English: A world map of countries by trading status, late 20th century, using the world system differentiation into core countries, semi-periphery countries and periphery countries. Based on a list in Christopher Chase-Dunn, Yukio Kawano and Benjamin Brewer, Trade Globalization since 1795, American Sociological Review, 2000 February, Vol. 65 article, Appendix with the country list
*Some countries with a population of less than one million were excluded from the analysis.