Purpose The purpose of this paper is to review the emerging research field of open innovation and identify where the field is going as well as suggest future fields of research. Design/methodology/approach All academic papers and books published until November 2007 under the label of open innovation were systematically reviewed. Also, nine key researchers were asked to contribute with their opinions on the research frontier. Findings A number of key themes in the research were identified, and conclusions on the underlying structure were drawn. This reveals that there is a tendency towards a broader definition and application of the term, a growing critical perspective, and a concentration on theory development and managerial implications. Research limitations/implications The paper suggests that thelocusof the innovation process and the extent of collaboration should be used as two dimensions in a model to further understanding of how open innovation develops. These dimensions have an important impact on both the human and the organizational side of innovation, areas that are highlighted as important fields for further research. Originality/value Despite the interest in the open innovation topic, a comprehensive review of the academic publications in the area does not seem to exist. The review and the conclusions drawn support the understanding of the growing field.
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