Co-production: the state of the art in research and the future agenda

In this introductory article to the thematic issue, our aim is to discuss the state of the art in research on co-production of public services. We define co-production, for the purpose of this article rather narrowly, as the involvement of individual citizens and groups in public service delivery. We discuss the concept along three main research lines that emerge from the literature: what are the motives for co-production? How can co-production be organized effectively? What are the effects of co-production? Secondly, we also critically assess the state of the art and discuss some conceptual and methodological issues that are still open to debate. Thirdly, we propose some directions for future research: greater methodological diversity and the need for empirical and comparative research with a specific attention for theoretical advancement in co-production research