This paper argues that making goods or services illegal results in an
increase in the social costs associated with rent-seeking. The increas
ed social cost is in the form of negative externalities that result fr
om market participants use of coercion and violence in attempts to con
trol trade in the illegal good. Consequently, the social costs of rent
-seeking will exceed the value of resources dissipated in rent-seeking
competition. And, where the external costs exceed the undissipated po
rtion of the Tullock cost, the social cost of rent-seeking is greater
than the sum of Tullock and Harberger costs.