Copyright Term Extension: Estimating the Economic Values

This report considers proposals to extend the duration of copyrights by 20 years (as in H.R. 2589 and other bills) and related proposals to charge a fee to the owners in order to receive the extension. The method of analysis is economic rather than legal. The report reviews the basic economic principals involved in copyright law and gives rough estimates of the value of copyrights on books, music, and movies produced in the 1920s and 1930s — those that would be most immediately affected by an extension of copyright terms.