Alexander specialises in competition economics, litigation and modelling. His areas of expertise include mergers, agreements, abuse of dominance, damages and auctions. Alexander has provided expert testimony for courts and has worked on competition matters in many jurisdictions, including Germany, France, the UK and at EU level. He has advised large international clients such as Google, Mastercard, Ryanair and Nokia. Alexander is listed in The International Who’s Who of Competition Lawyers & Economists, including among the five most highly regarded competition economists in Europe in the category Future Leaders.

Before joining Oxera, he completed a PhD in economics, focusing on game theory. He completed a secondment at the Chief Economist’s Department of the UK Financial Conduct Authority in 2014.

Selected project experience

  • Economic support to a digital platform company in the context of the proposed revision of German competition law (‘Digitalisierungsgesetz’) (2019–)
  • Support to a German renewable energy company in relation to a state aid decision by the European Commission (2019–)
  • Economic advice to a large transport operator in an EU member state in the context of an abuse of dominance investigation by the European Commission (2019–)
  • Estimation of cartel damages relating to the high-voltage cables cartel (2019–)
  • Advice to an energy company in the context of an abuse of dominance investigation relating to the German and Austrian markets (2019)
  • Support to a third party in the context of the investigation by the Bundeskartellamt into the RWE/E.ON asset swap (2018–19)
  • Expert advice to a German transport company in the context of an abuse of dominance follow-on litigation case (2018–)
  • Merger advice to a third party on a case in the German aviation sector (2017)
  • Advice to a victim of a potential abuse of dominant position in the context of a follow-on action in France (2017–18)
  • Merger advice on two cases in the waste management sector that affected several EU markets, including Germany (2016–17)
  • Estimation of cartel damages for a German car manufacturer in the context of multiple damages claims (2016–)
  • Advice to a financial services provider in the context of an investigation by the European Commission (2016)
  • Expert advice to Mastercard in relation to several damages claims by UK and international retailers relating to interchange fees (2015–18)
  • Advised Mastercard with respect to the European Commission investigation into inter-regional interchange fees (2015)
  • Advised Virgin Media in its complaint to Ofcom with respect to FAPL’s auction of EPL rights (2014)
  • Expert report in an abuse of dominance case before the Austrian Cartel Court involving long-term ‘take-or-pay’ gas contracts (2013–15)
  • Provided advice to Ryanair in relation to the European Commission inquiry into the attempted takeover of Aer Lingus (2012–13)
  • Advised a generic pharmaceutical company with respect to an Article 101 investigation by the European Commission (2012–13)
  • Advice to Ryanair in the OFT’s review of its acquisition of a minority stake in
    Aer Lingus (2011–13)
  • Quantification of damages for Nokia Corporation regarding cartel infringements in small-screen LCDs (2011–12)
  • Auction advice to an international telecoms operator in the context of the UK 4G spectrum auction (2011–12)
  • Advice to the Co-operative Group Limited in the context of its successful appeal to the Competition Appeal Tribunal on the OFT’s decision on vertical agreements in tobacco retailing (2011)
  • Auction advice to a sports business in the context of an expected contractual dispute with a key supplier (2011)

Selected publications

  • Gaigl, A. (2018), ‘Bidding studies in merger control’, Wirtschaft und Wettbewerb, WUW1263423.
  • Chowdhury, A. and Gaigl, A. (2016), ‘Economics of competition law and IP law’, in G. Pitruzzella and G. Musocolo (eds), Competition and Intellectual Property Law in the Pharmaceutical Sector: An International Perspective, Kluwer Law International.
  • Gaigl, A. and Kavanagh, J. (2014), ‘Minority shareholdings in merger control’, Competition Law Journal, 13:4, pp. 377–84.
  • Chowdhury, A. and Gaigl, A. (2014), ‘An effects-based approach to reverse payment settlements’, Competition Law Journal, 13:3, pp. 307–16.


  • PhD Economics, University of Mannheim, Germany
  • Diplom (MSc equivalent) Economics, Business and Engineering, University of Karlsruhe, Germany