新疆城乡居民收入与支出关系的实证分析——兼论影响城乡居民收入差距的原因

非均衡的发展战略使得我国城乡收入分配机制发生了根本性的变化;文章通过对新疆城乡居民收入与支出关系的实证分析,得出新疆城乡居民收入与支出在呈线性关系的同时,也存在着差距不断扩大的趋势,这种趋势阻碍了农村居民消费性支出的增长;文章在最后对引起新疆城乡居民收入差距不断扩大的原因进行分析。     

Information and Communication Technologies and their Role in Urban Regeneration

The idea that information and communication technologies (ICT) can provide a means to regenerate deprived urban areas is still a relatively new concept in the United Kingdom. There is in fact little empirical evidence to demonstrate what actually happens when ICT projects are designed with regeneration in mind. A case study of ICT regeneration is examined here, one funded through the Single Regeneration Budget and operational in an urban area in the North East of England. What became apparent during this study is how the changing policy environment meant other types of ICT initiative came on-stream before the project could firmly establish a position within its community. The authors challenge the logic of this form of activity and demonstrate that even when there seems to be a need to support ICT-led development the sustainability of such projects is highly problematic.     

Urban agriculture promotes sustainable livelihoods in Cape Town

Urban agriculture has long been endorsed as a means to promote food security and economic wellbeing in African cities. However, the South African context presents mixed results. In order to establish the contributions of urban agriculture to sustainable livelihoods, the sustainable livelihoods framework is applied to a case study on cultivators from Cape Town’s Cape Flats. This study contributes to the empirical literature on urban agriculture by providing a deeper understanding of the benefits cultivators themselves attribute to urban agriculture. The key finding is that cultivators use urban agriculture in highly complex ways to build sustainable livelihoods. NGOs are central to this process. Distrust, crime and a lack of resources are, however, limiting factors. The paper concludes with policy recommendations to support pro-poor urban agriculture in African urban centres.     

Poverty, Place or Race: Causes of the Retail Gap in Smaller U.S. Cities

In this study we explore the possibility that any or all of three dimensions of the U.S. inner city, central location, relatively low income, and a relatively high percentage of minority residents, correlate with a relative lack of neighborhood retail services, the so-called retail gap. Our empirical analysis is based on zip code level data for 39 U.S. cities with populations from 50 to 225 thousand people. After specifying an empirical model based on hypotheses drawn from the urban economics, urban studies, and urban development literature, we test access to retail services using both geographical density and per capita retail measures. While several results from this study are worthy of discussion, our primary empirical finding is that neighborhoods with high percentages of African-Americans are systematically under-served by retail, all else equal, while Latino, low income, or otherwise centrally located neighborhoods are not. We then test a selection of product categories for retail density, finding some differing results by product category but verifying our more general conclusions for most products. Finally, we find that grocery stores have significantly smaller scale in African-American communities, a finding that provides partial support for the urban “food desert” hypothesis. These findings suggest that the inner city retail gap may be more of a racial than geographic issue, and that increased emphasis on racial composition is warranted in the retail development policies applied to smaller U.S. cities.     

Intrahousehold and Interhousehold Child Nutrition Inequality in Malawi

This paper investigates whether child nutrition inequalities are attributable to differences between households or differences within households in Malawi. Child nutrition is measured using height‐for‐age z‐scores. The empirical analysis uses the 2006 Multiple Indicator Cluster Survey data. We find evidence of within household nutritional differences along gender, age and birth order lines in Malawi. The results for rural and urban areas as well as religious groups show that nutrition inequalities largely stem from differences within households. Both intrahousehold and interhousehold nutrition inequalities are unexplained by observable factors.     

Fiscal spending and air pollution in Chinese cities: Identifying composition and technique effects

Fiscal spending has both direct and indirect impact on the environment. Using city-level data in China, this paper investigates if education spending affects air pollution through human capital accumulation, known as the composition effect, and if R&D spending affects air pollution through clean-technology adoption, known as the technique effect. Contrasting theoretical predictions and previous empirical evidence, we find both effects of interest to be trivial in urban China. Composition effect appears to be slightly stronger relative to technique effect, while sub-sample analyses show some regional heterogeneities. The results remain robust when we switch between pollution measurements, examine only the regional central cities, instrument endogenous covariates, and adopt the spatial settings. We further discuss potential channel-blocking mechanisms that lead to weak estimates.     

Self-employment,earnings, and mobility in Peninsular Malaysia

This study tests several hypotheses about self-employment in LDCs that derive from the common view of the self-employed as part of the informal sector of a dualistic labor market. The empirical findings based upon Malaysian survey data reject the hypotheses that the self-employed earn less than wage employees, ceteris paribus, and that the self-employed in urban areas are typically recent migrants. An alternative interpretation of the determinants of self-employment is suggested based upon these findings.     

