6Robert Enables. Greece's sovereign-debt crunch-A very European crisis[J].The Economist print edition,2010,(04).
7Kelch David,Shane Mathew,TorgersonDavid,Agapi Somwaru. European Financial Imbalances:Implications of the Eurozone Sovereign Debt Problem for U.S. Agricultural Export WRS-1102[R].ERS/USDA,2011.
8Karine Hervé,Nigel Pain,Pete Richardson,Franck Sédil ot and Pierre-Olivier Beffy. “The OECD’s New Global Model”Working Paper No.768[M].OECD Economics Department,2010.