Political economy 5 Media studies 4 Environmental policy & protocols 3 International relations 3 Political activism 3 Central government policies 2 Environmental economics 2 History of the Americas 2 Marxism & Communism 2 Migration, immigration & emigration 2 Political parties 2 Social & cultural anthropology, ethnography 2 African history 1 Anthropology 1 Asian history 1 Behavioural economics 1 Colonialism & imperialism 1 Conservation of the environment 1 Development economics & emerging economies 1 Economic history 1 Economic theory & philosophy 1 Economics 1 Employment & labour law 1 Ethnic minorities & multicultural studies 1 European history 1 Feminism & feminist theory 1 Gender studies, gender groups 1 General & world history 1 Globalization 1 History 1