Projects (selected)

• Economics consultancy in an appeals case on a market review decision in relation to the broadcasting transmission market, Study for an European Operator (2012-2013)

• Margin squeezing in ULL based voice products, Study for European Operator (2012)

• Business communication services for multi-site an multinational companies in Europe, Study for ECTA (2012)

• Principles methodology and procedures of ex ante margin squeeze tests, Study für ECTA (2012)

• Advising the European Commission recommendation during preparation of Recommendation on  Non-Discrimination and Functional Separation, Study for the European Commission (2012)

• Competitive Effects of a Telecoms Merger, Study for Kabel Deutschland (2012)

• NGA Progress in Europe assessing the application of the NGA Recommendation and the impact on market outcomes in very high-speed braodband, Study for ECTA (2011 ff.)

• Consultancy on Licensing of FM radio broadcasting spectrum in Greece, Study for the Greek Ministry of Infrastructure, Transport and Networks (2011-2012)

• Consultancy on 2nd round market reviews in Greece (performance of market reviews under the EU Regulatory Framework for markets susceptible to ex ante regulation, involving: (1) data collection and analysis, (2) drafting of consultation documents and reports on the consultation as well as (3) support during notification of draft measures to European Commission, Study for the Greek NRA EETT (2009-2012)

• Consultancy on refarming and new assignment of rights of use in the 900 and 1800 MHz band in Greece, Study for the Greek NRA EETT (2011ff.)

• Review of broadcasting transmission markets in Belgium and notified remedies, Study for Telenet (2011)

• Consultancy on regulatory market reviews in Jordan (market reviews under a market-based regulatory approach, involving data collection and analysis, drafting of consultancy documents as well as Final Decisions and Explanatory Memoranda), Study for the Jordan NRA TRC (2009-2011)

• Consultancy on 1st round market reviews in Greece (carrying out of market reviews under the EU Regulatory Framework for markets susceptible to ex ante regulation, involving: (1) data collection and analysis, (2) drafting of consultation documents and reports on the consultation as well as (3) support during notification of draft measures to European Commission; and support on implementation of regulatory measures (price caps, WLR, reference offers, cost accounting and accounting separation, cost of universal service obligations for telephone directories), Study for the Greek NRA EETT (2005-2011)

• Staff Training in Competition Economics for the South African NRA ICASA (2010)

• Development of the auction design for 0.8, 1.8 (digital dividend), 2.0 and 2.6 GHz mobile frequencies in Germany in 2010), Study for the German NRA BNetzA (2009-2010)

• Dr. Stumpf being economic expert in a case before the High Court related to unreasonable bundling and margin squeezes (ComReg vs. EirCom), Expert for the Irish NRA ComReg (2009)

• Consultancy on 1st round market reviews in Romania (Carrying out of market reviews under the EU Regulatory Framework for markets susceptible to ex ante regulation, involving: (1) data collection and analysis, (2) drafting of consultation documents and reports on the consultation as well as (3) support during notification of draft measures to European Commission), Study for the Romanian NRA ANC (2007-2009)

• Effectiveness of telecommunications regulation in six countries "Regulatory Benchmark", Comparative study for the German Federal Ministry of Economics and Technology BMWi (2007-2008)

• Study on "Spectrum Policies and Radio Technologies Viable In Emerging Wireless Societies" (SPORT VIEWS) (2006-2007), Study for the European Commission

• Auction design for 3,5 GHz Broadband Wireless Access frequencies, Study for the Gerrman NRA BNetzA (2006)

• Dr. Stumpf being one of three Economic Advisors concerning the review of the Relevant Markets Recommendation, Study for the European Commission (2005-2006)

• Assistance for the preparation of regulatory documents regarding price regulation, licensing and spectrum for fixed wireless access, Study for the Albanian NRA TRE (2005-2006)

• Increasing flexibility in spectrum management, Study for the German NRA BNetzA (former RegTP) (2005)

• Consultancy on price squeeze, bundling and related price discrimination, Study for the Dutch NRA OPTA (2004)

• Wholesale line rental as a potential remedy for the markets for fixed telephony, Study for the Dutch NRA OPTA (2004)

• Assessing unfair burden and the net cost of universal service obligations, Study for the Irish NRA ComReg (2004)

• Enhancing the capacity of the institutions responsible for the regulation of the telecommunications sector, Study for the Cypriot NRA OCTPR (2004)

• Regulations of market entry and licensing, Study for the Turkish NRA ICTA (2004)

• Consultancy on 1st round market reviews in Ireland (Carrying out of market reviews under the EU Regulatory Framework for markets susceptible to ex ante regulation, involving: (1) data collection and analysis, (2) drafting of consultation documents and reports on the consultation as well as (3) support during notification of draft measures to European Commission), Study for the Irish NRA ComReg (2003-2004)

Additionally we refer to the WIK Discussion Papers, where we publish many results from our research projects.