"‘Domestic sourcing' is when the sourcing firm and its suppliers are located in the same country (e.g., Honda in the U.S. sources from Nippondenso in the U.S.), while ‘foreign sourcing' involves sourcing from abroad (e.g., Honda in the U.S. procures from Nippondenso in Japan)".
(Murray, J. Y., A currency exchange rate-driven vs. strategy-driven analysis of global sourcing, Multinational Business Review, Spring 1996, visited 2011-02-22)