Laws of Fear: Beyond the Precautionary Principle
Cass R. Sunstein
Harvard Law School
Cass Sunstein, LAWS OF FEAR, BEYOND THE PRECAUTIONARY PRINCIPLE, Cambridge University Press, March 2005
What is the relationship among fear, danger, and the law? There are serious problems with the increasingly influential Precautionary Principle - the idea that regulators should take steps to protect against potential harms, even if causal chains are uncertain and even if we do not know that harms are likely to come to fruition. An investigation of such problems as global warming, terrorism, DDT, and genetic engineering shows that the Precautionary Principle is incoherent. Risks exist on all sides of social situations, and precautionary steps create dangers of their own. The idea of precaution seems operational only because diverse cultures focus on very different risks, with social influences and peer pressures accentuating some fears and reduce others. Cascades, the availability heuristic, loss aversion, and group polarization are highly relevant here. Instead of adopting the Precautionary Principle, regulators should take three steps: they should adopt a narrow Anti-Catastrophe Principle, designed for the most serious risks; pay close attention to costs and benefits; and accept an approach called "libertarian paternalism," designed to respect freedom of choice while also moving people in directions that will make their lives go better. An understanding of the dynamics of fear also shows how free societies can protect liberty amidst fears about terrorism and national security.
Keywords: precautionary principleAccepted Paper Series
Date posted: May 11, 2005
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