建立城市长效管理机制存在的问题与对策——以新疆乌鲁木齐市为例

本文分析了欧亚大陆腹地大城市——乌鲁木齐城市管理中体制不顺,基础设施建设滞后;违章占道;户外广告缺乏统一标准等现状问题,提出了建立城市长效管理机制的对策。     

Hedonic house prices and spatial quantile regression

Despite its long history, hedonic pricing for housing valuation remains an active research area, and applications of new estimation methods continually push research frontiers. However, housing studies regarding Chinese cities are limited because of the short history of China’s free housing market. Such studies may, nonetheless, provide new insights given the nation’s current transitional stage of economic development. Therefore, this research makes use of publicly accessible sources to construct a new micro-dataset for an emerging Chinese city, Changsha, and it incorporates quantile regression with spatial econometric modeling to examine how implicit prices of housing characteristics may vary across the conditional distribution of house prices. Substantial variations are found, and the intuitions and implications are discussed. Additionally, the spatial dependence exhibits a U-shape pattern. The dependence is strong in the upper and lower parts of the response distribution, but it is little in the medium range.     

风冷热泵型家用空调器除霜、除冰控制方法研究

对风冷热泵型家用空调器在低温制热过程中结霜、结冰的原因进行了分析,提出几种常用的除霜、除冰的控制方法,结合空调器的实际运行情况提出一种典型的除霜、除冰控制方法。     

上市公司负面声誉与分析师关注:"趋之若鹜"抑或"避之若浼"

本文选取2008-2018年A股上市公司为样本,以公司违规处罚作为负面声誉的代理变量,考察分析师在选择跟踪对象时会否将公司负面声誉纳入考量.研究发现,公司违规处罚导致分析师关注度显著降低.机制检验表明,违规处罚通过降低投资者信息需求和分析师供给意愿两条路径影响分析师关注.拓展性分析发现,公司所受处罚越严重、被罚款金额越多,分析师关注度越低;处罚事件对分析师关注的负面冲击具有长期效应;对于非国有企业和处于高社会信任水平地区的公司,违规处罚对分析师关注的负向影响更显著.本文为深入理解我国证券市场中的声誉机制提供了经验证据,亦为监管机构加大违规惩处力度、借助分析师等市场"看门人"的力量提增监管威慑力提供了政策参考.     

企业环境成本核算的障碍与对策

工业经济快速发展造成了日益严重的环境问题。实施环境成本核算、采取措施控制环境成本对实现可持续发展是非常必要的。目前实施环境成本核算存在观念、制度和技术等方面的障碍。转变观念、强化企业社会责任教育、加强会计法制建设、完善市场调节等将对环境成本核算有积极促进意义。     

A MCGP decision aid for homebuyers to make the best choice

This study adopts a new approach, the multi-choice goal programming (MCGP), to evaluate houses in order to help homebuyers to find better house based on the residential preferences. According to the function of MCGP, homebuyers can set multiple housing goals with multiple aspiration levels. This increases the flexibility to find a suitable house. Compared with other classical methods such as checklist and analytic hierarchy process, MCGP is more efficient, especially while considering a lot of housing criteria and house alternatives. In order to demonstrate the usefulness of MCGP decision aid for housing selection, a real case study is then provided. Furthermore, ten volunteers are invited to participate in the empirical experiment. The results also validate the effectiveness and efficiency of MCGP decision aid.     

浅论空乘专业英语教学法

因就业形势需要,英语教学在空乘专业教学中已成为重中之重。如何营造课堂氛围,因材施教,教之有法,推动学生积极参与,增强学生学习效果。本文结合教学实践,阐述空乘专业英语教学方法的尝试和效果。     

地理资本视角下村级多维贫困测度及贫困类型划分*——基于重庆市1 919个市级贫困村调研数据

[目的]精确测度村级多维贫困以及划分贫困类型,是当前提高贫困识别精准度,进一步推进农村精准脱贫的战略需求。[方法]文章基于重庆市1 919个市级贫困村的调研数据,构建地理资本视角下村域多维贫困测度指标体系,并采用多维贫困测度模型、指标贡献度模型和最小方差方法系统揭示了重庆市贫困村多维贫困程度、贫困类型及其空间分布特征。[结果](1)重庆市贫困村多维贫困程度呈两端大中间小的"哑铃状"结构,贫困程度极化特征显著,区域发展具有不平衡性。空间分布上,贫困村多维贫困程度呈从渝东北、渝东南分别向渝西地区逐渐减轻的特征,贫困村多维贫困程度存在明显的地域性差异;(2)重庆市贫困村贫困类型主要分为单资本缺失型、双资本缺失型、三资本缺失型、四资本缺失型4个类型,其占比分别为9.07%、20.27%、66.91%、3.75%,三资本缺失型是最主要的贫困类型。[结论]重庆市贫困村致贫因素复杂多样,需要根据各自的贫困特征,因地制宜地开展差别化的帮扶工作。科学推进精准扶贫战略,力争实现2020年全面脱贫。