National reductions of CO2 emissions as a way to manage unilaterally the use of global environmental resources can be interpreted as the noncooperative provision of an international public good. This paper analyses two basic sources of inefficiency if countries abate their emissions...

The paper explores the prospects for international environmental cooperation in a context of limited enforcement, if we allow for side-payments between countries and sequential moves in the implementation of the agreement. The framework of the analysis is a static model of heterogenous countries...

Bubbles in asset markets have been documented in numerous experimental studies. However, all experiments in which bubbles occur pay dividends after each trading day. In this paper we study whether bubbles can occur in markets without dividends. We investigate the role of two features that are...

In a large scale newspaper experiment 5,132 readers of the German weekly, Die Zeit, participated in a three-person bargaining game. In our data analysis we focus on (1) the influence of age, gender, profession and the medium chosen for participation on bargaining behavior and on (2) the external...

It is commonly accepted that face-to-face communication inducescooperation. The experiment disentangles communication and socialeffect (replication of Roth, 1995) and examines the components of thesocial effect with the help of unilateral communication. Results suggestthat separate processes,...

In dieser Arbeit wird die gemeinschaftliche Produktion eines Informationsgutes unter besondererBerücksichtigung des Reputationsmechanismus am Beispiel von Ciao.com empirischuntersucht. Es werden die Mechanismen der erfolgreichen Interaktion zwischen privaten Personen,die zur gemeinschaftlichen...

This paper provides an overview on the simulations andexperiments we have done in order to better understandhuman-agent interaction in a market environment. We findthat the introduction of software agents does not necessarilyinduce a more efficient market. More surprisingly,information on the...

This paper studies how software agents influence the market behavior ofhuman traders. Programmed traders with a passive arbitrage seekingstrategy are introduced in a double auction market experiment with humansubjects in the laboratory. As a treatment variable, the influence ofinformation on the...

The goal of this paper is to provide an overview on the Virtual Laboratory infrastructurefor online economic experiments. We summarize our experience gainedfrom performing several economic experiments on the Internet. The experimentswe have run range from electronic markets to individual...

In a large scale newspaper experiment 5,132 readers of the German weekly, Die Zeit, participated in a three-person bargaining game. In our data analysis we focus on (1) the influence of age, gender, profession and the medium chosen for participation on bargaining behavior and on (2) the external...