006.

2005

  1. L. Grzybowski, 2005, "Regulation of mobile telephony across the European Union: an empirical analysis," Post-Print, HAL, number hal-02286630, Apr.
  2. Grzybowski, Lukasz, 2005, "Essays on Economics of Network Industries: Mobile Telephony," Munich Dissertations in Economics, University of Munich, Department of Economics, number 5561, Jul.

Journal articles

2026

  1. Doganoglu, Toker & Grzybowski, Lukasz & Rachubik, Joanna, 2026, "Determinants of willingness to bear the costs for environmental protection: Insights from cross-country survey data," Ecological Economics, Elsevier, volume 241, issue C, DOI: 10.1016/j.ecolecon.2025.108876.
  2. Bourreau, Marc & Grzybowski, Lukasz & Muñoz-Acevedo, Ángela, 2026, "State aid for broadband and crowding out of private investment: Evidence from the French market," International Journal of Industrial Organization, Elsevier, volume 104, issue C, DOI: 10.1016/j.ijindorg.2025.103240.

2025

  1. Ryan Hawthorne & Lukasz Grzybowski, 2025, "Narrowing the “Digital Divide”: The Role of Fixed and Mobile Infrastructure," Journal of Economics & Management Strategy, Wiley Blackwell, volume 34, issue 4, pages 799-829, November, DOI: 10.1111/jems.12622.

2023

  1. Néstor Duch-Brown & Lukasz Grzybowski & André Romahn & Frank Verboven, 2023, "Evaluating the Impact of Online Market Integration—Evidence from the EU Portable PC Market," American Economic Journal: Microeconomics, American Economic Association, volume 15, issue 4, pages 268-305, November, DOI: 10.1257/mic.20200254.
  2. Grzybowski Lukasz & Lindlacher Valentin & Mothobi Onkokame, 2023, "Interoperability Between Mobile Money Agents and Choice of Network Operators: The Case of Tanzania," Review of Network Economics, De Gruyter, volume 22, issue 1, pages 27-52, June, DOI: 10.1515/rne-2023-0024.
  3. Grzybowski Lukasz & Patel Zubair Maghmood, 2023, "The Impact of Mobile Phones on Change in Employment Status in South Africa," Review of Network Economics, De Gruyter, volume 22, issue 2, pages 85-114, August, DOI: 10.1515/rne-2022-0008.
  4. Grzybowski, Lukasz & Lindlacher, Valentin & Mothobi, Onkokame, 2023, "Mobile money and financial inclusion in Sub-Saharan Africa," Information Economics and Policy, Elsevier, volume 65, issue C, DOI: 10.1016/j.infoecopol.2023.101064.
  5. Muñoz-Acevedo, Ángela & Grzybowski, Lukasz, 2023, "Impact of roaming regulation on revenues and prices of mobile operators in the EU," International Journal of Industrial Organization, Elsevier, volume 89, issue C, DOI: 10.1016/j.ijindorg.2023.102927.

2021

  1. Lukasz Grzybowski & Ambre Nicolle, 2021, "Estimating Consumer Inertia in Repeated Choices of Smartphones," Journal of Industrial Economics, Wiley Blackwell, volume 69, issue 1, pages 33-82, March, DOI: 10.1111/joie.12239.
  2. Grzybowski Lukasz & Liang Julienne & Zulehner Christine, 2021, "Bundling and Consumer Churn in Telecommunications Markets," Review of Network Economics, De Gruyter, volume 20, issue 1, pages 35-54, March, DOI: 10.1515/rne-2021-0032.
  3. Hawthorne, Ryan & Grzybowski, Lukasz, 2021, "Distribution of the benefits of regulation vs. competition: The case of mobile telephony in South Africa," International Journal of Industrial Organization, Elsevier, volume 74, issue C, DOI: 10.1016/j.ijindorg.2020.102673.
  4. Duch-Brown, Néstor & Grzybowski, Lukasz & Romahn, André & Verboven, Frank, 2021, "Are online markets more integrated than traditional markets? Evidence from consumer electronics," Journal of International Economics, Elsevier, volume 131, issue C, DOI: 10.1016/j.jinteco.2021.103476.

