本文以2008-2013年我国 A 股市场27家物联网上市公司为研究对象,运用 DEA -Malmquist指数方法测算物联网上市公司全要素生产率的变化及效率变动源,实证分析政府财税补助对这些上市公司的效应。研究发现,政府财税补助对物联网上市公司全要素效率的改进存在负效应,但不显著,认为问题不在于政府的补贴支持,而是在于政府补贴制度的设计及管理。
Taking the 27 listed companies of China′s A share market from 2008 to 2013 for samples, this paper studies the change sources of total factor productivity and efficiency by using of DEA-Malmquist index methods, and empirically analyzes the effects of fiscal subsidies on listed companies, finding that it has negative effects on the improvements of In-ternet of Things listed companies′total factor efficiency, but it is not significant, and thinking that the reason isn′t the subsidies support of goverment, but is the design and management of subsidies system.