An Online Recruitment System for Economic Experiments

In this paper we introduce the Online Recruitment System for Economic Experiments (ORSEE). With this software experimenters have a free, convenient and very powerful tool to organize their experiments and sessions in a standardized way. Additionally, ORSEE provides subject pool statistics, a laboratory calendar, and tools for scientific exchange. A test system has been installed in order to visually support the reader while reading the paper.experiments

Bounded Rationality in Bargaining Games: Do Proposers Believe That Responders Reject an Equal Split?

Puzzled by the experimental results of the 'impunity game' by Bolton and Zwick (1995) we replicate the game and alter it in a systematic manner. We find that although almost nobody actually rejects an offered equal split in a bargaining game, proposers behave as if there would be a considerably large rejection rate for equal splits. This result is inconsistent with existing models of economic decision making. This includes models of selfish players as well as models of social utility and reciprocity, even when combined with erroneous decision making. Our data suggests that subjects fail to foresee their opponent's decision even for one step in our simple bargaining games. We consider models of bounded rational decision making such as rules of thumb as explanations for the observed behavioral pattern.ultimatum game, dictator game, impunity game, social utility, bounded rationality

The Economics of Color: A Null Result

Color research has a long tradition in psychology, consumer behavior, and marketing research. The literature suggests that exposure to colors influences mood and emotions of humans as well as their attitudes towards products. This paper makes two contributions. First, we review the existing literature in science and psychology on the effects of environmental colors (red and blue) on physiological functions, mood, and consumer/economic decision-making, insofar it may be potentially relevant to experimental and behavioral economists. Second, we conduct a laboratory experiment with a typical experimental economics subject pool testing the effects of environmental colors red and blue on decision-making in an incentivized Ultimatum Game experiment. We find no statistically significant effect. However, we also cannot replicate previous results of exposure to colors red and blue on mood as measured by established questionnaire instruments. Our results suggest that experimental economists do not need to worry about the potential confound of colors in economic decision-making.Series: Department of Strategy and Innovation Working Paper Serie

Imperfect public monitoring with costly punishment - An experimental study

This paper experimentally investigates the effects of a costly punishment option on cooperation and social welfare in long finitely repeated public good contribution games. In a perfect monitoring environment increasing the severity of the potential punishment monotonically increases both contributions and the average net payoffs of subjects. In a more realistic imperfect monitoring environment, we find a U-shaped relationship between the severity of punishment and average net payoffs. Access to a standard punishment technology in this setting significantly decreases net payoffs, even in the long run. Access to a very severe punishment technology leads to roughly the same payoffs as with no punishment option, as the benefits of increased cooperation offset the social costs of punishing.public good contribution experiments; imperfect monitoring; welfare implications of costly punishment

Time Inconsistency, Sophistication, and Commitment An Experimental Study

We experimentally study the relationship between time inconsistency, sophistication about time inconsistency, and self-commitment. Previous research has interpreted demand for commitment devices as evidence for the sophistication of a time-inconsistent decision-maker. In our laboratory experiment, we attempt to measure sophistication directly by way of a cognitive test. We then test the hypothesis that people who are both time-inconsistent and show high cognitive capacity take up commitment devices when offered in the strategic game between their current and their future self. For experimental laboratory commitment choices, we cannot detect a moderating effect of cognition on commitment demand of time-inconsistent subjects. However, we find that the existence of time-inconsistent preferences and sophistication (proxied by cognitive performance) can predict the demand for savings commitment in our hypothetical survey vignette question.Series: Department of Strategy and Innovation Working Paper Serie

Herding, Social Preferences and (Non-) Conformity

We study the role of social preferences and conformity in explaining herding behavior in anonymous risky environments. In an experiment similar to information cascade settings, but with no private information, we find no evidence for conformity. On the contrary, we observe a significant amount of non-conforming behavior, which cannot be attributed to errors.herding, information cascades, conformity, non-conformity, laboratory experiments

The effect of a "none of the above" ballot paper option on voting behavior and election outcomes

We investigate how voter and political candidate behavior and election results are affected by an explicit blank vote option “None of the above” (NOTA) on the ballot paper. We report evidence from two online survey experiments conducted in the weeks preceding the 2016 U.S. Presidential Election and the 2016 Austrian run-off election for President. We subjected participants either to the original ballot paper or to a manipulated ballot paper where we added a NOTA option. We find that introducing a NOTA option on the ballot increases participation and reduces the vote shares of non-establishment candidates. NOTA is chosen more frequently by voters with a protest motive, who are either unhappy with the candidate set or with the political establishment in general. Using a laboratory experiment we further explore the reaction of political candidates to the existence of a NOTA option. We replicate our field evidence that NOTA diverts votes from a protest option (e.g. an inferior candidate or policy), thus decreasing the likelihood that the protest option actually wins. However, (establishment) candidates anticipate this shift and become more likely to make unfair policy proposals when NOTA is present. As a result, a NOTA option on the ballot in our laboratory setting improves efficiency but increases inequality.Series: Department of Strategy and Innovation Working Paper Serie

Engineering Trust - Reciprocity in the Production of Reputation Information

Reciprocity in feedback giving distorts the production and content of reputation information in a market, hampering trust and trade efficiency. Guided by feedback patterns observed on eBay and other platforms we run laboratory experiments to investigate how reciprocity can be managed by changes in the way feedback information flows through the system, leading to more accurate reputation information, more trust and more efficient trade. We discuss the implications for theory building and for managing the redesign of market trust systems.market design, reputation, trust, reciprocity, eBay

Self Centered and Other Regarding Fairness in the Solidarity Game

This paper revisits and extends the experiment on the solidarity game by Selten and Ockenfels (1998). We replicate the basic design of the solidarity game and extend it in order to test the robustness of the 'fixed total sacrifice' effect and the applied strategy method. Our results only partially confirm the validity of the fixed total sacrifice effect. In a treatment with constant group-endowment rather than constant winner-endowment the predominance of the 'fixed total sacrifice' behavior is replaced by 'fixed relative gift' behavior. We additionally introduce a measure of personality characteristics and compare its specific components with pro-social gift behavior in our experiments. We don't find correlations between actual gift behavior and measures of empathy-driven pro-social behavior used in social science.Experimental Economics; Game theory; Fixed Total Sacrifice; Solidarity

Let the Dummy Talk! - Unilateral Communication and Discrimination in Three-Person Dictator Experiments -

To explain why pre-play communication increases cooperation in games, one refers to a) strategic causes such as efficient communication or reputation effects, and b) changes in the utilities due to social processes. Hitherto experimental support for both explanations is mixed and confounded. Our experimental design eliminates all strategic factors and allows to focus on the effects of communication processes. We clearly find social effects, but none of revealed anonymity or salient communication. The social processes invoked are very heterogeneous but not irregular for different communicators.bargaining, communication, social utility, n-persons dictator game