政策冲击下的新能源企业投资效率研究 ——基于财政补贴与税收优惠比较的视角
王艳丽,杨帆
Research on investment efficiency of new energy enterprises under the impact of policies —— A comparative perspective based on fiscal subsidies and tax preference
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煤炭经济研究 . 2019, (10): 30 -40 .