Getting Used to Risks: Reference Dependence and Risk Inclusion
AbstractExperimental and field evidence show that people perceive and evaluate new risks differently from risks that are common. In particular, people get used to the presence of certain risks and become less eager to avoid them. We explain this observation by including risks in the reference states of individuals, which requires a more general concept of the reference state than has previously been considered in the literature. We find two effects. First, the inclusion of the risk in the reference state changes its evaluation. A risk being present on the market induces a self-enforcing process of increasing acceptance of this risk without any new information becoming available or people's tastes changing. We term this the risk inclusion effect. Second, a risk with lower inherent (reference-independent) utility may be preferred to a risk with higher inherent utility if individuals are more used to accepting the former than the latter. This leads to ineffcient decisions if habituation is seen as contributing less to welfare than inherent utility. Both effects have implications for the optimal regulation of risks.
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Bibliographic InfoPaper provided by Sonderforschungsbereich 649, Humboldt University, Berlin, Germany in its series SFB 649 Discussion Papers with number SFB649DP2005-036.
Length: 28 pages
Date of creation: May 2005
Date of revision:
habituation; risk perception; reference-dependent preferences; WTA/WTP disparity; health risk;
Find related papers by JEL classification:
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
- I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-10-29 (All new papers)
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