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Revista Direito GV

On-line version ISSN 2317-6172


POSNER, Eric A.. Symbols, signals, and social norms in politcs. Rev. direito GV [online]. 2008, vol.4, n.1, pp.231-268. ISSN 2317-6172.

This article uses a signaling model to explain the role of symbols in people's behavior and beliefs, with special attention to legal manipulation of symbols. It is argued that certain actions become symbolic because they have the proper cost structure and because they are, for historical or psychological reasons, focal. The government can in theory use standard legal instruments (which mainly affect the cost of the signal) to change equilibrium behavior and belief. The use of the law in this way is likely to have unpredictable effects because of multiple equilibria and of the sensitivity of behavior to parameters, but it occurs frequently because lobbying and other actions that influence lawmaking can become signals themselves, and the law is simply an equilibrium outcome. The analysis is used to discuss flag desecration, censorship, voting, and antidiscrimination laws.

Keywords : Sovereignty; international treaties; tax law; double symbols; signals and social norms in politcs and law.

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