Can Askan Mavi

Internal seminars

Can Askan Mavi

Common pool resource management and heterogeneous risk perceptions

IBD Salle 16

Îlot Bernard du Bois - Salle 16

5-9 boulevard Maurice Bourdet
13001 Marseille

Thursday, March 12 2020| 12:30pm to 1:45pm

Gaëtan Fournier: gaetan.fournier[at]
Raghul Venkatesh: raghul.venkatesh[at]


Motivated by recent important discussions on the issue of risk perceptions for climate change-related events, we introduce a non-cooperative game setting where agents manage a common pool resource under a potential risk, and risk perceptions within the agents’ population are heterogeneous. Focusing on the effect of the polarization level and other population features (such as the intra-group structure), we show that the type of bias (overestimation versus underestimation biases) and the resource quality level before and after the occurrence of the shift have first-order importance on the qualitative nature of behavioral adjustments and on the pattern of resource conservation. When there are non-uniform biases within the population, the intra-group structure of the population qualitatively affects the degree of resource conservation. Moreover, unbiased agents may react in non-monotone ways to changes in the polarization level when faced with agents exhibiting different types of bias. Finally, the size of the unbiased agents’ sub-population does not qualitatively affect the effect of changes in the polarization level on individual behavioral adjustments, even though it affects the magnitude of the change.