Martin Hellwig, "A Reconsideration of the Jensen-Meckling Model of Outside Finance [Award for the Most Significant Paper in 2009]," Journal of Financial Intermediation 18, 495-525 (2009).

Martin Hellwig, "Wenn Feuerlöscher als Brandbeschleuniger wirken, sollte man sie überholen oder abmontieren!," ifo Schnelldienst 62, 3-18 (2009).

Martin Hellwig, "A Note on Deaton's Theorem on the Undesirability of Nonuniform Excise Taxation," Economics Letters 108, 186-188 (2009).

Martin Hellwig, "Systemic Risk in the Financial Sector: An Analysis of the Subprime-Mortgage Financial Crisis," De Economist 157 (2), 129-207 (2009).

Martin Hellwig and Thomas Hartmann-Wendels, "Arbeitsweise der Bankenaufsicht vor dem Hintergrund der Finanzkrise," Gutachten, Institut der deutschen Wirtschaft (2009).

Yoan Hermstrüwer, "Philosophie und Recht in Zeiten des Terrors. Terrorismus aus Perspektiven der Philosophie: Jürgen Habermas und Jacques Derrida," Humboldt Forum Recht , 30-51 (2009).

M. Ibanez, S. Czermak, and Matthias Sutter, "Searching for a better deal – On the influence of group decision making, time pressure and gender on search behavior," Journal of Economic Psychology 30, 1-10 (2009).

Bernd Irlenbusch, Özgür Gürerk, and Bettina Rockenbach, "Motivating Teammates: The Leader’s choice between Positive and Negative Incentives," Journal of Economic Psychology 30, 591-607 (2009).

K. Jaeger and Wolfgang Kuhle, "The Optimum Growth Rate for Population Reconsidered," Journal of Population Economics 22, 23-41 (2009).

Sebastian Kube, Michele Bernasconi, Luca Corazzini, and Michel André Maréchal, "Two are better than One! Individuals’ Contributions to "Unpacked" Public Goods," Economics Letters 104, 31-33 (2009).

Sebastian Kube and Johannes Kaiser, "Behavioral Finance meets Experimental Macroeconomics: On the Determinants of Currency Trade Decisions," Journal of Behavioral Finance 10, 44-54 (2009).

Sebastian Kube and Clemens Puppe, "(When and How) Do Voters Try to Manipulate? Experimental Evidence from Borda Elections," Public Choice 139, 39 ff. (2009).

Thorsten Lübbers, "Unternehmenskooperation auf dem Gebiet gewerblicher Schutzrechte in der chemischen, pharmazeutischen und elektrotechnischen Industrie, 1880-1994," Vierteljahreszeitschrift für Sozial- und Wirtschaftsgeschichte 96, 147-172 (2009).

W. Luhan, M. Kocher, and Matthias Sutter, "Group polarization in the team dictator game reconsidered," Experimental Economics 12, 26-41 (2009).

Stefan Magen, "Grundfälle zu Art. 4 III GG," Juristische Schulung (JuS) , 995-999 (2009).

Frank P. Maier-Rigaud and Michael Adam, "The Law and Economics of Article 82 EC and the Commission Guidance Paper on Exclusionary Conduct," Journal of Competition Law (ZWeR – Zeitschrift für Wettbewerbsrecht) 1, 131-146 (2009).

Frank P. Maier-Rigaud, Per Hellström, and Friedrich Wenzel Bulst, "Remedies in European Antitrust Law," Antitrust Law Journal 76, 43-63 (2009).

Frank P. Maier-Rigaud and Kay Parplies, "EU Merger Control Five Years after the Introduction of the SIEC test: What explains the drop in Enforcement Activity?," European Competition Law Review (ECLR) 11, 565-579 (2009).

Andreas Nicklisch and Dorothea Alewell, "Wage differentials and social comparison: An experimental study of interrelated ultimatum bargaining," International Review of Law and Economics 29, 210-220 (2009).

Andreas Nicklisch, U. Cantner, Werner Güth, and T. Weiland, "Competition in product design: An experiment exploring innovation behavior," Metroeconomica 60, 724-752 (2009).