城市轨道交通对房地产价值影响研究综述

发展城市轨道交通的核心问题是筹集资金,而轨道交通的建设会促进沿线房地产的增值,如何将轨道交通的这种外部效益转化为内部效益是需要进行研究的课题。通过对国内外学者关于轨道交通引起房地产价值增加的研究成果,以及轨道交通与土地利用综合开发的实例论述,结合我国的发展实际与存在问题,提出了基于轨道交通的土地利用、增值与返还策略。     

自由现金流与企业过度投资——基于内外部约束视角的实证研究

在我国转型经济的制度背景下,基于公司内外部约束视角,以我国制造业2001年—2012年主板上市公司为研究对象,研究了自由现金流与企业过度投资的关系,以及公司外部负债融资和内部公司治理机制对于过度投资的约束作用。研究表明:企业留存的过量自由现金流会造成企业的过度投资现象,而企业外部的债务约束以及内部完善的公司治理机制可以较有效的约束这种过度投资现象。结论对于建立约束企业过度投资行为的机制,提高企业投资决策效率具有理论和现实意义。     

论土地政策的分类

本文在简要分析了土地的一般及法定的分类之后 ,对土地政策分类的几种主要观点进行了剖析 ,并对土地政策如何分类的有关问题作了比较深入地探讨。     

Determinants of island tourism development: The example of Dachangshan Island

Islands possess their own patterns of spatial and temporal evolution as tourist destinations. Taking Dachangshan Island as an example, two key stages were identified: a 'landscape-oriented' period from 2002 to 2009, and a 'background' stage from 2009 to 2012. Co-existing with both periods was changing spatial and land-use patterns of expansion and intensification. Using spatial mapping techniques, it was found that tourist resources were found to be the original driving force, tourist transportation and social and economic factors were endogenous determinants of change, and tourist enterprises and source markets subject to government policies the exogenous factors.     

Research agenda for low-carbon mobility: Issues for New World cities

ABSTRACT

Low-carbon mobility (LCM) features strongly in debates about the sustainability of cities and their resilience in the face of demographic, economic, and climate change. Transport is a major source of carbon emissions and there are indications that these continue to increase, despite the considerable recent advances in vehicle, engine, and fuel technologies. Reducing carbon emissions from transport may become more difficult, not easier. A particular issue relates to the New World cities, typified by those of North America and Australasia, which largely developed from the latter half of the nineteenth century onward and whose transportation systems were largely based around private vehicle ownership and usage. These cities are typically composed of low-density, dispersed suburbs, which are highly car dependent and resource and carbon emission intensive. This article develops a research agenda directed at determining and testing policy and planning measures relevant to the quest for low carbon mobility in New World cities. It suggests a rich agenda for essential research on LCM. Much of this agenda falls within the realm of the integration of transport and land use, with attention to urban design details to enhance the perceptions of and opportunities to use low carbon transport alternatives. Research topics identified for LCM research include (1) urban design and land use–transport integration (LUTI), (2) low carbon mobility policies directed at achieving widespread behavior change, (3) opportunities for new technology and its application, including requirements for systems and infrastructure, and (4) analysis and tools for informed decision making, including modeling, measurement, visualization, and especially assessment.     

Growth-focused or profit-focused firms: Transitions toward profitable growth

Profitable growth is the most desirable state tourism and hospitality firm managers can hope to achieve. In reality, however, it is not easy for a tourism and hospitality firm to consistently grow and accumulate profits. In order to achieve profitable growth, some firms focus on sales growth while victimizing profits, while others concentrate on profits and hold off on growth. To better understand these strategies, this study investigated the growth state, profit state and transitions of restaurant firms. The findings of this study supported that profit-focused firms are more likely to achieve profitable growth than growth-focused firms. In addition, growth-focused firms with low liquidity had a higher likelihood of transitioning to a state of low growth and low profit in the short-term, and this liquidity effect was more serious for small firms in terms of long-term performance. Further, when profit-focused firms had few growth opportunities, large free cash flows increased the likelihood of transitioning to a state of low growth and low profit in the short-term. More detailed results are provided in this paper.     

气候舒适度对热点城市入境游客时空变化的影响

文章选取东部18个城市分析气候舒适度的年内时空变化,将其年内变化分为3种类型：倒＂U＂形、＂M＂形、宽＂U＂形。收集2005～2007年各城市入境客流量,分析其年内时空变化状况,将其年内变化分为4种类型：＂W＂形、倒＂U＂形、＂M＂形、＂U＂形。年内客流量重心变化与气候舒适度重心变化具有很强的时间同步性,说明气候舒适度是影响客流量空间分布的重要因素。在客流量月指数与气候舒适度指数比较的基础上,建立了入境旅游客流量月指数模拟模型。利用旅游资源丰度、经济发展水平、综合气候舒适指数3个因素,建立其与客流量地域分布的统计关系,结果显示：综合气候舒适度指数每变化1个单位,客流量将增加（或减少）7.659万人。     

基于多情景的景区自然灾害风险评价方法研究——以九寨沟树正寨为例

文章采用参与式地理信息系统(PGIS)技术,模拟景区未来典型自然灾害风险情景,建立典型致灾因子强度与灾害风险情景对应关系;对旅游资源、旅游设施进行分类,分析游客居民景区内时空分布特征,建立致灾因子强度与景区承载体的脆弱性对应关系;最后通过拟合风险曲线,建立景区综合灾损模型并预测出多情景年均损失。综合景区利益相关方可接受风险,基于灾损和防灾成本进行风险决策。案例研究以九寨沟树正景群为例,模拟九寨沟在分别遭遇20、50、100、200、500、1000年一遇6种暴雨情景下引发泥石流的流速、流量和冲击力,建立6种情景泥石流与树正景群脆弱性关系;预测6种情景潜在损失和人员伤亡;结合可接受风险,提出九寨沟树正寨未来自然灾害防灾降险措施。     

城市土地利用系统复杂性研究

在简要介绍复杂性科学发展的基础上，针对城市土地利用系统的特点，文章分别论述了城市土地利用系统的特征和复杂性研究的方向，为更有效地进行城市土地资源的管理和开发，提供了一些新的思路。