2019

  1. Bourreau, Marc & Grzybowski, Lukasz & Hasbi, Maude, 2019, "Unbundling the incumbent and deployment of high-speed internet: Evidence from France," International Journal of Industrial Organization, Elsevier, volume 67, issue C, DOI: 10.1016/j.ijindorg.2019.102526.

2018

  1. Ambre Nicolle & Lukasz Grzybowski & Christine Zulehner, 2018, "Impact Of Competition, Investment, And Regulation On Prices Of Mobile Services: Evidence From France," Economic Inquiry, Western Economic Association International, volume 56, issue 2, pages 1322-1345, April, DOI: 10.1111/ecin.12547.
  2. Grzybowski, Lukasz & Hasbi, Maude & Liang, Julienne, 2018, "Transition from copper to fiber broadband: The role of connection speed and switching costs," Information Economics and Policy, Elsevier, volume 42, issue C, pages 1-10, DOI: 10.1016/j.infoecopol.2017.07.001.

2017

  1. Mothobi, Onkokame & Grzybowski, Lukasz, 2017, "Infrastructure deficiencies and adoption of mobile money in Sub-Saharan Africa," Information Economics and Policy, Elsevier, volume 40, issue C, pages 71-79, DOI: 10.1016/j.infoecopol.2017.05.003.
  2. Duch-Brown, Néstor & Grzybowski, Lukasz & Romahn, André & Verboven, Frank, 2017, "The impact of online sales on consumers and firms. Evidence from consumer electronics," International Journal of Industrial Organization, Elsevier, volume 52, issue C, pages 30-62, DOI: 10.1016/j.ijindorg.2017.01.009.

2016

  1. Lukasz Grzybowski & Frank Verboven, 2016, "Substitution between fixed-line and mobile access: the role of complementarities," Journal of Regulatory Economics, Springer, volume 49, issue 2, pages 113-151, April, DOI: 10.1007/s11149-015-9290-2.

2015

  1. Grzybowski, Lukasz & Liang, Julienne, 2015, "Estimating demand for fixed-mobile bundles and switching costs between tariffs," Information Economics and Policy, Elsevier, volume 33, issue C, pages 1-10, DOI: 10.1016/j.infoecopol.2015.08.002.
  2. Grzybowski, Lukasz, 2015, "The role of network effects and consumer heterogeneity in the adoption of mobile phones: Evidence from South Africa," Telecommunications Policy, Elsevier, volume 39, issue 11, pages 933-943, DOI: 10.1016/j.telpol.2015.08.010.

2014

  1. Grzybowski, Lukasz & Nitsche, Rainer & Verboven, Frank & Wiethaus, Lars, 2014, "Market definition for broadband internet in Slovakia – Are fixed and mobile technologies in the same market?," Information Economics and Policy, Elsevier, volume 28, issue C, pages 39-56, DOI: 10.1016/j.infoecopol.2014.06.002.
  2. Dauvin, Magali & Grzybowski, Lukasz, 2014, "Estimating broadband diffusion in the EU using NUTS 1 regional data," Telecommunications Policy, Elsevier, volume 38, issue 1, pages 96-104, DOI: 10.1016/j.telpol.2013.05.006.
  3. Grzybowski, Lukasz, 2014, "Fixed-to-mobile substitution in the European Union," Telecommunications Policy, Elsevier, volume 38, issue 7, pages 601-612, DOI: 10.1016/j.telpol.2014.02.002.

2013

  1. Doganoglu Toker & Grzybowski Lukasz, 2013, "Dynamic Duopoly Competition with Switching Costs and Network Externalities," Review of Network Economics, De Gruyter, volume 12, issue 1, pages 1-25, March, DOI: 10.1515/rne-2012-0010.

