This course provides an in-depth exploration of the economic theory of the firm, interorganizational governance structures, and open innovation strategies, combining theoretical rigor with real-world applications. It covers key theories of the firms (e.g., Transaction Cost Economics and Resource-based view), offering a foundation for understanding how firms organize and govern their relationships. The course also examines interfirm collaborations, including strategic alliances and joint ventures, analyzing their strategic implications and governance mechanisms. A significant focus is placed on the Open Innovation paradigm, with particular attention to the role of crowdsourcing. Additionally, the course explores how firms leverage networking strategies and social capital to enhance their innovation capabilities and competitive advantage.