摘要:Abstract : Open Access (OA) as a new form of distributing scientific literature is broadly accepted by scholars, but in most disciplines the realization of the paradigm is progressing rather slowly. The reason for this lies, on the one hand, in a lack of incentives for individual authors. On the other hand, there are many different approaches to {OA} and their effects on market participants are complex. In this article we regard the implications of different {OA} models for scholars, publishers, libraries and funding organizations and try to explain the motivations behind the actions currently taking place on the scientific publishing market.