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Guizhou Univ Finance & Econ, Guiyang 550025, Guizhou, Peoples R China
Liaoning Univ, Ctr Law & Finance, Guiyang 550025, Guizhou, Peoples R China
GuiZhou Univ Finance & Econ, Inst Finance, Guiyang 550025, Guizhou, Peoples R China Guizhou Univ Finance & Econ, Guiyang 550025, Guizhou, Peoples R China