Thorsten Lübbers, "Is Cartelisation Profitable? A Case Study of the Rhenish Westphalian Coal Syndicate, 1893-1913", (2009), pp. 42.

Jörn Lüdemann, "Rechtsetzung und Interdisziplinarität in der Verwaltungsrechtswissenschaft", (2009).

Stefan Magen, "Rechtliche und ökonomische Rationalität im Emissionshandelsrecht", (2009).

Alexander Morell, Andreas Glöckner, and Emanuel Vahid Towfigh, "Sticky Rebates: Target Rebates Induce Non-Rational Loyalty in Consumers", (2009).

Andreas Nicklisch and Irenaeus Wolff, "Cooperation norms in multiple-stage punishment", (2009).

Nikos Nikiforakis, Hans-Theo Normann, and Brian Wallace, "Asymmetric Enforcement of Cooperation in a Social Dilemma", (2009).

Niels Petersen, "Abkehr von der internationalen Gemeinschaft? – Die aktuelle Rechtsprechung des US Supreme Court zur innerstaatlichen Wirkung von völkerrechtlichen Verträgen –", (2009).

Niels Petersen, "The Reception of International Law by Constitutional Courts through the Prism of Legitimacy", (2009).

Niels Petersen, "Review Essay: How Rational is International Law?", (2009).

Johannes Rincke and Christian Traxler, "Deterrence Through Word of Mouth", (2009).

Christian Traxler, "Majority Voting and the Welfare Implications of Tax Avoidance", (2009).

Christian Traxler and Joachim Winter, "Survey Evidence on Conditional Norm Enforcement", (2009).

Carl Christian von Weizsäcker, "Asymmetrie der Märkte und Wettbewerbsfreiheit", (2009).

Philipp Weinschenk, "Persistence of Monopoly and Research Specialization", (2009), pp. 27.

Heike Hennig-Schmidt and H. Geng, "Sensitivity to Corruption - An Experimental Investigation in China", (2009).

Heike Hennig-Schmidt, H. Geng, and G. Walkowitz, "Are groups Better in Capitalizing on Power than Individuals?", (2009).

Heike Hennig-Schmidt, H. Geng, and G. Walkowitz, "On Fairness in Symmetric and Asymmetric Ultimatum Games – An Experimental Investigation in China and Germany", (2009).

Heike Hennig-Schmidt and U. Leopold-Wildburger, "Path Dependence of Cooperation – An Experimental Investigation on the Prisoner’s Dilemma Game", (2009).

Heike Hennig-Schmidt, Reinhard Selten, and D. Wiesen, "How Payment Systems Affect Physicians' Provision Behavior - An Experimental Investigation", (2009).

Heike Hennig-Schmidt and Z. Yan, "Equity and Prominence in Asymmetric Bargaining – An Experimental Study on Aspiration Formation and Adaptation in Germany and P. R. China", (2009).