Expenditure Inequality in Indonesia, 2008–2010: A Spatial Decomposition Analysis and the Role of Education

Based on the 2008–2010 Susenas panel data, this study examines expenditure inequality from spatial perspectives in Indonesia, using three decomposition methods: (i) a conventional Theil index decomposition; (ii) an alternative Theil index decomposition proposed by Elbers et al. (2008); and (iii) the Blinder?Oaxaca decomposition. Our results show that overall inequality in per capita expenditure increases between 2008 and 2010, which coincides with a rising trend in the official Gini coefficient. The contribution of inequality within urban and rural areas to total inequality is larger than that of inequality between urban and rural areas. Looking within urban and rural areas, urban inequality is significantly higher than rural inequality. Java‐Bali in particular records very high urban inequality. Overall, urban inequality increases, urban–rural inequality remains stable, rural inequality decreases, and inequality at the national level increases. Although urban–rural inequality has a relatively low share in overall inequality, the share is not small enough to ignore its impact. Furthermore, when using the alternative decomposition method, the contribution of urban–rural inequality increases substantially. The present study also found that educational differences appear to have played an important role in expenditure inequality within urban areas and between urban and rural areas.     

分税制改革、城市偏向与中国农业增长

分税制改革因导致中央和地方政府之间财权和事权的不匹配而增加了地方政府的财政压力,从而深刻地改变着地方政府的行为模式。当农业税费全归地方财政收入,农业对经济增长的贡献不断下降而经济增长又成为地方官员政治晋升的主要指标时,面临财政压力的理性地方政府会强化其城市偏向程度,从而损害农业增长。本文运用1978至2009年中国省级面板数据进行的实证分析表明:分税制下的地方财政压力对农业增长特别是粮食增长产生消极影响;非本级财政收入因缓解地方财政压力而有助于农业增长;地方政府对预算外资金的依赖则不利于农业增长。历史和经验证据支持了分税制改革强化地方政府城市偏向的观点。     

加快温台区域块状经济向产业集群转型研究

块状经济是指一定区域范围内形成的一种产业集中、专业化极强,又具有明显地方特色的区域性产业群体的经济组织形式。温州、台州市以块状经济生成、发展和转型升级,支撑和推动乡村小工业的集聚,推进城市边缘新兴产业群落的快速崛起,被著称为"温台模式"。本文分析了温台区域块状经济发展现状、存在问题,认为向产业集群转型升级是温台区域经济发展的必然选择,并为其提出了对策措施。     

Competition for the use of public open space in low-income urban areas: the economic potential of urban gardening in Khayelitsha,Cape Town

Urban agriculture is a contested issue in the larger South African debate on urban poverty alleviation. This paper investigates the economic viability of urban agriculture and informs the debate on the optimal use of open space in Khayelitsha. It compares the economic performance of the Scaga community garden in the low-income township Khayelitsha, predicted in a 1998 study by Fermont et al., with empirical results of a similar study by Fleming in 2003. It concludes that urban agriculture in Khayelitsha is potentially economically viable, subject to certain conditions being satisfied. However, as a land use, urban agriculture competes with housing, ecological corridors, the stormwater management system and nature areas and reserves.     

财政分权、金融分权与科技创新

央地间分权改革是我国调节不同层级政府间权责关系的一项制度探索,对于强化地方政府创新职能具有重要意义。文章基于我国城市面板数据,实证分析了财政与金融分权制度改革对科技创新的影响。研究发现,财政分权与金融分权均能有效促进城市创新,并且这种影响具有显著的时空异质性特征。动态分析发现,随着城市创新水平的提升,两种分权制度对城市创新的影响也存在着差异化的动态变化轨迹。此外,实证分析结果也表明,我国财政分权制度改革与金融分权制度改革的匹配性较差,两类分权制度缺乏有效协同。因此,在有序推动分权制度改革的同时,要提高财政与金融两个领域分权制度的匹配性,最大化分权制度改革对创新型经济发展的促进作用。     

持久收入理论与我国城乡居民消费——基于省际面板数据的检验

本文运用基于持久收入和暂时收入的两种分解方法的省际面板模型检验了持久收入理论的三个假设。结果发现,我国城镇和农村居民消费与其持久收入均显著相关。我国城镇居民消费与其暂时收入显著相关;安徽、黑龙江、吉林、陕西、甘肃、青海、云南和海南等省农村居民的暂时收入的边际消费倾向等于零,而其他省份的不等于零。"λ假说"检验表明,我国城镇和农村居民消费对当期收入都是过度敏感的,导致PIH的局限性。选择误差修正项的绝对值表征不确定性和远期的流动性约束对城镇(或农村)居民消费的影响,计量结果显示,不确定性和远期的流动性约束对城镇(或农村)居民消费产生了明显的负面影响。农村居民的预防性储蓄动机强度大于城镇居民。     

