Emigration and immigration 32 Chinese 30 Japanese 14 Economic aspects 12 Race relations 12 Description and travel 11 Immigrants 10 Emigration and immigration law 9 Social life and customs 8 Foreign relations 7 Foreign workers, Chinese 7 History 7 Charities 5 Services for 5 Legal status, laws, etc 4 Social conditions 4 Culture conflict 3 Labor market 3 Orphans 3 Race discrimination 3 Social aspects 3 Taxation 3 Agriculture 2 Business enterprises 2 Chinese American business enterprises 2 Civilization 2 Defenses 2 Foreign workers, Japanese 2 Imaginary wars and battles 2 Labor supply 2