Yes, Bill's points about surveys are technically correct but Kleck was aware of these issues and tried to design a survey to handle them as best as is possible. See Kleck's papers for details.

Alex

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Alexander Tabarrok Department of Economics, MSN 1D3 George Mason University Fairfax, VA, 22030 Tel. 703-993-2314

Web Page: http://mason.gmu.edu/~atabarro/
and
Director of Research The Independent Institute 100 Swan Way Oakland, CA, 94621 Tel. 510-632-1366



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