Li Qiang Liu Hao Zeng Yong（School of Management and Economics，University of Electronic Science and Technology of China， Chengdu， 611731;School of Finance，Guangdong University of Foreign Studies， Guangzhou， 510006;Institute of Financial Openness and Asset Management， Guangzhou， 510006）.Size effect and growth options over firm lifecycle[J].Journal of Management Science and Engineering,2022,第2期