光伏企业研发投入强度与企业绩效的实证分析——基于财务杠杆和股权性质的调节作用
肖煜, 龚桂英
RESEARCH & DEVELOPMENT INVESTMENT INTENSITY AND PERFORMANCE OF PHOTOVOLTAIC COMPANIES ADJUSTED BY FINANCIAL LEVERAGE AND EQUITY NATURE
XIAO Yu, GONG Guiying
资源与产业
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2022, (4): 21
-29
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DOI: 10.13776/j.cnki.resourcesindustries.20220307.001
