沈阳市住房价格空间分异格局及其影响因素研究

本文以我国典型的老工业城市沈阳为例来分析其住房价格空间分异特征与影响机理。通过大数据方法获取该市1450个住宅小区的房价及特征数据，利用Kriging空间插值法模拟其房价空间分布格局，并从社区、公共配套设施和交通出行等方面构建地理加权回归模型，探究各因子对房价空间分布的影响机理。结果表明：①沈阳市住房价格呈现出多中心的空间结构，且长白区域已成为新的价格峰值区。②特征因素对住房价格的影响具有显著的空间异质性，其中，公共配套设施和地铁站对房价表现出较高的影响力，并对住房价格的作用程度呈现明显空间差异性。③受“强政府、弱市场”等的长期影响，政府调控下的城市资源分配不均衡成为沈阳等老工业城市住房价格空间分异的根本原因。     

多伦多华人超市的空间演变

本文通过实地调查及案例分析对加拿大多伦多华人超市的发展、空间变化及其原因进行了分析。随着时间的推移,多伦多华人超市从原先市中心的中国城向周边地区有明显扩散。多伦多华人超市的发展与加拿大华裔移民的增加有很大的联系。大量华人对中国食品的眷恋成为华人超市发展的主要驱动力,其空间分布反映出华人生活范围在不断扩大。而商业店铺租金、政府的税收制度等也促进了华人超市的发展及空间格局变化。但在中国传统文化的影响下,过分强调通过个人努力而实现自我成功,缺少团结合作。因此,尽管华人超市在数量上已经与本地部分连锁超市旗鼓相当,但由于华人超市处于各自为营的状态,在某种程度上也限制了华人超市更进一步的发展。     

SPATIAL BARRIERS AND INFORMATION PROCESSING IN HOUSING MARKETS: AN EMPIRICAL INVESTIGATION OF THE EFFECTS OF THE CONNECTICUT RIVER ON HOUSING RETURNS

ABSTRACT. Relative to financial securities markets, information is a scarce commodity in real estate markets. If information diffuses quickly in real estate markets, then we can infer that telecommunications play an important role. On the other hand, spatial barriers such as rivers can slow down the assimilation of relevant information if face-to-face contacts are an important source of information. We examine whether and how the Connecticut River (along with bridges) alters the nature and strength of spatial diffusion of information on housing returns. We report strong evidence that the Connecticut River slows down the spatial diffusion of information and that its effects are consistent with face-to-face contact, as opposed to telecommunications.     

城市广场:城市制约中的空间政治

现代性的线性时间维度向后现代的空间转向,是一种典型的文化表征。城市广场,作为当代城市生活转向空间存在的"第二自然"。它开始成为一种超越空间二元对立模式划分的"异位空间",并具有了特定的空间文化意味与空间政治学色彩。即城市广场的空间狂欢、类民主化的自由集市和秩序失序后的再秩序化是其显著的特征。这些都使得城市广场成为一个具有后现代意味的文化空间。     

PERSISTENCE OF REGIONAL UNEMPLOYMENT: APPLICATION OF A SPATIAL FILTERING APPROACH TO LOCAL LABOR MARKETS IN GERMANY*

ABSTRACT The geographical distribution and persistence of regional/local unemployment rates in heterogeneous economies (such as Germany) have been, in recent years, the subject of various theoretical and empirical studies. Several researchers have shown an interest in analyzing the dynamic adjustment processes of unemployment and the average degree of dependence of the current unemployment rates or gross domestic product from the ones observed in the past. In this paper, we present a new econometric approach to the study of regional unemployment persistence, in order to account for spatial heterogeneity and/or spatial autocorrelation in both the levels and the dynamics of unemployment. First, we propose an econometric procedure suggesting the use of spatial filtering techniques as a substitute for fixed effects in a panel estimation framework. The spatial filter computed here is a proxy for spatially distributed region‐specific information (e.g., the endowment of natural resources, or the size of the “home market”) that is usually incorporated in the fixed effects coefficients. The advantages of our proposed procedure are that the spatial filter, by incorporating region‐specific information that generates spatial autocorrelation, frees up degrees of freedom, simultaneously corrects for time‐stable spatial autocorrelation in the residuals, and provides insights about the spatial patterns in regional adjustment processes. We present several experiments in order to investigate the spatial pattern of the heterogeneous autoregressive coefficients estimated for unemployment data for German NUTS‐3 regions. We find widely heterogeneous but generally high persistence in regional unemployment rates.     

