• Behavioral and Experimental Economics, Market Design
• Strategic Behavior, Trust and Trustworthiness, Cooperation, Bargaining
• Experimental Methodology

• Herding, Social Preferences and (Non-)Conformity. Economics Letters 97(1), 74-80 (with Luca Corazzini). [Download working paper version]
• Experimental Studies on Solidarity. Logos Verlag, Berlin, Germany. ISBN 3-8325-1337-X. 2006. [Link to publisher]
• Self Centered and Other Regarding Behavior in the Solidarity Game. Journal of Economic Behavior and Organization 62(2), 293-303 (with Susanne Büchner and Giorgio Coricelli). [Download working paper version]
• Indirect Reciprocity in Cyclical Networks - An Experimental Study. Journal of Economic Psychology 26(5), 711-731 (with Maria Vittoria Levati). [Download working paper version]
• An Online Recruitment System for Economic Experiments. In: Kurt Kremer, Volker Macho (Hrsg.): Forschung und wissenschaftliches Rechnen. GWDG Bericht 63. Ges. für Wiss. Datenverarbeitung, Göttingen, 2004, 79-93. [Download]
• The Virtual Laboratory Infrastructure for Controlled Online Economic Experiments. In: Kurt Kremer, Volker Macho (Hrsg.): Forschung und wissenschaftliches Rechnen. GWDG Bericht 62, 59-73. Ges. für Wiss. Datenverarbeitung, Göttingen 2002 (with H.-Arno Jacobsen and Carsten Schmidt).

• The Dynamic Interplay of Inequality and Trust - An Experimental Study. Harvard Business School Working Paper, No. 08-026, October 2007. (with Axel Ockenfels and Peter Werner). [Download]
• Social Communication and Discrimination - A Video Experiment. (with Werner Güth and Ro'i Zultan). [Download]
• Strategic Uncertainty in Bargaining Games
  Older working paper version: Bounded Rationality in Bargaining Games: Do Proposers Believe That Responders Reject an Equal Split? [Download]
• The Online Recruitment System ORSEE 2.0 - A Guide for the Organization of Experiments in Economics. University of Cologne, Working Paper Series in Economics 10, 2004. [Download]

• Market Design, Reputation, Strategic Behavior
  • Engineering Trust: Strategic Behavior and the Production of Reputation Information (with Gary Bolton and Axel Ockenfels)
  • Market Safety, Participation and Efficiency - Simulations and Experiments (with Al Roth)
  • Can You Still Make a Deal on eBay - A natural experiment (with Axel Ockenfels)
  • Perceived Trustworthiness in Online Auctions - Amazon Gift Certificates Sold on eBay (with Axel Ockenfels)
  • Information Efficiency and Strategic Behavior in Markets - Parimutuel Betting and Double Auctions(with René Cyranek, Thomas Wolfgarten and Anthony Ziegelmeyer)
• Bargaining, Uncertainty, Communication
  • Strategic Argumentation and Communication in Bargaining (with Werner Güth and Ro'i Zultan)
  • Bargaining and Communication in Virtual and Real Worlds (with Mary Caravella and Al Roth)
• Solidarity, (Indirect) Reciprocity, Social Preferences
  • One for All, All for One - Experiments on Group Solidarity in a Dynamic Drop-Out Game
  • Social Comparisons at the Workplace - Evidence from a Real-Effort Experiment (with Axel Ockenfels and Peter Werner)

• Research Grant for the project "Group Decisions in Dilemma Situations: Theory, Experiment and Design", GEW Foundation Cologne, together with Jens Grosser and Axel Ockenfels
• Grant for equipment for the Cologne Laboratory for Economic Research, State Northrhine/Westfalia (WAP/HBFG), together with Axel Ockenfels and other members of his chair in Cologne

Amsterdam (ESA 2004); Berlin (Humboldt-U, 2003); Erfurt (ESA 2003); Cologne (GEW 2005); Jena; Harvard Econ (2006, 2007); HBS (2006, 2007), Magdeburg (GEW 2006); Montréal (ESA 2005); Penn State (2007); Strasbourg (ESA 2002); Wittenberg (GEW 2002).

• Former Terms
  • Summer Term 2005 - Experimental Economics (PhD level), University of Cologne
  • Winter Term 2004/2005 - Microeconomics, Excercises, Teacher Axel Ockenfels, Undergraduate Level, University of Cologne
  • Winter Term 2004/2005 - Energy Economics, Seminar, Teacher Axel Ockenfels, University of Cologne
  • Summer Term 2004 - Experimental Economics, Practical Seminar (PhD level), University of Cologne
  • Summer Term 2004 - Energy Economics, Seminar, Teacher Axel Ockenfels, University of Cologne
  • Summer Term 2003 - Economics of the Internet, Excercises, Teacher Carsten Schmidt, Friedrich Schiller University, Jena
  • Winter Term 2002/03 - Experimental Economics, Seminar, Teacher Werner Güth, Friedrich Schiller University, Jena

• ORSEE - Online Recruitment System for Economic Experiments (www.orsee.org)
• RePEcPHP, a PHP and MySQL based web interface to maintain a RePEc archive (Manual and source at RePEc)