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机译:经济政策如何不确定性如何影响企业多样化?
Natl Econ Univ Hanoi New Zealand|Lincoln Univ Lincoln New Zealand;
Lincoln Univ Lincoln New Zealand;
Kunming Univ Sci & Technol Kunming Yunnan Peoples R China;
Economic policy uncertainty; Diversification; Information asymmetry; Agency problem; Risk; China;