昆明市保障性住区居民就业空间特征及其收入效应分析

保障性住房建设解决了大量城市低收入家庭的住房问题,但大多区位偏远、交通不便,远离城市就业中心,导致低收入人群的通勤成本上升,进而对其就业和收入产生影响。本研究以昆明市为样本城市,选取廉租房、公租房和经适房3类保障性住区,利用通勤距离、通勤时间、通勤方式、工作地点等指标,从居住-就业空间匹配角度,揭示保障性住区居民就业空间特征;并通过建立包含空间虚拟变量的多元回归方程,揭示了保障性住区居民就业空间特征对其收入的影响。     

CHINESE COMMERCIAL ACTIVITY IN THE TORONTO CMA: NEW DEVELOPMENT PATTERNS AND IMPACTS

This study, which examines recent development patterns of Chinese commercial activity in the Toronto CMA, yielded three major discoveries. First, new development in the past 15 years brought about not only a proliferation of ethnic Chinese businesses, but also considerable changes in business structure: the traditionally predominant restaurants and grocery stores declined substantially in proportion, but businesses that provide various types of consumer services expanded greatly. This indicates that the Chinese community has been steadily building a more complete and more self-sufficient ethnic economy. Second, while Toronto's three central-city Chinatowns have remained, most new developments occurred in the suburbs. Consequently, the spatial organization of Chinese commercial activities has become multinuclear, and their rapid spreading has begun to modify Toronto's traditional retail landscape. The third, and perhaps the most revolutionary, characteristic of the new development is the shift from unplanned retail strips to planned shopping centres, with the change of ownership from leasing of retail space to selling of store units. The new occupancy system, known as condominium retailing, is new to Canada and is associated only with ethnic Chinese retailing. In importance, condominium retailing has challenged both the conventional leasing system that has governed the development and operation of North American shopping centres over the past 40 years and long-established local planning systems. L'étude des nouvelles tendances du commerce chinois dans la région métropolitaine de recensement de Toronto a mis en évidence trois faits essentiels. Premièrement, le développement des 15 dernières années s'est traduit non seulement par une multiplication du nombre des commerces chinois, mais aussi par un bouleversement de la structure commerciale: les restaurants et les épiceries, jusqu'alors prédominants, ont vu leur importance relative diminuer au profit de magasins qui offrent des services aux consommateurs. Ceci reflète le fait que l'économie forgée par la communauté chinoise est de plus en plus autosuffisante. Deuxièmement, alors que les trois Chinatowns du centre de Toronto se sont maintenus, la plupart des nouveaux développements ont eu lieu en banlieue. Par conséquent, l'organisation spatiale des activités commerciales chinoises est devenue polynucléaire. Cette rapide propagation commence à modifier le paysage traditionnel du commerce de détail torontois. Troisièmement, et c'est peut-être là le fait le plus marquant, l'étude a révélé une révolution complète du mode d'organisation et de propriété des magasins. Aux groupements spontanés se sont substitués des centres commerciaux au sein desquels les commerçants ne sont plus locataires mais propriétaires de leur espace de vente. Ce système, que l'on pourrait baptiser le « condominium commercial » est un nouveau phénomène au Canada et ne concerne, pour l'instant, que les commerces chinois. Néanmoins, par son succès, le « condominium commercial » a remis en question les systèmes traditionnels de planification locale, aussi bien que le système classique des baux, qui a présidé au développement des centres commerciaux nord-américains au cours des 40 dernières années.     

