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http://ssrn.com/abstract=1084585
 
 

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Conspiracy Theories


Cass R. Sunstein


Harvard Law School

Adrian Vermeule


Harvard Law School

January 15, 2008

Harvard Public Law Working Paper No. 08-03
U of Chicago, Public Law Working Paper No. 199
U of Chicago Law & Economics, Olin Working Paper No. 387

Abstract:     
Many millions of people hold conspiracy theories; they believe that powerful people have worked together in order to withhold the truth about some important practice or some terrible event. A recent example is the belief, widespread in some parts of the world, that the attacks of 9/11 were carried out not by Al Qaeda, but by Israel or the United States. Those who subscribe to conspiracy theories may create serious risks, including risks of violence, and the existence of such theories raises significant challenges for policy and law. The first challenge is to understand the mechanisms by which conspiracy theories prosper; the second challenge is to understand how such theories might be undermined. Such theories typically spread as a result of identifiable cognitive blunders, operating in conjunction with informational and reputational influences. A distinctive feature of conspiracy theories is their self-sealing quality. Conspiracy theorists are not likely to be persuaded by an attempt to dispel their theories; they may even characterize that very attempt as further proof of the conspiracy. Because those who hold conspiracy theories typically suffer from a crippled epistemology, in accordance with which it is rational to hold such theories, the best response consists in cognitive infiltration of extremist groups. Various policy dilemmas, such as the question whether it is better for government to rebut conspiracy theories or to ignore them, are explored in this light.

Number of Pages in PDF File: 30

Keywords: conspiracy theories, social networks, informational cascades, group polarization

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Date posted: January 17, 2008 ; Last revised: January 18, 2010

Suggested Citation

Sunstein, Cass R. and Vermeule, Adrian, Conspiracy Theories (January 15, 2008). Harvard Public Law Working Paper No. 08-03; U of Chicago, Public Law Working Paper No. 199; U of Chicago Law & Economics, Olin Working Paper No. 387. Available at SSRN: http://ssrn.com/abstract=1084585 or http://dx.doi.org/10.2139/ssrn.1084585

Contact Information

Cass R. Sunstein
Harvard Law School ( email )
1575 Massachusetts Ave
Areeda Hall 225
Cambridge, MA 02138
United States
617-496-2291 (Phone)
Adrian Vermeule (Contact Author)
Harvard Law School ( email )
1525 Massachusetts
Griswold 500
Cambridge, MA 02138
United States
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