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Journal of Political Economy Vol. 114 No. 1 2006

The Market for Illegal Goods: The Case of Drugs

Gary S. Becker1,2; Kevin Murphy1,3,2; Michael Grossman4,3,5

1 Hoover Institution · 2 University of Chicago · 3 National Bureau of Economic Research · 4 The Graduate Center, CUNY · 5 City University of New York

open access

Abstract

This paper considers the costs of reducing consumption of a good by making its production illegal and punishing apprehended illegal producers. We use illegal drugs as a prominent example. We show that the more inelastic either demand for or supply of a good is, the greater the increase in social cost from further reducing its production by greater enforcement efforts. So optimal public expenditures on apprehension and conviction of illegal suppliers depend not only on the difference between the social and private values from consumption but also on these elasticities. When demand and supply are not too elastic, it does not pay to enforce any prohibition unless the social value is negative. We also show that a monetary tax could cause a greater reduction in output and increase in price than optimal enforcement against the same good would if it were illegal, even though some producers may go underground to avoid a monetary tax. When enforcement is costly, excise taxes and quantity restrictions are not equivalent.

DOI
10.1086/498918
Volume
114
Issue
1
Pages
38-60
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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