Journal
JOURNAL OF ENVIRONMENTAL ECONOMICS AND MANAGEMENT
Volume 120, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jeem.2023.102824
Keywords
Climate change; Extreme weather events; Natural disasters; Adaptation; Pro-social behavior; Online experiment
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Climate hazards not only destroy livelihoods and assets globally, but also foster solidarity within affected communities. A study conducted in the UK examined solidarity behavior in the context of flooding through an online experiment. Participants made adaptation decisions to reduce their own risk and could provide solidarity transfers to affected partners. The experiment revealed that participants showed less solidarity with non-adapted partners compared to adapted ones.
Climate hazards destroy the livelihoods and assets of millions of people worldwide, but also spur solidarity within affected communities. We conducted a pre-registered incentivized online experiment with a sample of 769 UK residents to better understand solidarity behavior framed in the context of flooding. In the experiment, participants make costly adaptation decisions that reduce their own risk of endowment loss. Moreover, they can make solidarity transfers to affected partners if unaffected themselves. Participants are matched with a partner who takes adaptation decisions, too. We experimentally vary the adaptation costs of the partner to be either the same (control condition) or heterogenous (known or uncertain). In the control condition, participants show less solidarity with non-adapted partners than with adapted ones. On average, the heter-ogenous adaptation cost treatments do not significantly affect observed solidarity transfers. Explorative analyses indicate, however, that differences in transfers to adapted and non-adapted partners are mediated by one's adaptation behavior. Under known heterogenous adaptation costs, risk-averse players (who adapted themselves) show as much solidarity with adapted as with non-adapted partners. Overall, the results suggest that information about adaptation cost heteroge-neity may promote solidarity after exogenous shocks when people cannot easily adapt proactively.
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