The book focuses on developing a game approach to business marketing and purchasing in the context of integration in the digital economy. The book is unique in that it systemically covers the totality of advanced business integration strategies, including mutual trade, foreign direct investments, clustering, strategic alliances, special economic zones, technology parks and innovative networks, collaboration of universities and business structures, and public–private partnership. The novelty of this book and its contribution to the literature also lies in the fact that it offers a pioneering methodology for the management of market strategies for business integration based on the progressive economic and mathematical apparatus of game theory. The first part of this book demonstrates the benefits of business integration for business marketing and purchasing. The second part rethinks business integration strategies from the game theory perspective.