The paper industry is a traditional industry with extensive consumption of resources and energy and more pollutant discharge. This industry is closely related to production and life activities. Under the general requirement of “to step up conservation of the Yangtze River and stop its over development,” the paper industry in the Yangtze River Economic Belt should urgently undergo green transformation and development. Based on the undesirable slack-based measure model, spatial gravity center, Kernel density function, Theil index, and panel model, this study examines the green development efficiency and its influencing factors of the paper industry in the Yangtze River Economic Belt from 2001 to 2016. Results showed the following: (1) from 2001 to 2016, the green development efficiency of the paper industry in the Yangtze River Economic Belt had been steadily improved, but the overall efficiency value is not high, which has a great potential for improvement. The green development efficiency of the paper industry in the Yangtze River Economic Belt presents the regional differentiation law of gradient increasing in the upper, middle, and lower reaches. (2) According to the gravity center trajectory, the efficiency center of the green development of the paper industry in the Yangtze River Economic Belt is located in the middle reaches of Hunan Province and Hubei Province and moves to the southwest. This case indicates that the green development efficiency of the paper industry in provinces and cities in the southwest has been improved. (3) The regional differences in the green development efficiency of the paper industry in the Yangtze River Economic Belt show the characteristics of narrowing fluctuations. The regional differences are the primary sources of the difference in the green development efficiency of the paper industry. (4) The enterprise scale, science and technology investment, and industrial structure have significant positive effects on the green development efficiency of the paper industry in the Yangtze River Economic Belt. On the contrary, environmental regulation and foreign investment intensity have significant negative effects. However, the above factors have different effects on the green development efficiency of the paper industry in the upper, middle, and lower reaches of the Yangtze River Economic Belt.

中文翻译：

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长江经济带造纸业绿色发展效率测度及影响因素

造纸工业是传统工业，资源和能源消耗大，污染物排放量大。这个行业与生产和生活活动密切相关。在“加强保护长江，阻止其过度发展”的总体要求下，长江经济带的造纸业应紧迫地进行绿色转型与发展。基于不期望的基于松弛的测度模型，空间重心，核密度函数，Theil指数和面板模型，本研究考察了长江经济带2001年至2016年造纸业的绿色发展效率及其影响因素。 。结果显示：（1）从2001年到2016年，长江经济带造纸业的绿色发展效率一直在稳步提高，但总体效率值不高，有很大的提升潜力。长江经济带造纸业的绿色发展效率呈现出上，中，下游梯度增长的区域差异规律。（2）按照重心轨迹，长江经济带造纸业绿色发展的效率中心位于湖南省和湖北省中游，向西南方向发展。该案例表明，西南省市造纸业的绿色发展效率得到了提高。（3）长江经济带造纸业绿色发展效率的区域差异表现出变窄的特征。区域差异是造纸行业绿色发展效率差异的主要来源。（4）企业规模，科技投入和产业结构对长江经济带造纸行业的绿色发展效率具有显着的积极影响。相反，环境监管和外国投资强度具有明显的负面影响。但是，以上因素对长江经济带上，中，下游造纸工业的绿色发展效率有不同的影响。