xmlui.dri2xhtml.METS-1.0.item-contributor-funder:
European Commission Ministerio de Economía y Competitividad (España)
Sponsor:
We gratefully acknowledge the financial help of the European Union’s Horizon
2020 research and innovation programme under the Marie Sklodowska-Curie grant agree-
ment No 891124; MINECO-FEDER (PID2021-126892NB-I00, PID2019-108718GB-I00);
Basque Government IT1461-22
Project:
info:eu-repo/grantAgreement/EC/H2020/891124 Gobierno de España. PID2021-126892NB-I00 Gobierno de España. PID2019-108718GB-I00
We experimentally study a game in which success requires a sufficient total contribution by members of a group. There are significant uncertainties surrounding the chance and the total effort required for success. A theoretical model with max-min preferences tWe experimentally study a game in which success requires a sufficient total contribution by members of a group. There are significant uncertainties surrounding the chance and the total effort required for success. A theoretical model with max-min preferences towards ambiguity predicts higher contributions under ambiguity than under risk. However, in a large representative sample of the Spanish population (1,500 participants) we find that the ATE of ambiguity on contributions is zero. The main significant interaction with the personal characteristics of the participants is with risk attitudes, and it increases contributions. This suggests that policymakers concerned with ambiguous problems (like climate change) do not need to worry excessively about ambiguity[+][-]