To cluster or not to cluster?: Understanding geographic clustering by restaurant segment

This study tested whether geographic clustering differs by restaurant segment due to the differences in consumers’ hedonic and utilitarian values by using Ripley’s K function and a Tobit model. This study found that higher priced restaurant segments have stronger clusters than lower priced restaurants, which implies that restaurants that focus on hedonic values tend to cluster more than utilitarian focused restaurants. However, the results differ depending on whether or not restaurants are located within a central business district (CBD). For example, quick service restaurants have stronger clusters than casual restaurants outside CBDs. Practical applications may apply to new restaurants that are attempting to open. Up-scale restaurants have the advantage of reducing research costs by locating near similar restaurants. Moreover, casual restaurants do benefit by clustering near existing ones under the condition that demand is not severely hurt by competition, while quick service restaurants benefit by diffusing from each other.     

广州开发区与上海张江高科技园生物医药产业创新对比

生物医药产业是全球公认的具有发展前景的战略性新兴产业，同时也是对专利保护具有高度依赖性的产业，美日欧等生物医药产业强国的经验表明，以园区为聚集形式可以快速拉动生物医药产业发展。从专利视角对广州开发区与上海张江高科技园的生物医药产业创新能力进行对比分析，解析广州开发区生物医药产业的发展现状以及存在的问题，提出了广州开发区生物医药产业发展的对策措施。     

A social-media-based approach to assessing the effectiveness of equitable housing policy in mitigating education accessibility induced social inequalities in Shanghai,China

Social inequalities induced by education accessibility are widespread and concern land use policy makers globally. Yet much of existing research heavily emphasizes on uncovering the spatial patterns of housing price in relation to education resources. This paper aims to renew our understanding of this classical topic by bringing the importance of temporal and institutional dynamics to the fore. Specifically, this research presents a detailed examination of the relationship between school quality and housing rental dynamics under the intervention of equitable housing policy, with special reference to Shanghai, the most developed megacity in China, also one of the first Chinese cities granting equal rights for renters to access schools within the catchment area. Based on time-series housing rental data collected from social media, the t-test discovers that school quality has a significant impact on housing rental prices after the introduction of this new housing policy. Moreover, housing rental prices within high-quality school districts are significantly higher than those within ordinary school districts. The hedonic model and variance partitioning further confirm that school quality is capitalized into housing rental prices, and its relative contribution varies with temporal periods. More specifically, how the relative contribution of school quality changes over time is consistent with the schedule of primary school enrollment and sensitive to policy intervention. The difference in difference model foregrounds that the equitable housing policy does result in rental prices hike in high-quality school districts, i.e., a 13.5 % rental premium of housings within high-quality school districts compared with those within ordinary ones. We conclude that the equitable housing policy fails to achieve the expected goal and propose alternative suggestions for mitigating social inequalities in education accessibility. This study demonstrates a novel methodological framework for evaluating the social consequence of equitable housing policy based on social media data. It unravels how housing rental changes with school district division and the capitalization effect of school quality in housing rental prices.     

Unemployment durations and local labour market conditions

ABSTRACT

Unemployment durations vary across local authority districts in the UK. We explore the extent to which this variation is explained by differences in local labour demand as opposed to composition, business cycle and regional effects. We use seventeen waves of the British Household Panel Survey to identify the determinants of the duration of unemployment spells. Once we adjust for individual-level, business cycle and regional controls, we do not find evidence that living in a local authority district with relatively high unemployment is associated with longer spells of unemployment. This indicates that differences in labour demand operate at larger geographic scales, such as between large regions. Our findings have implications for the design of policies to help high unemployment districts.     

Mainstreaming sustainable adaptation to climate change into municipal planning: An analysis from the Eastern Cape,South Africa

Municipalities are well positioned to support adaptation of vulnerable people to climate change; however, they seldom integrate climate change into their planning for social development. The building of adaptive capacity for sustainable adaptation requires that municipalities understand and mainstream climate change into their plans, and develop context-specific adaptation strategies that address existing social development issues. A desktop analysis was conducted to compare the planning landscape in six District Municipalities in the Eastern Cape, South Africa, focusing on Municipal Integrated Development Plans (IDPs). A scoring system was developed for comparing the IDPs of the municipalities, based on levels of context-specific information about climate change, mainstreaming of climate change with other development concerns, and vertical integration across district and local municipalities, amongst other themes. Overall, the mainstreaming of climate change in municipal IDPs in the Eastern Cape remains weak, and requires critical attention if sustainable adaptation is to be achieved.     

基于气候区划的中国建成区绿地率 区域差异研究

气候是影响城市绿地的基础性自然因素,定量研究气候对建成区绿地率的影响,利于合理调控城市绿地建设。以中国县级市及以上城市为样本,综合运用标准差、变异系数和锡尔系数等方法,探究1996—2015年不同气候区划建成区绿地率区域差异状况。结果表明：1)从发展水平看,不同气候区划具显著差异,热带高于温带,湿润、半湿润区高于半干旱、干旱区,其中,热带与湿润区、半湿润区城市重合度高,是气候优势区位;2)从差异度看,不同气候区划差异度具明显区别,温带差异度高于热带,干旱、半干旱区高于湿润、半湿润区;3)从差异分解看,温度带间建成区绿地率不平衡对全国总差异的影响度大于干湿区间,温度带间差异是我国总体差异的主要原因。以期为揭示气候对城市绿地建设水平的影响作用提供理论依据。     

中国建成区绿地率区域差异的多尺度分析

建成区绿地率区域差异具有显著的尺度依赖性,基于多尺度视角对其进行分析、综合研判不同尺度间关系,可更确切且全面地揭示其特征,为探寻最佳研究尺度,以及制定兼具差异化和协调性的城市绿地建设决策提供科学依据。综合运用标准差、变异系数、锡尔指数和尺度方差等方法,将地带、省、市3个尺度纳入统一的分析框架,探究1996—2015年中国建成区绿地率区域差异。1)差异测度研究表明,自1996年以来,我国建成区绿地率区域差异在3个尺度上长期存在,均呈现缩小趋势,并表现出明显的尺度效应。2)尺度方差分解结果显示,建成区绿地率尺度方差及构成由大到小依次为市级、省级、地带级,即尺度越小,其尺度方差越大,对区域差异的贡献份额越大。     

基于熵值法的区级新型城镇化评价指标体系研究

为了科学利用新型城镇化评价指标体系对西安市莲湖区进行指导和监督，明确发展不足、优化下一步发展目标，在明确西安市莲湖区发展特征及发展趋势的基础上，构建经济发展、社会进步、环境优化、文化传承等4个系统新型城镇化质量评价指标体系。运用熵值法对西安市各区县发展水平进行综合测度。结果表明，莲湖区在西安市排名第三，经济发展、环境优化方面存在不足。     

住宅小区安装工程预结算造价确定与控制

本文从现阶段住宅小区安装工程预结算存在的问题出发,提出住宅小区安装工程预结算造价确定与控制对策。     

EPC工程总承包项目“区域分包模式”的管理实践

当前,我国许多传统设计研究院正致力于向国际型工程公司的转型,这一转型过程中的一项重大挑战就是对分包商的管理,本文通过中铝国际"区域分包模式"的管理实践以及效果的分析,对EPC模式下的分包管理模式进行了探讨。