Is distance really dying? Transportation and knowledge spillovers

Enhanced transportation infrastructure improves the frequency of travel and facilitates face-to-face communication. Will the resulting reduction in travel cost mitigate the geographical concentration of knowledge spillovers? Our empirical strategy exploits China's mass expansion of its intercity high-speed railway network as a natural experiment. Using patent citations as the proxy for knowledge spillovers, we find inventors increasingly rely on more distant knowledge after rail connection and newly connect cities' innovation performance improves substantially.     

放马滩秦地图林业交通史料研究

天水放马滩1号秦墓出土的年代为战国时期的木板地图,可以提供重要的历史文化信息,对于中国古代地图史、测量学史和地理学研究的进步各有重要意义,从中我们也可以发现反映生态环境面貌的内容。放马滩地图突出显示"材"及其"大"中"小"以及是否已"刊"等,都应理解为林业史料。有关秦人先祖"养育草木"的历史记忆,说明林业在秦早期经济形式中也曾经具有相当重要的地位。关于某种"材"运程若干"里",以及如何"道最"等与运输方式有关的信息,乃至"闭"的设置等,均体现林区交通开发的记录和导引的图示。     

Intermodal freight terminals: locality and industrial linkages

The areas around eight Canadian intermodal freight terminals form the focus of this study. Two basic research questions are addressed: What is the character of the zones adjacent to the terminals and what is the functional tie between industries located in these zones and the terminals themselves? There are three seaports (Halifax, Montreal and Vancouver), three airports (Dorval‐Montreal, Pearson‐Toronto and Vancouver) and two rail yards (both in the Toronto region) in the study. In total, 196 manufacturing and wholesaling firms were part of the study. Transportation land use is areally most extensive in six of the eight terminal zones. Industrial land use, while significant in area, is not the most dominant land use surrounding any of the terminals. No one socio‐economic characteristic defines the areas around the terminals. Businesses in close proximity to the terminals make rather modest use of the terminals. Less the 30 percent of the interviewed firms used the nearby terminal for their freight shipments; only 3 percent of the firms indicated that proximity to the terminal was a primary locational consideration. The relationship between industrial location and the terminals is more indirect, than direct, based on the high level of accessibility found in the terminal zones.     

中国城市密集区航空运输联系研究

城市密集区间的航空运输联系导致城市间的内聚效应和空间互动。城市密集区间的航空运输联系具有明显方向性。京津唐、长江三角洲和珠江三角洲城市密集区间航空运输联系密切,国家级大都市与国家级大都市(区域性大都市)间联系具有普遍性,而与地方性城市中心间航空运输联系具有特殊性。长江三角洲、珠江三角洲和京津唐城市密集区等为人流与信息流联系密切的、以辐射为主的航空中心;辽宁中南部城市密集区为航空运输联系欠密切的、人流辐射与信息流集聚中心;四川盆地城市密集区为航空运输联系欠密切的、人流集聚与信息流辐射中心。     

从改革开放前后两个时期的历史性质及其相互关系上认识中国特色社会主义道路的内涵

对中国特色社会主义道路的内涵,可以从理论上认识,也可以从历史上认识。从历史上认识,最重要的是弄清改革开放前后两个时期的历史及其相互关系。党的十七大报告关于改革开放事业与党的三代中央领导集体关系的论述,为我们正确认识这一问题提供了重要指导思想。只要根据这一指导思想考察改革开放前后两个29年的历史,就会清楚地看到,前者是探索中国社会主义道路的历史,后者是开创并全面发展中国特色社会主义的历史;前者是后者的基础,没有前者的成就和正反两方面的经验做基础,就没有后者的飞速发展;后者是前者的继承、扬弃和完善,没有后者的改革开放,前者也难以为继。前后两个29年虽然有很大区别,但都内在地统一于科学社会主义原则之下。     

京津冀交通路网结构特征及其演变的分形刻画

交通一体化是京津冀协同发展的基础和前提，合理的交通网络结构对提升城市群整体效能意义重大。本文基于1995-2030年多源交通路网数据，运用分形思想，研究京津冀以城市群为节点体系的交通路网空间结构特征及演化趋势。主要结论如下：①京津冀高等级路网仍有一定扩展潜力，交通网络整体等级结构尚不稳定，未达到一种优化的分形递阶状态。②各级路网空间分布具有自仿射特征，但各向异性扩展强度正在逐渐减弱，城镇化和交通一体化战略的实施正在促进各级路网逐渐向自相似的结构一体化方向演化。③交通路网空间结构演化与城镇用地结构不同步，可能与系统所处城镇化发展阶段有关。④高等级路网分维演化服从次数大于1的logistic模型，按照规划预期，各级路网空间发育将相继在2040年前后达到饱和；但按照规划设计高速公路建设将过度饱和，未来应及时调整规划。     

旅游小企业与旅游地社会文化变迁:阳朔西街案例

本文以阳朔西街的旅游小企业为例对旅游小企业与旅游地社会文化变迁的关系进行了具体分析。论文首先研究了西街旅游业发展以后产生的种种社会文化变迁的现象,在此基础上分析了西街的旅游小企业在旅游地的社会文化变迁中所发挥的作用:西街旅游小企业的经营内容之一就是中西方文化的交流;旅游小企业的从业人员成为社区社会文化变迁的先锋人群;西街旅游小企业是当地居民与外来游客进行交流或沟通的一个平台。最终文章得出旅游小企业的存在直接促进或加速了社区的这种社会文化变迁的研究结论。     

Communicating Climate Change: Are Stories Better than “Just the Facts”?

Postpositive policy scholarship has long asserted the importance of narratives—or stories—in shaping public policy through public opinion. In part, the Narrative Policy Framework (NPF) was developed to empirically test this assertion. To assess the relationship between policy narratives and public opinion, NPF posits several causal mechanisms including narrative transportation. Narrative transportation is a measure used to assess the extent to which individuals exposed to a story are “transported” into that story. NPF hypothesizes that as narrative transportation increases the reader of the story will (i) have more positive affect for characters within the story; and (ii) will find the story more persuasive. Using an online experiment involving a nationally representative sample of over 1,700 respondents, this research tests narrative transportation hypotheses by exposing subjects to one of three Cultural Theory narratives about climate change, as well as a control list of scientifically agreed upon facts. While findings do not support that narratives are any more transportive than fact lists in terms of directly persuading respondents to accept specific climate change policies, the data do show that narrative transportation positively influences affect for hero characters, which extant research demonstrates indirectly influences the persuasiveness of a story.     

Running road races as transgressive event mobilities

Running is a unique form of mobility because while it involves traveling over distance, it is not usually done as a means of transportation. Although running can and does take place almost anywhere, bringing together hundreds or thousands of runners at a time via an event known as a road race enables a different, transgressive occupation of space that no one runner could accomplish on his or her own. In this paper, based on participant observation, I argue that the transgressive but sanctioned nature of the mobilities that road races allow, by temporarily taking over a space devoted to motorized vehicles and turning it into a space for pedestrians, defines these events as unique moments that are only possible through the collective nature of this usually solitary form of mobility and that allow for the pleasure of being transgressive without the risks that transgression normally entails. The paper further argues for considering ‘event mobilities’ as more than traveling in order to participate in an event, because some kinds of mobility are only possible in the context of an event.