Dr. Johannes Paha




Dr. Johannes Paha is a senior researcher at the Department of Business and Economics at Justus-Liebig-University in Giessen where a holds a position as Privatdozent. He also is a research associate at Stellenbosch University in South Africa, and he consults companies in antitrust cases (mergers, abuse of a dominant position, agreements and coordinated conduct).

Special interests

Dr. Paha does research mostly in the fields of industrial organization, applied microeconomics, and law and economics. In his work, he has predominantly focused on collusion and competition law compliance programs while also having done work on stochastic optimization, econometric demand estimation, and vertical restraints. Besides using game-theoretic models, he has also employed econometric and numerical methods along with case studies and online surveys. He has analyzed, for example, the circumstances that facilitate price fixing and other forms of illegal collusion, and he has developed concepts for preventing such welfare-lowering conduct. He regularly presents the results of his research both to the scientific community and to practitioners working, for example, in the field of compliance.


After having studied in Giessen and Milwaukee, he holds both a German diploma and a US Master's degree in economics. After completing his doctorate in 2011 on the simulation and econometric analysis of collusive agreements, he did research at Johns-Hopkins-University in Baltimore and taught at Johannes-Kepler-University in Linz. During this time, he also held a 5-year fellowship at the Center for Interdisciplinary Research in Bielefeld. Dr. Paha completed his Habilitation in 2017 with studies on cartel formation and on competition law compliance programs. His most recent research has been on alternative forms of collusion such as information exchange or agreements on list prices. He has been working as an economic expert in competition cases since 2009.


Editor of Anthologies
[1] Paha, J. (2016). “Competition Law Compliance Programmes – An Interdisciplinary Approach.” Springer publishers, Heidelberg

Publications in Refereed Journals
[2] Paha, J. (2018). “Cartel Conduct and Antitrust Compliance with Imperfect Information about Enforcement Risk.” Journal of Institutional and Theoretical Economics. Vol. 174 No. 3, pp. 448-475.
[3] Herold, D. und Paha, J. (2018). „Cartels as Defensive Devices: Evidence from Decisions of the European Commission 2001-2010.“ Review of Law and Economics. Vol. 14 No. 1, 1-31.
[4] Paha, J. (2017). “Antitrust Compliance: Managerial Incentives and Collusive Behavior.” Managerial and Decision Economics. Vol. 38 No. 7, pp. 992-1002
[5] Paha, J. (2017). “The Value of Collusion with Endogenous Capacity and Demand Uncertainty.” The Journal of Industrial Economics. Vol. 65 No. 3, pp. 623-653
[6] Scheld, D., Paha, J. und Fandrey, N. (2016). „A risk governance approach to managing antitrust risks in the banking industry.“ European Competition Journal. Vol. 12 No. 1, pp. 113-136
[7] Paha, J., Rompf, D., Warnecke, C. (2013). “Customer choice patterns in passenger rail competition.” Transportation Research Part A. Vol. 50, pp. 209-227
[8] Paha, J. (2012). “Using Accounting Data in Cartel Damage Calculations – Blessing or Menace?” European Journal of Law and Economics. Vol. 34 No. 2, pp. 241-263
[9] Paha, J. (2011). “Empirical Methods in the Analysis of Collusion.” Empirica. Vol. 38 No. 3,        pp. 389-415
[10] Lyra, M., Paha, J., Paterlini, S. and Winker, P. (2010). „Optimization Heuristics for Determining Internal Rating Scales.“ Computational Statistics and Data Analysis. Vol. 54 No. 11, pp. 2693-2706

Publications in Journals and Books
[11] Paha, J. (2018).
„Warum befolgen wir Recht? – Rechtsbefolgung aus ökonomischer Perspektive.“ Forthcoming: Mohr Siebeck. Why do we obey the law? An Economic Perspective
[12] Griesinger, M., Paha, J. (2017). „The Economic Analysis of Buyer Power in the Food Retail Industry.“
Austrian Competition Journal, April 2017, 43-50
[13] Paha, J., Ullmann, M. (2017 a). „Konzeption zur wirtschaftlichen Ausgestaltung kartellrechtlicher Compliance-Maßnahmen.“ Corporate Compliance Zeitschrift, 02/2017, 63-68. Concept for an Effective and Efficient Design of Competition Law Compliance Measures
[14] Paha, J., Ullmann, M. (2017 b).
„Leitfaden zum Einsatz quantitativer Verfahren in der Aufdeckung kartellrechtlichen Fehlverhaltens.“ Corporate Compliance Zeitschrift, 01/2017, 2-7. Guidelines for the Application of Quantitative Screening Methods for the Detection of Collusion
[15] Paha, J., Ullmann, M., Köppl, C. (2016).
„Hinweise zur Beurteilung des Risikos kartellrechtlicher Verstöße am Beispiel des Konsumgütersektors.“ Corporate Compliance Zeitschrift. Vol. 06-2016, 274-280. Comments on the Assessment of Cartelization Risks in the Consumer Goods Industry
[16] Götz, G., Herold, D. and Paha, J. (2016). „Results of a Survey in Germany, Austria, and Switzerland on how to Prevent Violations of Competition Laws.“ Competition Law Compliance Programmes – An Interdisciplinary Approach. Johannes Paha (ed.).
Springer: Heidelberg
[17] Götz, G. and Paha, J. (2015). „Screening und das Compliance-Risikomodell: Konzepte zur unternehmensinternen Aufdeckung von Verstößen gegen das Kartellverbot“ Wirtschaft und Wettbewerb. Vol. 12-2015, 1198-1210. Screening and a Model of Compliance Risks: Concepts for Detecting Violations of Competition Laws
[18] Götz, G., Herold, D. and Paha, J. (2015).
"Forschungsprojekt Kartellrechts-Compliance: Wie Compliance-Maßnahmen Kartellrechtsverstöße verhindern und zum Unternehmenserfolg beitragen können." FIW-Schriftenreihe. Vol. 249. Carl Heymanns Verlag: Köln. Competition Law Compliance: How Compliance Measures Prevent Violations of Competition Laws and Contribute to Firm Success
[19] Götz, G., Herold, D. and Paha, J. (2015).
„Kartellrechtliche Compliance-Programme – Vom Risikobewusstsein zur Risikosteuerung.“ Compliance 2015 Perspektiven einer Entwicklung. Berufsverband der Compliance Manager (ed.). 335-364. Helios: Berlin. Competition Law Compliance Programs: From the Awareness to the Control of Compliance Risks
[20] Paha, J., Rink, C. and Weißenberger, B.E. (2014).
„Einsatz industrieökonomischer Methoden in der Standortplanung: Bedeutung (auch) für den Erhalt von Regionalbeihilfen.“ Controlling. Vol. 12/2014 (26. Jg.), 728-733. How to Use Methods from Industrial Organization to Support Location Decisions
[21] Paha, J. (2013).
„Die neuen Leitlinien für Regionalbeihilfen 2014-2020 aus ökonomischer Sicht.“ Wirtschaftsdienst. Vol. 11/2013, 771-777. The New Guidelines on Regional State Aid for 2014-2020: An Economic Perspective
[22] Paha, J. and Zwerenz, A.-L. (2013). „Staatliche Beihilfen und Beihilfenkontrolle im Agrarsektor.“ Wirtschaftsdienst. Vol. 01/2013, 46-51. State Aid Control in the Agricultural Industry


Principles of Economics