History 2,312 Economic conditions 1,851 Economic policy 1,624 Social conditions 1,059 Economic aspects 583 Communism 501 Politics and government 489 more ... Working class 458 Industrial management 436 Agriculture 429 Marxian economics 424 Industries 404 Population 378 Statistics 338 Peasants 330 Commerce 328 Foreign economic relations 310 Russian Primary Sources 307 Socialism 290 Rural conditions 285 Land tenure 266 Economics 263 Economic history 262 Finance 248 Mathematical models 237 Censuses and Official Statistical Publications 223 Economic integration 192 Labor supply 192 Agriculture and state 188 Social policy 184 less ...