From Competition to Competence? Theory and Experiments Regarding Deliberation, Expertise, and Decision Making
University of California, Davis
Mathew D. McCubbins
University of Southern California - Marshall School of Business, Gould School of Law and the Department of Political Science
June 28, 2007
2nd Annual Conference on Empirical Legal Studies Paper
Many scholars propose deliberation as a remedy for our uninformed citizenry. Specifically, scholars emphasize that exposing citizens to the views of competing experts and then letting them discuss those views will help citizens to learn about politics and make informed decisions. In this paper, we analyze experimentally the conditions under which competition between experts induces the experts to make truthful statements and enables citizens to improve their decisions. Our results demonstrate that, contrary to our theoretical predictions, competition induces enough truth-telling to allow subjects to achieve modest improvements in their decisions. Then, when we impose even weak institutions (such as small penalties for lying or slim chances of verification) upon the competing experts, we observe dramatic improvements in both the experts' propensity to tell the truth and in subjects' decisions. We find similar improvements when the competing experts are permitted to exchange reasons for why their statements may be correct. Thus, both institutions and the exchange of reasons help competition between experts to function more effectively.
Number of Pages in PDF File: 55
Keywords: deliberation, learning, competition, experts, experiment, competence
JEL Classification: C91, D80, K10, D72working papers series
Date posted: June 29, 2007 ; Last revised: February 15, 2008
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