Economic conditions -- Politics and government -- 88 Social conditions -- 39 History -- 17 Foreign relations -- 10 Periodicals 8 Economic forecasting -- 7 more ... Periodicals -- 7 Forecasting -- 5 History 5 Social conditions 5 Congresses -- 4 Economic conditions 4 Economic policy 4 Foreign relations 4 Congresses 3 Maps 3 Politics and government 3 Socialism -- 3 Civilization 2 Democracy -- 2 Economic policy -- 2 Forecasting 2 Intellectual life -- 2 National security -- 2 Regional disparities -- 2 20th century 1 Addresses, essays, lectures -- 1 Agriculture 1 Agriculture -- 1 less ...