Abstract:The Rise of Regional Powers and Shifting Global Relations:Comparing China, India, Brazil and South AfricaA number of regional powers are becoming important international actors and are changing the coordinates of world politics and the global economy. The political and economic shift in favor of these regional powers has been accompanied by the relative loss of importance of the US, Japan, and the EU. The latter countries are increasingly challenged by the economic growth and the geostrategical actions of the regional powers. As the conception of and debates on regional powers have been led by political science, this paper aims to contribute to the discussion from an economics perspective. Based on the discussion of different concepts of economic power—such as those of Schumpeter, Perroux, Predöhl, or Kindleberger—concepts of technological leadership, and the global value chain approaches, the paper develops a research framework for the economics of regional powers. This framework is then tested using descriptive statistics as well as regressions analysis, with a focus on the four regional powers Brazil, China, India, and South Africa. As economic power is relational, the relationship of regional powers to other nations in the region is analyzed. According to the findings, only limited conclusions on the economics of regional powers are possible: a regional power can be described as an economy with a relatively large population and land area which plays a dominant role in trade within the region and in the regional governance. The regional power develops its technological capacities, and its businesses act regionally and globally with increasing strength.