开放视角下能源消费对经济增长的影响研究——基于长江经济带沿线城市的动态面板数据分析

This paper analyses the dynamic effect and mechanism of energy consumption on economic growth in the context of open economy by using the panel data of cities along The Yangtze River Economic Belt over 2000-2014. Moreover, this paper compares the differences among three subsamples, Yangtze River Delta, middle reaches of the Yangtze River and Chengdu-Chongqing City agglomeration. We find that, both energy consumption and open economic variables are important factors to promote the growth of economy in the Yangtze River economic belt, and the positive effects of energy consumption impact on economic growth is the largest in the middle reaches of the Yangtze River, followed by the Chengdu-Chongqing City agglomeration and the Yangtze River. The direct effect of trade and FDI on economic growth are more significant in Yangtze River Delta than the others; moreover. We also find that international trade spur economic growth indirectly by improving the efficiency of energy only in Yangtze River Delta     

A Note on Logistic Regression and Odds Ratios

Abstract

Observed seat belt use on a private university campus was compared with use by the general population of the state in which the university is located. It was expected, given the higher educational level and socioeconomic status of the university population, that seat belt use would be higher than it is for the general population. The results of the study indicated that seat belt use by members of the university community was actually significantly lower than that reported statewide. The statistically significant difference was even greater for front-seat passengers than for drivers on campus.     

我国粮食安全产业带建设:现实意义、约束条件与实施对策

国家粮食安全产业带是中央政府基于当前国内粮食安全形势和复杂国际形势科学研判提出的全新概念,不仅具有保障粮食安全、构建全产业链发展格局、优化粮食生产布局的深刻内涵,还具有提高粮食综合生产能力、促进粮食产业高质量发展、推进农业现代化发展的重大意义。为此,围绕“在哪建”“谁来建”“如何建”三大问题进行科学分析明确国家粮食安全产业带建设的地点、主体和重心,捋顺国家粮食安全产业带建设思路。研究发现当前国家粮食安全产业带建设面临着要素资源约束、内生动力不足、传统产业转型升级困难、区域协同发展不充分等问题。针对问题提出完善资源要素保障体系、发挥政策引导扶持作用、推动粮食产业转型升级、构建区域协同发展机制等对策建议。     

美国沿太平洋经济带人才集聚主要原因的历史探析

本文主要以加利福尼亚和硅谷为例,论述开发较晚,人才匮乏的美国太平洋沿岸是如何成为人才集聚的新兴经济带的。认为历史机遇、政策导向、事业平台是最主要的原因。其次,美国技术边疆开拓者的创新精神和吸引凝聚力起了重要作用。     

长株潭湘江风光带休闲体育资源配置的研究

湘江风光带是长株潭城市群市民体育休闲的重要场所,分布有球场、健身设备、自行车、沙滩浴场等体育场地和设施;市民参加休闲体育锻炼的动机主要在于增进健康、娱乐消遣、减肥美体、调节心情等;影响长株潭湘江风光市民参与休闲体育锻炼的因素主要有场地器材、天气、时间等;其形式主要与朋友同学同事、家人,或团体组织、独自一人参加锻炼;体育锻炼的项目包括长跑（走）、球类、舞蹈、健身器械、轮滑等。尚存在场地设施不足、建设结构不合理、利用率低、开发不够等问题。应加快湘江风光带体育场地设施建设,多重利用、开发与整合湘江风光带周边休闲体育资源,使资源得到更好的配置,以促进长株潭市民休闲体育运动的持续发展。     

《琉璃宫史》中的佛舍利

主要依据缅甸<琉璃宫史>,参照南传<大般涅槃经>以及北传经典,对佛陀舍利的来龙去脉以及佛舍利在不同文献中的记载数量进行考察,并对缅甸国王阿奴律陀迎请妙香国和斯里兰卡佛牙的事迹进行了梳理和探讨.     

辽宁县域经济发展的制约因素与基本问题

目前我国经济由“单极突进”发展为“多轮驱动”,辽宁经济需要在“多轮驱动”中闯出新路。辽宁县域经济发展的制约因素包括制度瓶颈、“东北现象”、经济总量较小、工业中龙头企业较少、经济增长方式落后、资金不足等。在辽宁县域经济科学发展过程中,体制改革和制度创新是关键,解决好“为谁发展”、“怎样发展”、“发展什么”3个基本问题是根本。辽宁县域经济的发展要关注民生问题、社会公平问题,要进行要素整合协调发展并培育龙头企业,还要结合“五点一线”区域经济的增长极模式,注意处理好制度创新与经济增长的关系。     

带传动装置的振动研究

对带传动装置的振动进行了实验研究,测试了在不同带轮偏心配置及不同转速下带轮的纵向振动,发现带轮偏心造成的离心力和由变频调速 引起电机的随时间震荡的电磁转矩是造成振动的主要原因。     

Effects of Increased Auto Safety Belt Use Levels on Fatalities

To reduce the annual toll of highway deaths, more than 30 states have passed laws mandating the use of safety belts. All have been effective at raising safety belt use; equipped with different provisions and enforced with unequal care, however, they have done so to different degrees. The article estimates the relationship between attained belt use and fatalities averted. Monthly 1982-1986 fatality, collision, belt use, and other data from 64 areas in nine states were collected, then analyzed using a Poisson multiple regression model. The analysis indicates that an increase in belt use from 14-40% averts about 13% of fatalities; a more pronounced increase to 50% averts about 18%. An increase from 50-75% averts about 16% of remaining fatalities. Three significant conclusions emerge. First, previous estimates appear to have understated, in general, the overall effectiveness of belt use laws. Second, the benefits of programs to boost safety belt use in this country from its current level of about 50% to up to 75%, estimated on the basis of more direct evidence from U.S. data than previously available, appear to be very large. Third, Poisson and other multiple regression models including explicit allowance for other causal factors can usefully complement other statistical approaches in traffic safety studies.     

以高铁运行审视“哈长沈大”城市带发展

以高速铁路为载体的城市群联动效应正在改变区域发展空间格局.然而,对那些想以高铁建设来实现发展梦的城市,究竟能否如愿还需实践证明.文章以“哈大高铁”沿线城市为考察对象,利用“去哪儿”网客运列车预定系统抽取城市铁路关联信息,构建东北狭长城市带发展的三重差分评价模型.结果发现:哈大高铁缩短了城市间的时空距离,大城市间的关联度相较之更为明显;城市铁路吸附能力强弱分层明显,提早开通高铁的大城市能够借助“吸附效应”获得短期增长,使经济带沿“哈大高铁”呈现“极化轴”特征.通过识别东北城市铁路可达能力为高铁所改变的过程中其对城市经济发展的影响,审视以轴线城市为重心的东北城市带发展态势对周边中小城市可能形成的未来发展约束.