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  2020, Vol. 1 Issue (4): 121-129    DOI:
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Heterogeneous Firms and Basic Research Investment
Sun Jia1,2, Lv Jiaqi3, Yu Changhong2,3
1.School of International Education,Dalian University of Technology,Dalian 116023,China;
2.China Business Executives Academy,Dalian 116086,China;
3.School of Economics and Management,Dalian University of Technology,Dalian 116023,China
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