This volume consists of 36 chapters that examine the role of conflict in the development of socioeconomic systems and the connection between conflict and economic crisis, focusing on the sustainable development of economic systems and their conflict-free character. Contributors working at universities and other institutions in Russia discuss conflict in terms of the contradiction of interests of economic subjects during their interaction, the reluctance of economic subjects to adapt to changes, and failure in the socioeconomic system. They describe the theory of complex socioeconomic systems, including causal connections between conflicts, the classification of conflicts, and their bifurcation points; the idea of legal conflict, including economic violation of the law as a conflict and a mediative method of solving legal conflicts; corporate conflicts and their features and legal framework; the growth and development of socioeconomic systems, including the theory of cycles, the effects of crises and their influence on growth and development, and the social and economic effects of crises of economic systems; the similarities and differences between crises and conflicts in socioeconomic systems, the social effects of crises as a manifestation of conflicts in them, and a model of conflict; the role of crises in the development of socioeconomic systems as a result of the 2008 global financial crisis; the classification of socioeconomic systems into phases of crisis, sustainability, and stagnation; the conflict-free nature of socioeconomic systems and the role of regional identity, territorial clusters, signs of conflict-free systems, and criteria for measuring conflict levels; and managing conflict-free systems, including corporate governance.