screening technologies) which are also seen as intermediaries. The enforcement effort is there fore endogenously determined. It … (artists) but by intermediaries. Their profits, and therefore also the income of the artists, are endangered by copyright … infringements (piracy). It is well known from static welfare analysis that to some extent piracy reduces the deadweight loss by …

exchange framework. The framework allows DRM systems to exchange electronic contracts, formulated in a standardized rights … expression language, and thus provides DRM system interoperability. The work introduces a methodology for the standardized …