IB is highly multidisciplinary and draws upon principles of economics, sociology, anthropology, psychology, political science, among others. Students of IB will benefit significantly from broadening their exposure to these principles. Nonetheless, the field of IB is motivated by its own set of questions, approaches and domains, which differ from those of these disciplines. Generally speaking, the field of IB is interested in understanding both how and why the conduct of business activity differs across national contexts and the effects of these differences for both multinational and domestic firms.