- Emigration and immigration--Social aspects
- Emigration and immigration--Statistics
- Emigration and immigration--Economic aspects
- Immigration enforcement
- Immigration Law
- Immigration and social issues
- Immigration and politics
- population forecasting
- population dynamics
- population policy
- demographic transition
- population statistics
- EMIGRATION & immigration -- Government policy
- ASSIMILATION of immigrants
- MULTICULTURALISM
*Combining these terms with the specific country being investigated
