Political Economy is an interdisciplinary field borrowing from not only Political Science and Economics, but also Anthropology, Sociology, Public Policy, and other social sciences. Political Economy is most commonly defined as the study of the interaction between politics and economics within the national, international, and global spheres. It can also refer to an analysis of political systems using an economic perspective and theories. Links listed in this section are websites that provide information, data, essays, research, or studies that relates to any definition of political economy. In addition, links of relevant institutes, foundations, or centers are also included.