Income inequality and access to housing: Evidence from China

Economic theory suggests that income inequality predicts housing price and housing affordability for low-income households. Employing Chinese urban household survey data, this paper examines empirically the relationship between income inequality and access to housing for urban low-income households. The empirical results demonstrate that higher income inequality within cities is significantly related to a higher housing cost burden, a smaller per capita living space, and lower housing quality for low-income households. Further studies demonstrate that the negative impacts of income inequality could be moderated by product differentiation in housing markets, as a higher degree of differentiation in the size of housing units corresponds to a smaller effect of income inequality on housing affordability.     

我国高速铁路对城市贸易发展的影响分析——基于对外开放程度不同城市的实证研究

高速铁路凭借其特有的技术经济特性成为影响城市贸易发展的重要驱动力,但其对城市进出口贸易有何影响及如何影响需进一步探索.通过对三个开放等级度56个城市的2006-2018年面板数据,运用双重差分模型(DID)进行实证研究,分析出高铁对城市贸易发展的影响情况.结论表明:高铁对开放程度较低城市的贸易发展有显著的促进作用;高铁对总体城市的贸易发展的影响并不显著;高铁主要是通过促进城市进口贸易的发展来提升城市贸易的整体水平.     

中国城镇居民储蓄率的影响因素:1997～2008——基于省级动态面板数据的实证研究

本文在生命周期-持久收入模型与预防性储蓄理论的框架内,使用1997～2008年的省级面板数据,通过动态系统广义矩的估计方法对中国城镇居民储蓄率的影响因素进行了实证研究。研究显示:持久收入的增加和储蓄惯性显著提高了城镇居民的储蓄率,并且以上两方面因素可以对1997～2008年间城镇居民储蓄率增幅中的大部分进行解释;但与传统的LC-PIH模型不同,少儿抚养比与中国城镇居民储蓄率之间存在着显著的正相关关系。此外,社会保障事业的发展通过降低不确定性,从而显著降低了城镇居民储蓄率,而就业的市场化程度却产生了与之相反的影响。但公共支出的结构、通货膨胀率以及实际利率没有对城镇居民储蓄率产生显著的影响。     

黑龙江省农村劳动力转移的动因、制约因素与发展趋势

采用实证分析方法讨论了黑龙江省农村劳动力转移的动因、制约因素与发展趋势,认为在未来,我国农村劳动力转移的总趋势必然更加顺畅,将实现从农业向非农产业转移,从农村向城市转移,随着现代农业分工水平的进一步提高,还会出现农业和农村内部的劳动力转移,但也面临着农业、农村空壳化现象,威胁粮食安全。受国际金融危机影响,作为劳务输出大省的黑龙江,农民转移就业也受到影响。但挑战与机遇同在。     

我国高速铁路对城市贸易发展的影响分析 ——基于对外开放程度不同城市的实证

高速铁路凭借其特有的技术经济特性成为影响城市贸易发展的重要驱动力,但其对城市进出口贸易有何影响及如何影响需进一步探索。通过对三个开放等级度56个城市的2006-2018年面板数据,运用双重差分模型(DID)进行实证研究,分析出高铁对城市贸易发展的影响情况。结论表明：高铁对开放程度较低城市的贸易发展有显著的促进作用;高铁对总体城市的贸易发展的影响并不显著;高铁主要是通过促进城市进口贸易的发展来提升城市贸易的整体水平。     

Hawkers in South Africa's small urban centres: Planning and policy

The development of strategies for the ‘appropriate management’ of urban growth applies with equal force to small and to large urban centres. In this paper one key aspect in the evolution of appropriate management strategies in South Africa's smaller urban centres is addressed, namely the policy attitudes and practices towards hawkers. Against a background review of the international experience of changing attitudes towards street traders, empirical material is presented on local policies and planning regarding hawkers in a cross‐section of South Africa's smaller urban centres. Although the overall picture is dominated by the reluctance of urban authorities to innovate accommoda‐tionist planning, some interesting exceptions are noted.     

我国城乡居民储蓄的增长效应研究：基于OLG模型

文章在OLG模型框架下研究储蓄与经济增长的均衡关系,结果表明,储蓄对经济增长的影响存在跨期效应,上一期的储蓄对当期的经济增长产生正向影响。在实证层面,采用省级面板数据发现,1979—2011年我国的居民储蓄能显著解释中国经济增长原因,并且呈现出东部、中部、西部基本一致的特征。文章研究表明,过去30多年我国城乡居民的节俭行为实际上为中国经济增长发挥了重要作用。