Customs Unions versus Free Trade Agreements

‘South African Customs Union – example of a non-European customs union’
www.dfa.gov.za

WTO Rules

The WTO page has many examples and useful documents
www.wto.org

WTO rules governing customs unions and free trade agreements
www.wto.org/english/thewto_e

Empirical studies

World Bank book on regionalism (empirics, theory and politics)
www.worldbank.org/research/trade/trade_blocs