2011

  1. Lukasz Grzybowski & Pedro Pereira, 2011, "Subscription Choices and Switching Costs in Mobile Telephony," Review of Industrial Organization, Springer;The Industrial Organization Society, volume 38, issue 1, pages 23-42, January, DOI: 10.1007/s11151-011-9275-y.
  2. Lukasz Grzybowski, 2011, "Screening competition in mobile telephony†," Applied Economics, Taylor & Francis Journals, volume 43, issue 17, pages 2155-2163, DOI: 10.1080/00036840903153788.

2010

  1. Lukasz Grzybowski & Chiraz Karamti, 2010, "Competition In Mobile Telephony In France And Germany," Manchester School, University of Manchester, volume 78, issue 6, pages 702-724, December, DOI: 10.1111/j.1467-9957.2009.02155.x.
  2. Chiraz Karamti & Lukasz Grzybowski, 2010, "Hedonic study on mobile telephony market in France: pricing–quality strategies," Netnomics, Springer, volume 11, issue 3, pages 255-289, October, DOI: 10.1007/s11066-010-9049-y.

2008

  1. Grzybowski, Lukasz & Pereira, Pedro, 2008, "The complementarity between calls and messages in mobile telephony," Information Economics and Policy, Elsevier, volume 20, issue 3, pages 279-287, September.
  2. Grzybowski, Lukasz, 2008, "The impact of regulation on the retail prices in fixed-line telephony across the European Union," Telecommunications Policy, Elsevier, volume 32, issue 2, pages 131-144, March.
  3. Lukasz Grzybowski, 2008, "Estimating Switching Costs in Mobile Telephony in the UK," Journal of Industry, Competition and Trade, Springer, volume 8, issue 2, pages 113-132, June, DOI: 10.1007/s10842-007-0010-1.
  4. Lukasz Grzybowski, 2008, "The Competitiveness of Mobile Telephony across the European Union," International Journal of the Economics of Business, Taylor & Francis Journals, volume 15, issue 1, pages 99-115, DOI: 10.1080/13571510701830549.

2007

  1. Doganoglu, Toker & Grzybowski, Lukasz, 2007, "Estimating network effects in mobile telephony in Germany," Information Economics and Policy, Elsevier, volume 19, issue 1, pages 65-79, March.
  2. Lukasz Grzybowski & Pedro Pereira, 2007, "Merger Simulation in Mobile Telephony in Portugal," Review of Industrial Organization, Springer;The Industrial Organization Society, volume 31, issue 3, pages 205-220, November, DOI: 10.1007/s11151-008-9155-2.

2005

  1. Lukasz Grzybowski, 2005, "Regulation of Mobile Telephony across the European Union: An Empirical Analysis," Journal of Regulatory Economics, Springer, volume 28, issue 1, pages 47-67, July, DOI: 10.1007/s11149-005-2355-x.

Undated

  1. Grzybowski, Lukasz & Pereira, Pedro, 0, "The consumer loss of the minimum duration for mobile telephone calls," Telecommunications Policy, Elsevier, volume 33, issue 3-4, pages 200-206, April.
  2. Lukasz Grzybowski & Marc Bourreau & Angela Munoz-Acevedo, undated, "The Efficiency of State Aid for the Deployment of High-Speed Broadband: Evidence from the French Market," ERSA Working Paper Series, Economic Research Southern Africa, number v::y:2024:i::id:7.
  3. Lukasz Grzybowski & Monica Barahona-Varon & Toker Doganoglu, undated, "Socioeconomic Determinants of Awareness of Energy Labels and Their Influence on Purchase Decisions in the EU," ERSA Working Paper Series, Economic Research Southern Africa, number v::y:2025:i::id:151.
  4. Lukasz Grzybowski & Toker Doganoglu & Joanna Rachubik, undated, "Determinants of Willingness to Bear the Costs of Climate Action: Insights from Cross-Country Survey Data," ERSA Working Paper Series, Economic Research Southern Africa, number v::y:2025:i::id:161.

IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.