Collaboration plays an important role in the early development of com- nies. Among others, they provide opportunities to combine complementary resources, develop additional competencies, and generate valuable signals for investors. They are particularly important for biotechnology firms, whose resource base often is not sufficient to realize the market potential of their R&D findings. Strategic alliances thus are an integral part of the business model of most biotechnology companies, but their economic re- vance is not yet fully understood, since research has thus far neglected most...