8Hopkins, T K, Wallerstein, I, Commodity chains in the world economy prior to 1800 [J] . Review, 1986 (10) : 157 -170.
9Hassler M. Commodity Chains [ D ]. Philipps - University, Marburg, Germany, 2009 : 202 - 208.
10Porter, Michael E. Changing Patterns of International Competition [ M ] . In The Competitive Challenge: Strategies for Industrial Innovation and Renewal, edited by David J. Teece, Cambridge, MA: Ballinger, 1987:27-57.