Open innovation, characterized as an innovation process spanning firm boundaries, has evolved to a central topic in management literature over the past decade. Various projects have shown that firms profit from disclosing some of their intellectual property (IP). In participating in open innovation, firms may, among other things, increase the efficiency and effectiveness of their R&D efforts by enticing other actors to join in co-creation of value or increasing their chances at standard setting.

However, firm and market characteristics that affect innovation are supposed to change over time (e.g., firm size, customer needs, market growth and competition). Hence, one could argue that a firm’s motives to engage in open innovation change as well. With our current research effort, we try to extend the general concept of open innovation by including the dynamics of opening and closing over time.

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