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In light of these revisions modern statutory damages are even more clearly "designed to discourage wrongful conduct" and may be imposed to “sanction and vindicate” the statutory policy against copyright infringement… Modern appellate decisions continue to emphasize this deterrence purpose, particularly where the defendant’s infringement was willful.
Also:
Statutory damages under the Copyright Act…are not solely intended to approximate actual damages. They serve purposes that include deterrence. Statutory damages under the Copyright Act are therefore distinct from the type of damages that are typically calculated according to rules of mitigation.
Free State Foundation President Randolph May and I discuss history of civil copyright enforcement in our 2018 Perspectives from FSF Scholars paper, "Modernizing Civil Copyright Enforcement for the Digital Age Economy." Also, on January 10 we published our Perspectives paper, "The Constitutional Foundations of Strict Liability for Copyright Infringement."