Binary distribution

Binary distribution is the presence of two or more very large and dominant cities in a country.

Countries with binary distribution

 * Australia (Melbourne, Sydney)
 * Brazil (São Paulo, Rio de Janeiro)
 * Canada (Toronto, Montréal)
 * China (Shanghai, Beijing)
 * India (Mumbai, Delhi)
 * Italy (Rome, Milan)
 * Japan (Tokyo, Osaka-Kobe-Kyoto)
 * Netherlands (Amsterdam, Rotterdam)
 * Russia (Moscow, Saint Petersburg)
 * Spain (Madrid, Barcelona)
 * Turkey (Ankara, Istanbul)
 * USA (New York City, Los Angeles)
 * Vietnam (Ho Chi Minh City, Hanoi)