Carbon efficiency of US colleges and universities: a nonparametric assessment

Under the American College and University Presidents’ Climate Commitment (ACUPCC), institutes of higher education have pledged to pursue a goal of carbon neutrality. We utilize emissions reported under the ACUPCC agreement and a nonparametric data envelopment analysis approach in order to evaluate the relative performance of signatories to the agreement in terms of producing teaching and research with the least greenhouse gas emissions. We find that while many signatory institutions are now producing their desirable outputs relatively efficiently in terms of carbon emissions, there still exists considerable variation in efficiency and potential for improvement. Results of a second stage efficiency change analysis shows evidence of both movement towards the efficiency frontier since signing, and some movement of the frontier itself, though this evidence comes primarily from teaching-focused institutions.     

区域“大众创业，万众创新”效率评价

以中国内地31个省（市）数据为基础,以“大众创业,万众创新”（简称“双创”）的本质及特征为依据,构建了一套区域“双创”效率评价指标体系。运用三阶段DEA方法,在控制环境因素的基础上考察了各地区“双创”投入产出转化效率。研究显示,目前各区域“双创”效率发展不均衡,规模效率和纯技术效率除个别地区达到1以外,其它地区都存在不同程度的效率缺损。最后,根据规模效率和纯技术效率大小,对31个省市的“双创”效率进行四分图归纳,根据归纳结果提出了相应的解决措施,可为“双创”可持续发展提供参考依据。     

And if the ball does not cross the line? A comprehensive analysis of football clubs’ performance

The football club market is changing fast in the social media era. In this global market, clubs must maintain or improve fans’ attendance at the stadium; simultaneously, they need, more than ever, to take care of social media. The aim of this article is to test and discuss a comprehensive approach to analysing the performance of football clubs regarding their multiplicity of objectives. We analyse the efficiency of English Premier League (EPL) clubs during three seasons (2012/13–2014/15). The methodologies employed are data envelopment analysis (DEA) and a bootstrapped DEA model. The input is the market value of the squad, and the outputs are sports results, total revenue, the ratio of stadium utilization during the season and an index of social media impact. The results are robust to alternative estimation methods and indicate that EPL clubs still have a margin for improving their overall efficiency, mainly the medium clubs. The analysis of football clubs’ performance with the proposed comprehensive approach provides a useful tool to help managers with evaluation and feedback considering the actual context of the market. The approach brings closer the opportunity to design appropriate strategies to improve clubs’ efficiency as well as competition policies.     

军民融合背景下我国上市军工企业结构评价研究

采用“DEA方法”评价我国上市军工企业结构优化度,通过我国各军工产业结构优化效率之间的对比,探究我国军工产业结构现有的问题,进而提出新时期、新常态下,我国军工产业结构升级的对策。最后,就军民融合背景下我国军工企业转型升级问题提出实践性指导。     

四螺旋参与度对技术转移及其效率的影响研究

从科研院所-政府-企业-中介平台四螺旋体系的角度研究了技术转移的效率问题。定义四螺旋在技术转移活动中的资源投入为四螺旋参与度,采用CCA/DEA方法研究了四螺旋参与度与技术转移产出效益的关系。研究表明,四螺旋参与度与技术转移产出效益显著正相关;整体水平上,四螺旋技术转移体系效率未达到最优规模效益,政府与企业的R&D经费投入存在浪费现象;科研院所的发明专利申请和科技论文产出对技术转移的促进作用最大;我国区域技术转移效率有待提高。最后,针对问题提出了相关改进措施。     

基于DEA方法对内蒙古工业经济效率的综合评价

本文基于DEA模型和方法,以内蒙古的工业经济为例,从投入产出角度,通过技术效率、规模效率评价内蒙古工业经济效率。以求对内蒙古工业经济资源配置提供建议和参考。     

中国全要素生产率研究评述

本文对改革开放以来中国全要素生产率的相关文献进行了综述,并详细说明了应用传统的索洛余值法、索洛扩展模型、SFA模型、DEA分析方法测算中国全要素生产率时所存在的缺陷和不足,在文章的第四部分就中国全要素生产率的研究方向进行简单的评述,最后指出不要过分强调全要素生产率的作用,结合中国实际情况,创造出一套适合中国国情、能更准确测度中国全要素生产率方法的意义.     

环境规制、技术创新与中国火电行业的效率提升

基于效率的视角,本文对2004年中国30个省(自治区、直辖市)火电行业的环境规制进行分析。首先利用三阶段DEA模型排除经营环境与统计噪音对中国火电行业效率的影响,然后从非规制、弱规制、强规制三个层次分析环境规制程度与中国火电行业效率的关系。实证结果表明,环境规制可以提升中国火电行业整体的效率水平,总体上存在技术创新激励效应,但并非适用各个地区。最后本文根据环境规制与技术效率的关系,将中国各地区火电行业的发展模式划分为内力驱动环境友好型、环境弱友好型和外力推动环境友好型三种,并给出各自适应的规制建议。     

基于DEA的企业技术创新效率评价研究

首先阐述了数据包络分析(DEA)方法的基本原理;其次用SPSS软件对创新投入能力指标和创新产出能力指标进行了筛选,并将DEA方法用于技术创新效率评价的分析研究中;最后应用此方法,选取适当样本,对西安市高新技术企业技术创新进行了效率评价。结果表明该方法不仅可以科学、合理地评价企业技术创新的效率,而且为企业高层管理者采取有效的技术创新策略提供了理论依据和相应的决策支持,具有一定的实用性和可行性。     

房地产企业的规模经济效应分析

文章采用56家房地产上市公司2007年股票市场的数据,定量的分析了房地产业的规模经济效应,并应用数据包络分析法对我国房地产企业的规模经济效应进行评估。结果显示,我国房地产企业存在规模不经济现象。