The research concept of the Faculty of Business Studies and Economics can best be summarized under the heading Complexity and Governance. Complexity and Governance is concerned with the decision behavior of economic actors within an increasingly complex decision-making environment, caused by global economic and social developments. On the one hand, the number of network-like relationships between the different actors rises disproportionally to the number of actors and layers of activity. On the other hand, the complexity of decision processes is increased by diverging interests, information asymmetries, and incomplete rules. Governance refers to a set of formal and informal behavioral rules and norms which coordinate and make it capable of acting, also including acting blockades (“lock-in”).The manifold research activities of the Faculty of Business Studies and Economics in the field of Complexity and Governance are subdivided according to their contents into five research clusters. The cluster Innovation and Networks combines the research activities of chairs, institutes, and scientific units concerned with the innovation in terms of both technological and an organizational perspective. Public Decision Making deals with the complexity of decision processes that take place in the public area or are shaped by public actors. The cluster Transnational Enterprises is devoted to the distinctive features of transnational operating enterprises with special regard to their management and their relationships to the state and society. Logistics represents an indispensable research field in a city state like Bremen which is closely connected by its seaports and airport to the rest of the world. Finally, the cluster Complex Methods applies modern numerical and empirical methods in order to analyze complex processes of decision making, particularly in the field of risk and uncertainty.