Leheyda, Nina, Patrick Beschorner and Kai Hüschelrath (2011), Ex-post Assessment of Merger Effects: The Case of Pfizer and Pharmacia, Journal of Advanced Research in Law and Economics 2 (1), 18-47.

Hüschelrath, Kai, Nina Leheyda and Patrick Beschorner (2011), The Deterrent Effect of Antitrust Sanctions: Evidence from Switzerland, Antitrust Bulletin 56 (2), 427-460.

Hüschelrath, Kai and Nina Leheyda (2010), A Methodology for the Evaluation of Competition Policy, European Competition Journal 6 (2), 397-425.

Hüschelrath, Kai, Nina Leheyda and Patrick Beschorner (2010), Assessing the Effects of a Road Surfacing Cartel in Switzerland, Journal of Competition Law and Economics 6 (2), 335-374.

Leheyda, Nina, Patrick Beschorner and Kai Hüschelrath (2011), The Effects of the Block Exemption Regulation Reform on the Swiss Car Market, European Competition Law Review 32 (10) , 41-48.

Hüschelrath, Kai, Nina Leheyda, Patrick Beschorner, Spyros Arvanitis and Martin Wörter (2009), Das Kartellgesetz und seine Wirkungen in der Praxis: Fallstudien, Die Volkswirtschaft - das Magazin für Wirtschaftspolitik 4-2009 , 16-19.

Hüschelrath, Kai, Nina Leheyda, Kathrin Müller and Tobias Veith (2012), Einführung in die Ökonometrie, in: Vol. 102 , Nomos Verlagsgesellschaft , Baden-Baden, 245-270

Hüschelrath, Kai, Nina Leheyda, Kathrin Schopen, Tobias Veith, Simon Reese and Christine Laabsch (2012), Anwendung quantitativ-ökonomischer Methoden der Schadensermittlung am Beispiel eines deutschen Zementkartells, in: Vol. 102 , Nomos Verlagsgesellschaft , Baden-Baden, 125-243

Hüschelrath, Kai, Nina Leheyda, Kathrin Schopen and Tobias Veith (2012), Einführung in empirische Methoden der Schadensermittlung, in: Vol. 102 , Nomos Verlagsgesellschaft , Baden-Baden, 79-124

Hüschelrath, Kai, Nina Leheyda, Kathrin Schopen and Tobias Veith (2012), Schadensermittlung und Schadensersatz bei Hardcore-Kartellen – Ökonomische Methoden und rechtlicher Rahmen, Vol. 102, Nomos Verlagsgesellschaft , Baden-Baden.

Voithofer, Peter, Judith Eidenberger, Nina Leheyda, Jenny Meyer, Bettina Müller, Christian Rammer, Margit Vanberg, Florian Holzinger and Julia Schmidmayer (2010), Vierter Österreichischer Kreativwirtschaftsbericht, REMAprint Druck- und Verlagsges. m.b.h. , Wien.

Hüschelrath, Kai, Nina Leheyda and Patrick Beschorner (2010), Erfahrungen mit der Evaluation des Schweizer Kartellgesetzes, in: Wernhard Möschel Wirtschaftsrecht und Wirtschaftspolitik, Vol. 241 , Nomos Verlagsgesellschaft , Baden-Baden, 231-280

Hüschelrath, Kai, Nina Leheyda, Patrick Beschorner, Georg Licht, Spyros Arvanitis, Martin Wörter and Heinz Hollenstein (2009), Fallstudien zu den Wirkungen des Kartellgesetzes, SECO Strukturberichterstattung, Vol. 44/2, Bern.

Grigolon, Laura, Nina Leheyda and Frank Verboven (2013), Public Support to the European Auto Industry, An Integrated Analysis, ZEW policy brief No. 13-03, Mannheim

Leheyda, Nina and Frank Verboven (2013), Scrapping Subsidies During the Financial Crisis - Evidence from Europe, ZEW Discussion Paper No. 13-079, Mannheim

Leheyda, Nina and Frank Verboven (2013), Scrapping Subsidies during the Financial Crisis - Evidence from the Europe , CEPR Discussion Papers , London.

