Social entrepreneurs as change makers: expanding public service networks for social innovation.

Social innovation, in the context of public innovation, has gained increased attention in the literature, and is approached relative to the third sector, to social enterprises, or as practices initiated by the public sector. However, the interplay among these actors in enabling social innovation is still underexplored. Therefore, the article investigates the role of social entrepreneurs from outside the public sector in enabling public sector innovation networks. Since social innovation is inherently relational, four cases demonstrating how social entrepreneurs have pushed the boundaries of public sector services, and hence expanded public innovation networks, are analysed. [ABSTRACT FROM AUTHOR]