Calendrier du 20 novembre 2023
Roy Seminar (ADRES)
Du 20/11/2023 de 17:00 à 18:30
R1-09
KE Shaowei(China Europe International Business School (CEIBS).)
KE Shaowei(China Europe International Business School (CEIBS).)
Decision Making Under Multidimensional Uncertainty
Choice alternatives are often multidimensional and risky, but how to evaluate them is unclear. Three approaches are in sharp contrast: One aggregates all dimensions and then evaluates risk, one works reversely, and one evaluates each dimension and the associated risk recursively following an exogenous linear order on dimensions. We characterize a model that nests them as special cases. The decision maker's preference reveals how she brackets and orders the dimensions, based on which she evaluates risk recursively. Using our framework, we derive a model with generalized brackets and a recursive model with a subjective weak order on dimensions.
Du 20/11/2023 de 12:30 à 13:30
r&;
RODEMEIER Matthias (Bocconi)
*
Paris Migration Economics Seminar
Du 20/11/2023 de 12:30 à 13:30
R1-14
GIRAY AKSOY CEVAT ((EBRD & Kings College London))
*Corruption Exposure, Political Trust, and Immigrants
Using large-scale survey data covering 38 countries and exploiting origin-country variation across cohorts and surveys, we show that immigrants exposed to institutional corruption before migrating exhibit higher levels of political trust in their new country. Higher trust is observed for national political institutions only and does not carry over to other supra-national institutions and individuals. We report evidence that higher levels of political trust among immigrants persist, leading to greater electoral participation and political engagement in the long run. The impact of home-country corruption on political trust in the destination country is further amplified by large differences in income and democracy levels between the two countries. However, the effect is lessened by exposure to media providing independent information about institutional performance in the destination country. Finally, our extensive analyses indicate that self-selection into host countries based on trust is highly unlikely and the results also hold when focusing only on forced migrants who were unlikely to have been subject to selection.
Du 20/11/2023 de 12:00 à 13:30
RODEMEIER Matthias (Bocconi)
*
Régulation et Environnement
Du 20/11/2023 de 12:00 à 13:30
R1-09
RODEMEIER Matthias (Bocconi)
*Willingness to Pay for Carbon Mitigation: Field Evidence from the Market for Carbon Offsets
What do markets for voluntary climate protection imply about people’s valuations of environmental protection? I study this question in a large-scale field experiment (N=255,000) with a delivery service, where customers are offered carbon offsets that compensate for emissions. To estimate demand for carbon mitigation, I randomize whether the delivery service subsidizes the price of the offset or matches the offset’s impact on carbon mitigation. I find that consumers are price-elastic but fully impact-inelastic. This would imply that consumers buy offsets but their willingness to pay (WTP) for the carbon it mitigates is zero. However, I show that consumers can be made sensitive to impact through a simple information treatment that increases the salience of subsidies and matches. Salient information increases average WTP for carbon mitigation from zero to 16 EUR/tCO2. Two complementary surveys reveal that consumers have a limited comprehension of the carbon-mitigating attribute of offsets and, as a result, appear indifferent to impact variations in the absence of information. Finally, I show that the widely-used contingent valuation approach poorly captures revealed preferences: Average hypothetical WTP in a survey is 200 EUR/tCO2, i.e., 1,150% above the revealed preference estimate.