This course gives an in- depth view into the economic framework and the rationale of economic, especially strategic decisions. In order to enable students to analyze the economic environment and draw conclusions from a managerial perspective, the first part of the course is devoted to the description and analysis of the market forces. Based on that, strategic decision making is the common aspect of the second part of the course. Especially the role of different market structures and asymmetric information are mentioned here as well as the fundaments of game theory, which makes students familiar with the background of decision making processes in modern economics.