Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/129839 
Year of Publication: 
2014
Series/Report no.: 
CeDEx Discussion Paper Series No. 2014-10
Publisher: 
The University of Nottingham, Centre for Decision Research and Experimental Economics (CeDEx), Nottingham
Abstract: 
In a novel experimental design we study public good games with dynamic interdependencies. More precisely, each agent's income at the end of a period serves as her endowment in the following period. In this setting growth and inequality arise endogenously allowing us to address new questions regarding their interplay and effect on cooperation levels. In stark contrast to standard public good experiments, we find that contributions are increasing over time even in the absence of punishment possibilities. In both treatments (with and w/o punishment) inequality and group income are positively correlated for poor groups (below median income), but negatively correlated for rich groups. There is very strong path dependence: inequality in early periods is strongly negatively correlated with group income in later periods. These results give new insights into why people cooperate and should make us rethink previous results from the literature on repeated public good games regarding the decay of cooperation in the absence of punishment.
Document Type: 
Working Paper

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