Grigolon, Laura, Nina Leheyda and Frank Verboven (2012), Public Support for the European Car Industry: An Integrated Analysis, ZEW Discussion Paper No. 12-077, Mannheim

Leheyda, Nina, Patrick Beschorner and Kai Hüschelrath (2011), Ex-post Assessment of Merger Effects: The Case of Pfizer and Pharmacia (2003), ZEW Discussion Paper No. 11-035, Mannheim , published in : Journal of Advanced Research in Law and Economics

Leheyda, Nina, Patrick Beschorner and Kai Hüschelrath (2011), The Effects of the Block Exemption Regulation Reform on the Swiss Car Market, ZEW Discussion Paper No. 11-034, Mannheim , published in : European Competition Law Review

Hüschelrath, Kai and Nina Leheyda (2010), A Methodology for the Evaluation of Competition Policy, ZEW Discussion Paper No. 10-081, Mannheim , published in : European Competition Journal

Hüschelrath, Kai, Nina Leheyda and Patrick Beschorner (2009), Assessing the Effects of a Road Surfacing Cartel in Switzerland, ZEW Discussion Paper No. 09-082, Mannheim , published in : Journal of Competition Law and Economics

Leheyda, Nina (2008), Private Incentives to Innovate: Interplay of New Products and Brand-Name Reputation, ZEW Discussion Paper No. 08-120, Mannheim

Leheyda, Nina (2008), Geographical and Multi-product Linkages of Markets: Impact on Firm Equilibrium Interactions (Some Evidence from the European Car Market), ZEW Discussion Paper No. 08-119, Mannheim

Leheyda, Nina (2008), Market Power, Multimarket Contact and Pricing: Some Evidence from the US Automobile Market, ZEW Discussion Paper No. 08-118, Mannheim

Legler, Harald, Birgit Gehrke, Olaf Krawczyk, Ulrich Schasse, Christian Rammer, Nina Leheyda and Wolfgang Sofka (2009), Die Bedeutung der Automobilindustrie für die deutsche Volkswirtschaft im europäischen Kontext, Bundesministerium für Wirtschaft und Technologie (BMWi), Hannover, Mannheim

Hüschelrath, Kai, Nina Leheyda, Patrick Beschorner, Georg Licht, Spyros Arvanitis, Martin Wörter and Heinz Hollenstein (2008), Studien zu den Wirkungen des Kartellgesetzes, Staatssekretariat für Wirtschaft SECO, Bern, Mannheim und Zürich

Grimpe, Christoph, Nina Leheyda, Christian Rammer, Anja Schmiele and Wolfgang Sofka (2008), Sectoral Innovation Systems in Europe: Monitoring, Analysing Trends and Identifying Challenges - Machinery and equipment sector , EU Kommission, DG Enterprise, Mannheim

Grimpe, Christoph, Nina Leheyda, Christian Rammer, Anja Schmiele and Wolfgang Sofka (2008), Sectoral Innovation Systems in Europe: Monitoring, Analysing Trends and Identifying Challenges - Automotive Sector, EU Kommission, DG Enterprise, Mannheim

M&A-Report Oktober 2010

M&A-Report April 2010

M&A-Report Oktober 2009

02. – 05.2010 Competition Commission, London, United Kingdom

Prof. Dr. Kai Hüschelrath, Dr. Nina Leheyda, Conference, ZEW Conference on the Quantitative Analysis in Competition Assessments, Mannheim, Germany, 2010

Prof. Dr. Kai Hüschelrath, WHU Vallendar, Dr. Nina Leheyda, Conference, Ex-post Evaluation of Competition Policy, ZEW, Germany, 2009

2010: Mitherausgeber International Journal of the Economics of Business