This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
World trade map. economic map world map of countries by trading status late th century using the world system differentiation into core countries semiperiphery countries and periphery countries Based on list in Christopher ChaseDunn Yukio Kawano and Benjamin Brewer Trade Globalization since American Sociological February Vol jstor