Various copyright alternatives in an alternative compensation systems (ACS) have been proposed as ways to allow the widespread reproduction of digital copyrighted works while still paying the authors and copyright owners of those works. This article only discusses those proposals which involve some form of government intervention. Other models, such as the street performer protocol or voluntary collective licenses, could arguably be called "alternative compensation systems" although they are very different and generally less effective at solving the free rider problem.
The impetus for these proposals has come from the widespread use of peer-to-peer file sharing networks. A few authors argue that an ACS is simply the only practical response to the situation.[1] But most ACS advocates go further, holding that P2P file sharing is in fact greatly beneficial, and that tax or levy funded systems are actually more desirable tools for paying artists than sales coupled with digital rights management copy prevention technologies.