- "voting with one's feet" (migration)
- Metro Manila (National Capital Region)
- Mega Manila (NCR + selected provinces in Regions III & IV)
- primate city (political, economic and financial center in the country;
characterized also with huge population) - Global City* (e.g. London, New York, Paris, Japan, etc.)
- Nauru (smallest independent island republic)
- urban studies (covers urban economics, urban politics,
urban ecology, urban society, etc.) - rural-push migration (triggered by poverty, landlessness, militarization)
- urban-pull migration (driven by the desire to achieve economic prosperity)
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* for its general characteristics, see http://en.wikipedia.org/wiki/World_city
