in terms of the historically variable ways that it has been practiced and socially understood through changing world-time. Manfred Steger, professor of global studies and research leader in the Global Cities Institute at RMIT University, identifies four main empirical dimensions of globalization: economic, political, cultural, and ecological. A fifth dimension—the ideological—cutting across the other four. The ideological dimension, according to Steger, is filled with a range of norms, claims, beliefs, and narratives about the phenomenon itself. James and Steger stated that the concept of globalization "emerged from the intersection of four interrelated sets of 'communities of practice' (Wenger, 1998): academics, journalists, publishers/editors, and librarians." They note the term was used "in education to describe the global life of the mind"; in international relations to describe the extension of the European Common Market, and in journalism to describe how the "American Negro and his problem are taking on a global significance". They have also argued that four forms of globalization can be distinguished that complement and cut across the solely empirical dimensions. According to James, the oldest dominant form of globalization is embodied globalization, the movement of people. A second form is agency-extended globalization, the circulation of agents of different institutions, organizations, and polities, including imperial agents. Object-extended globalization, a third form, is the movement of commodities and other objects of exchange. He calls the transmission of ideas, images, knowledge, and information across world-space disembodied globalization, maintaining that it is currently the dominant form of globalization. James holds that this series of distinctions allows for an understanding of how, today, the most embodied forms of globalization such as the movement of refugees and migrants are increasingly restricted, while the most disembodied forms such as the circulation of financial instruments and codes are the most deregulated. The journalist Thomas L. Friedman popularized the term "flat world", arguing that globalized trade, outsourcing, supply-chaining, and political forces had permanently changed the world, for better and worse. He asserted that the pace of globalization was quickening and that its impact on business organization and practice would continue to grow. Economist Takis Fotopoulos defined "economic globalization" as the opening and deregulation of commodity, capital, and labor markets that led toward present neoliberal globalization. He used "political globalization" to refer to the emergence of a transnational élite and a phasing out of the nation-state. Meanwhile, he used "cultural globalization" to reference the worldwide homogenization of culture. Other