Abstract
When risks threaten, cognitive mechanisms bias people toward action or inaction. Fearsome risks are highly available. The availability bias tells us that this leads people to overestimate their frequency. Therefore, they also overreact to curtail the likelihood or consequences of such risks. More generally, fear can paralyze efforts to think clearly about risks. We draw on a range of environmental risks to show the following: (1) Fear leads us to neglect probability of occurrence; (2) As fearsome environmental risks are usually imposed by others (as externalities), indignation stirs excess reaction; (3) We often misperceive or miscalculate such risks. Two experiments demonstrate probability neglect when fearsome risks arise: (a) willingness-to-pay to eliminate the cancer risk from arsenic in water (described in vivid terms) did not vary despite a 10-fold variation in risk; (b) the willingness-to-accept price for a painful but non dangerous electric shock did not vary between a 1 and 100% chance. Possible explanations relate to the role of the amygdala in impairing cognitive brain function. Government and the law, both made by mortals and both responding to public pressures, similarly neglect probabilities for fearsome risks. Examples relating to shark attacks, Love Canal, alar and terrorism are discussed.
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References
Afifi AK, Bergman RA (2005) Functional neuroanatomy: text and atlas. McGraw-Hill Companies, New York, p p 292
Alkahami AS, Slovic P (1994) A psychological study of the inverse relationship between perceived risk and perceived benefit. Risk Anal 14: 1085–1096
Bechara A et al (2001) Decision-making deficits, linked to a dysfunctional ventromedial prefrontal cortex, revealed in alcohol and stimulant abusers. Neuropsychologia 39(4): 376–398
Elster J (1983) Explaining technical change. Cambridge University Press, Cambridge
Fuster JM (2001) The prefrontal cortex—an update: time is of the essence. Neuron 30(2): 319–333
Gibbs LM (1998) Love canal: the story continues. New Society Publishers, New York
Hamilton J, Viscusi WK (1999) Calculating risks: the spatial and political dimensions of hazardous waste policy. MIT Press, Cambridge
Johansson-stenman D (2008) Mad cows, terrorism and junk food: should public policy reflect perceived or objective risks?. J Health Econ 27: 234–238
Johnson E, Hershey J, Meszaros J et al (1993) Framing, probability distortions, and insurance decisions. J Risk Uncertain 7: 35–51
Kahneman D, Tversky A (1979) Prospect theory: an analysis of decision under risk. Econometrica 47: 263–291
Kuran T, Sunstein C (1999) Availability cascades and risk regulation. Stanf Law Rev 51: 683–768
Loewenstein G, Lerner JS (2003) The role of affect in decision making. In: Davidson R, Goldsmith H, Scherer K (eds) Handbook of affective science. Oxford University Press, Oxford, pp 619–642
Loewenstein GF, Weber EU, Hsee CK et al (2001) Risk as feelings. Psychol Bull 127: 267–286
Nadler R (2009) What was I thinking? Handling the hijack. Business Management 16. URL: http://www.busmanagement.com/article/What-Was-I-Thinking-Handling-the-Hijack/ (accessed April 15, 2010)
Oates W (2002) The arsenic rule: a case for decentralized standard setting. Resources 147: 16–18
Patt A, Zeckhauser R (2000) Action bias and environmental decisions. J Risk Uncertain 21(1): 45–72
Rothschild M (2001) Terrorism and you—the real odds. Policy matters, AEI-Brookings joint center for regulatory studies. http://www.aei-brookings.org/policy/page.php?id=19#top
Rottenstreich Y, Hsee C (2001) Money, kisses, and electric shocks: on the affective psychology of risk. Psychol Sci 12: 185–190
Sandman P, Weinstein ND, Hallman WK (1998) Communications to reduce risk underestimation and overestimation. Risk Decis Policy 3: 93–108
Slovic P (2000) The perception of risk. Earthscan Publications, London
Sunstein C (2002) Risk and reason: safety, law, and the environment. Cambridge University Press, Cambridge
Sunstein C (2002) Probability neglect: emotions, worst cases, and law. Yale Law J 112: 61–107
Sunstein C (2007) Worst-case scenarios. Harvard University Press, Cambridge
Sunstein C, Zeckhauser R (2009) Dreadful possibilities, neglected probabilities. In: Michel-Kerjan E, Slovic P (eds) The irrational economist: making decisions in a dangerous world. Public Affairs Press, New York, pp 116–123
Tversky A, Kahneman D (1973) Availability: a heuristic for judging frequency and probability. Cognit Psychol 5: 207–232
Tversky A, Kahneman D (1974) Judgment under uncertainty: heuristics and biases. Science 185: 1124–1131
Viscusi WK (2000) Corporate risk analysis: a reckless act. Stanf Law Rev 52: 547–597
Wildavsky A (1995) But is it true? A citizen’s guide to environmental health and safety issues. Harvard University Press, Cambridge
Zeckhauser R, Viscusi WK (1990) Risk within reason. Science 248: 559–564
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Sunstein, C.R., Zeckhauser, R. Overreaction to Fearsome Risks. Environ Resource Econ 48, 435–449 (2011). https://doi.org/10.1007/s10640-010-9449-3
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DOI: https://doi.org/10.1007/s10640-010-9449-3