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.     

OTC trades and liquidity in the European carbon market more than meets the eye

ABSTRACT

This study investigates whether the previously reported price impact of OTC trades in the EU ETS can be attributed to their distinctively larger size (liquidity related) or to their discretionary feature (information related). The findings suggest that OTC trades induce volatility shocks that are higher in magnitude and faster resolved than those of solely high trading-intensity trades, which appears to be driven mainly by their presence, rather than by their size. An analysis of intraday price premia reveals that they are strategically placed by interacting with the organized market whenever their price and volatility impact is lower.     

中国绿色能源高质量发展水平测度研究

在"创新、协调、绿色、开放、共享"五大发展理念中,绿色协调发展成为关系中国可持续发展全局的重要理念,而绿色能源高质量发展是绿色高质量发展中的一个重要有机组成部分。本文构建了涉及绿色能源投资、生产、消费和减排4个系统的9个细化指标,利用熵权TOPSIS法实证测度2017年中国绿色能源高质量发展水平,并深入分析各区域之间的差异。通过研究发现:中国30个省区绿色能源高质量发展的水平在4个子系统和综合水平方面的表现均存在差异,综合水平总体呈现"东中部高且比较接近,而西部中等偏低"的区域分布格局;然后依照绿色能源高质量发展综合水平的高低,把30个省区划分为领先型、中等型和落后型3种类型。进而深入把握中国绿色能源高质量发展水平的区域分布规律,为统筹推进各省区协同提升中国绿色能源高质量发展水平提供较为可靠的依据。     

海绵城市建设背景下的景观设计探索——记天津大学新校区景观设计

海绵城市是从城市雨洪管理角度来描述的一种可持续的城市建设模式。以天津大学新校区景观设计为例,阐述基于海绵城市建设基础上的景观设计方法。结合基地现状及上层规划,通过水敏感度分区和开发强度分级,架构了由渗透、滞留、储蓄、净化、利用和排放雨水技术手段组成的绿色水生态系统,建立削减暴雨径流量、增加水系调蓄能力、提高雨水外排速度的三重安全排水保障机制。并将雨洪管理技术与北方盐碱地区排盐措施相结合,最终达到生态雨洪管理与景观可持续发展的双赢目标。     

Does china income FSDs follow Benford? A comparison between Chinese income first significant digit distribution with Benford distribution

Since Benford’s law is an empirical phenomenon that occurs in a range of data sets, this raises the question as to whether or not the same thing might be true in terms of the Chinese income distribution data. We focus on the first significant digit (FSD) distribution of Chinese micro income data from the 2005 Inter-Census sample, which corresponds to 1% of Chinese population and other micro income data from the China family panel studies (CFPS) and Chinese General Social Survey (CGSS). We use information theoretic-entropy based methods to investigate the degree to which Benford’s FSD law is consistent with the FSD of Chinese income data and our findings suggest consistency between the Chinese FSD income distribution and Benford’s distribution. The close connection between the two distributions has implications for the quality of the sample of Chinese micro data.     

浅谈绍兴市调整产业结构和提高出口竞争力对策

绍兴市的纺织原料及纺织制品出口是其出口的传统行业,占绍兴市总出口比重从2003年以来一直处于60%～70%之间,是绍兴市出口的重中之重,保持了比较快的发展速度,但增长方式的落后,严重影响了其发展速度的进一步提高,增长方式亟待转变。高附加值、高科技含量行业的出口发展,促进了绍兴市的出口发展,也为今后更好地进行绍兴市出口能力提升提供了资源和保证。但是,由于绍兴市的经济结构和出口产品存在着诸多制约因素和问题,它还不能适应地区与国家经济发展的需要,所以,在对近些年来绍兴市经济结构和产品出口现状和问题的分析基础上,对绍兴市如何进行产业调整和提高出口产品竞争力提出了相应措施。     

浅析窃电现象及反窃电措施

文章认为电已成为人类社会生存和发展进步所不可缺少的一种重要能源,它不仅给人类带来光明,更重要的是推动了现代化大生产和现代科技的进程。但是随着经济的发展和用电量的增大,尤其伴随着市场经济体系的建立,窃电问题变得越来越突出,国家为此蒙受了巨大的经济损失。窃电问题不仅困扰电力企业的发展,也严重影响了国家的经济建设和社会的稳定。     

岩爆的发生机理及防治措施

岩爆是隧道主要地质灾害之一,给施工带来不利的影响,秦岭终南山经理部在岩爆防治上作了大量的探索和尝试,并取得了明显的效果,希望能为以后的工程提供一些有益的参考。     

长沙市地下管线测量数字化的更新、软件升级及应用

地下管线的主要特点是隐蔽性,地下分布纵横交错,年代已久的原有手工数据几乎无参考价值且存档不便、使用复杂、工作量大。使用自主开发升级后的计算机程序软件,不仅可以大大提高地下管线测量数据的更新、规划设计及施工的效率,而且可以通过CAD图形分析对特殊地段重要管线是否保留利用作出决定。     

工程结构基于震害损失的动态投资优化

建立了工程结构投资与地震灾害损失之间的一般关系,给出了工程动态投资的评价方法.最后通过一个算例对工程结构投资优化方法进行说明.