http://tags.library.upenn.edu/tag/Danish_Institute_for_International_Studies+economic_development+transport PennTags Feed for /tag/Danish_Institute_for_International_Studies+economic_development+transport PennTags Feed http://tags.library.upenn.edu/makerecord/url/8171 http://tags.library.upenn.edu/makerecord/url/8171 Global commodity chains and economic upgrading in less developed countries.