Economics - Research Publications

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Subject: Experiments × Subject: C91 - Laboratory × Author: Nemes, Veronika ×

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    Impact of risk and uncertainty in the provision of local and global environmental goods: an experimental analysis
    GANGADHARAN, LATA ; NEMES, VERONIKA ( 2005-11)
    Uncertainties and risks in the decision making process are abundant in the area ofenvironmental economics, irrespective of whether the problems being discussed are local orglobal. This paper uses laboratory evidence from public goods games to examine how inpayoff equivalent situations, decision makers contribute towards local or globalenvironmental goods, in the presence of risk and uncertainties in the provision of these goods.We use a within subject design that allows for comparisons across seven different treatmentsin which subjects are exposed to internal (strategic) and external (environmental) risk anduncertainty. Our results show that the location of the risk and uncertainty matters, withsubjects moving away from the external uncertainty in favor of internal uncertainty, whenthat uncertainty is associated with the local environmental good. When the uncertainty relatesto the global environmental good, subjects face both external and internal uncertainty on thesame good leading to a significant drop in contributions. We find that in the presence of riskand uncertainty subjects use feedback from other members of their group when decidingabout future contributions. The reward for research and development and innovation iscaptured in the experimental design by the increased probability of obtaining the desiredoutcome in the endogenous probability treatment. Subjects seem to understand this incentiveand contribute more towards global goods in this treatment.