ECONOMIES OF SCALE AND ENTRY IN SPATIAL MARKETS

For the purposes of simplicity, short-run cost functions are widely used in spatial markets literature, even when the long-run effects of entry are in question. In this paper, I show that if a long-run cost function is incorporated into a Löschian model, counter-intuitive and novel performance characteristics can result. Under some circumstances welfare per area can decrease as cost levels decrease.     

中国城乡协调发展空间格局与演化研究

本文从三个方面构建了城乡协调发展度指数,对中国2000-2008年31个省城乡协调发展程度的整体变化及在大区上的空间差异进行了评价和原因探讨。结果显示,中国城乡协调发展程度整体呈现上升趋势,主要原因是城乡增长率差异系数的降低,说明我国近些年的支农惠农和统筹城乡发展的政策效果显著。东部和西部地区城乡发展逐步协调,而中部和东北地区城乡发展协调度下降。东部城市和农村基本实现共同富裕,而西部是较低水平上的协调。东北地区先大幅下降后缓慢上升,中部地区的城乡协调发展度目前是最低的,变化较为复杂。     

RENEWING URBAN RENEWAL IN LANDSKRONA,SWEDEN: PURSUING DISPLACEMENT THROUGH HOUSING POLICIES

The city of Landskrona in the South of Sweden has never fully recovered from a phase of heavy deindustrialization during the 1970s and 1980s. After years of socially inspired plans and projects, the local authorities have now decided to shift gear and tackle problems of criminality, unemployment and social exclusion through a renovation and eviction plan of the inner city. The basic thought behind the plan is to radically alter the social fabric of the inner city through major alterations of the housing market. The Crossroads Centre/East plan proposes that the municipal authorities, together with five real estate companies, form a new company to renovate houses, convert rental apartments to condominiums, demolish and rebuild. One hundred million Swedish kronor are invested in the company – 95 million will come from municipal funds. The proposal in the City Council, led by the Liberal Party, was supported by 49 out of 51 Councillors, including the Social Democrats and the extreme right‐wing Sweden Democrats. The aim is not hidden: welfare recipients should be actively steered away from the city centre and make place for a (imaginary) wealthy middle class. The overall objective of the company is ‘to improve both the physical and socio‐economic status in Landskrona's central and eastern parts’. To understand this urban renewal proposal, we would like to present Landskrona as an example of a watershed in Swedish housing politics that forces us to consider: (1) the nature of gentrification processes in Scandinavia – from gentle to brutal; (2) the shift in viewing affordable housing as a problem, rather than a solution; and (3) the possible introduction of “renoviction” in Sweden.     

ACCOUNTING FOR LOCAL SPATIAL HETEROGENEITIES IN HOUSING MARKET STUDIES

We adopt a novel method to deal with omitted spatial heterogeneities in hedonic house price analysis. A Gaussian variant of the conditional autoregressive (CAR) model is used to study the impact of spatial effects. In a general linear modeling framework, we include zone‐specific random effects that are allowed to interact spatially with neighboring zones. The results demonstrate that this estimator accounts for missing spatial information, producing more reliable results on estimated spatially related coefficients. The CAR model is benchmarked against a fixed effects model. Socioeconomic neighborhood characteristics are found to have only modest impact on spatial variation in housing prices.     

西安城市边缘区空间扩展研究

城市边缘区是位于城市建成区与乡村地域之间受城市辐射深刻影响的过渡地带。文章采用"断裂点"法的基本原理和Matlab软件编制程序识别图像来运算城市边缘区范围,将西安城市边缘区的扩展划分为五个阶段,分析了各个阶段的扩展情况,以及各个阶段的扩展模式,最后对西安2020年城市边缘区范围进行了展望。