Open internationalization is a concept that brings a new perspective on the process of firm internationalization. As theories of internationalization show, some companies expand abroad only on their own, known as closed internationalization, while others combine their resources with those of other firms or use their networks for facilitating foreign implantation, known as open internationalization. Parallel to the development of the well-known concept of open innovation, open internationalization can be conceived as a meta-model for understanding companies’ expansion abroad. This book gathers a selection of contemporary research works dedicated to open internationalization, either seen as a way to analyse expansion in foreign countries, or as a way to investigate the management of geographically dispersed activities. All the authors of the chapters are researchers specialized in the internationalization field. Readers will benefit from this new lens for understanding, studying or practicing international business, from the decision to go abroad to its implementation and its efficiency. The book includes both academic empirical investigations as well as literature reviews on specific topics making it valuable to researchers, academics, managers, and students in the fields of business and management history, international business, organizational studies, and economics.