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Horizontal Political Externalities: The Supply and Demand of Disaster Management


Ben Depoorter


University of California Hastings College of Law; Ghent University - Center for Advanced Studies in Law & Economics


Duke Law Journal, Vol. 56, p. 101, 2006
University of Miami Legal Studies Research Paper No. 2007-03

Abstract:     
This Article discusses the dynamics of shared political accountability and provides a supply- and demand-side analysis of disaster management. Because multiple levels of government share political accountability in national scale disasters, disaster management is subject to a collective action problem. Introducing the concept of horizontal political externalities, this Article explains the shortcomings of disaster management in terms of asymmetric political accountability costs for ex ante preparedness and ex post relief. In the presence of shared accountability, investments in prevention and relief by one government actor confer positive externalities upon other government actors by reducing the overall chance of being held responsible in ensuing disasters. In contrast, ex post disaster relief involves negative externalities when action by one agency makes other agencies or representatives look worse. Because positive externalities are undersupplied and negative externalities are oversupplied, political externalities distort disaster management policy. When political accountability is shared, no single actor bears the full brunt of accountability. In addition, uncertainty and finger pointing reduce the total sum of political accountability. The different effects of ex ante and ex post disaster management on political accountability may shed light on events before and after Hurricane Katrina. I provide suggestions for further avenues of empirical and theoretical research on this new positive political theory of horizontal political externalities and political accountability losses.

Number of Pages in PDF File: 26

Keywords: political externalities, disaster management, Katrina

JEL Classification: L51, H11, H77, K00, K29

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Date posted: October 20, 2006  

Suggested Citation

Depoorter, Ben, Horizontal Political Externalities: The Supply and Demand of Disaster Management. Duke Law Journal, Vol. 56, p. 101, 2006; University of Miami Legal Studies Research Paper No. 2007-03 . Available at SSRN: http://ssrn.com/abstract=938888

Contact Information

Ben Depoorter (Contact Author)
University of California Hastings College of Law ( email )
200 McAllister Street
San Francisco, CA 94102
United States

Ghent University - Center for Advanced Studies in Law & Economics ( email )
Ghent Univ. Law School
Universiteitstraat 4
Gent, 9000
Belgium
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