Copyright law performs a number of important functions. It facilitates public access to knowledge and a wide range of uses of creative works of authorship, and, in so doing, it helps educate our populace, enrich our culture, and promote free speech, free expression, and democratic values. It provides opportunities for rights holders to recoup investments in creating and disseminating their works and to enjoy the fruits of whatever success arises from the public's uses of their works. In the process, copyright also plays a role in regulating new technologies and services through which creative works may be accessed. A well-functioning copyright law carefully balances the interests of the public in access to expressive works and the sound advancement of knowledge and technology, on the one hand, with the interests of copyright owners in being compensated for uses of their works and deterring infringers from making market-harmful appropriations of their works, on the other. Copyright law should enable the formation of well-functioning markets for creative and informative works that yield benefits for all stakeholders.
Litman, Jessica D. "The Copyright Principles Project: Directions for Reform." P. Samuelson et al, co-authors. Berkeley Tech. L. J. 25, no. 3 (2010): 1175-245.