@incollection{, 2FB6389C1E0BF849ED7C8C9691EB21BA , author={{ZhaoShijie} and {Guangdong University of Managemnet}}, journal={{Global Journal of Management and Business Research}}, journal={{GJMBR}}2249-45880975-585310.34257/GJMBR, address={Cambridge, United States}, publisher={Global Journals Organisation}14115 } @book{b0, , title={{Trade in services: IT and task content}} , author={{ A& GAriu } and { Milon }} } @incollection{b1, , title={{}} , journal={{American Economic Review}} 7 , year={2010} } @book{b2, , title={{Ezeala Harrison & Fidelis, Theory and Policy of International Compaetitiveness}} , year={1999} , publisher={Praeger Publishers} , address={London} } @incollection{b3, , title={{Services trade and policy}} , author={{ FrancoisJ & BHoekman }} , journal={{Journal of Economic Literature}} 48 , year={2010} } @incollection{b4, , title={{Trade in services}} , author={{ AadityaMattoo }} , journal={{The Princeton Encyclopedia of the World Economy}} 5 , year={2009} } @book{b5, , title={{Comparative and Absolute Advantage}} , author={{ WRonald } and { Jones } and { Rochester }} } @incollection{b6, , title={{}} , journal={{Swiss Journal of Economics and Statistics}} 116 3 , year={1980} } @incollection{b7, , title={{The Comparative Advantage Theory of Competition}} , author={{ DShelby } and { MHunt & Rober } and { Morgan }} , journal={{Journal of Marketing}} 59 , year={1995} }