Earthquakes,grants, and public expenditure: How municipalities respond to natural disasters

We analyze the response of municipalities to the occurrence of natural disasters in terms of spending behavior, use of upper-tier transfers and recovery, using balance sheet data of about 8,000 Italian municipalities for the period 2000–2015, and the universe of earthquakes events. We find evidence of increasing expenditure for about 12 years after the shocks, with asymmetric responses between earthquake-related and unconditional grants, and heterogeneous flypaper effects across the country. While in northern municipalities expenditure tends to regress to pre-earthquake levels, southern municipalities stick to higher expenditure levels when grants drop. This evidence is coupled with a faster recovery of private income and housing prices in northern municipalities.     

Inter- and intraregional inequality in a spatial economy

In this paper, we develop a three-region economic geography model with workers of heterogeneous skills and mobility rates to consider how first-nature, regional differences impact both inter- and intraregional inequality. In our model, the skill premium within a region summarizes both the degree of intraregional inequality between mobile, skilled workers and immobile, unskilled workers and the interregional inequality through differences in the welfare of unskilled workers across regions. Regions with the highest skill premium have the greatest degree of intraregional inequality and provide the lowest level of welfare to unskilled workers, relative to other regions. We find that the skill premium will be higher in regions with a greater supply of unskilled labor, lower supply of housing, or are more remote. An increase in a region's housing supply or centrality will lower intraregional inequality and raise the welfare of the local, unskilled workforce. However, the magnitude of these changes are declining in the initial number of skilled workers in the region. The model is extended to consider imperfectly elastic housing supply. The larger the price elasticity of housing, the larger the range of values, such that more populated regions will host a disproportionate share of skilled workers, have lower levels of intraregional inequality, and provide higher levels of welfare for unskilled workers.     

SPATIAL DEPENDENCY OF SEGREGATION INDICES

A few researchers have mentioned the scale sensitivity of segregation index, D. In this paper, I discuss analytically and empirically why using large enumeration areal units usually results in low segregation measures, and using small areal units produces relatively high segregation measures. The discussion is also applicable to the multi-group variant of D. A major finding is that if people of the same ethnic groups are positively spatially auto-correlated, increasing the size of areal units of analysis may not lower D initially, because only people of the same group are added. But enlarging the areal units subsequently may include population of other ethnic groups, and therefore could lower D. However, if the boundaries of the larger enumeration units are drawn to include only population of the same group, then D will not change significantly. Both the spatial autocorrelation of ethnic group population and zonal pattern are critical factors in determining the scale sensitivity of D.     

基于手机信令数据的大型足球赛事球迷当日空间行为特征研究

利用手机信令数据,以2014年3月上海申花与杭州绿城、上海上港对上海申鑫两场足球赛为研究对象,分析和归纳了观赛球迷的分布特征、活动特征,并进一步探索了球迷的行为对于球场周边商业体的影响,以此来分析大型赛事球迷的空间行为特征,希望能够对未来的城市相关设施规划起到一定的指导作用。研究表明,球迷的分布涵盖市域、呈现类圈层结构。球迷的出发时间与球赛开始时间相关,大部分球迷的出行目的较为明确。球迷对于球场周边一定距离范围内的商业体有影响,且商业体距离球场越远,影响越弱。最后,对于手机信令数据在大型活动或特定人群特征分析方面的应用提出了一些讨论思考。     

全球—地方视角下西安市软件产业集群的创新效应研究

全球—地方关系为产业创新研究提供了新的视角。本文基于全球（通道）—本地（蜂鸣）关系视角构建了软件产业集群创新效应研究的理论框架。以西安市软件产业集群为例,采用Stata13定量分析不同尺度创新合作的创新效应及其影响因素。研究发现,本地和国际创新合作均对集群创新具有积极的影响,且后者比前者的创新效应更强,说明搭建外部通道对集群创新的必要性;本地与国际创新合作交互对不同规模的软件企业产生的创新效应不同,对小型软件企业存在减法效应,对中型软件企业存在加法效应,对大型软件企业具有乘法效应。建立领先软件企业带动的开放创新系统,是西安市软件产业集群提升创新效应的有效路径。     

Coast–inland mobility and diet in the Danish Mesolithic and Neolithic: evidence from stable isotope values of humans and dogs

Here we present the stable isotope ratios of carbon and nitrogen measured in bone collagen extracted from humans, dogs, herbivores and fish from Mesolithic and Neolithic coastal and inland sites in Denmark. Bones of freshwater fish from several Early Mesolithic lake-side sites have δ¹³C values surprisingly similar to those seen in marine fish. We propose a model, based on δ¹³C and δ¹⁵N, for the correction for both marine and hard water reservoir effect in radiocarbon dates. A strong reliance on aquatic protein is demonstrated for the Mesolithic inhabitants of the region from the middle of the Early Mesolithic onwards. A significant part of the protein in the diets of the dogs and humans from the Middle and Late Mesolithic was of marine origin, even at inland sites. This observation points to a high degree of (seasonal) coast-inland mobility. The isotopic evidence indicates that during the Neolithic small quantities of aquatic foods were still common sources of dietary protein.     

Lobbying after 9/11: Policy Regime Emergence and Interest Group Mobilization

Does the emergence of a new boundary‐spanning policy regime shift the focus of well‐established organized interests, or does it mobilize new ones? In this article, I show that interest groups with a presence in Washington before 9/11 rapidly—but temporarily—shift their attention to the homeland security issues. Established groups' entrenchment in antecedent subsystems appears to buffer against widespread policy disruption and interest upheaval. However, a new set of previously latent groups opportunistically mobilizes after the regime is institutionalized. Newly mobilized groups replace those that retreat back to the regime's antecedent subsystems. Though the policy regime fails to resolve the jurisdictional turf conflicts that triggered its creation, the institutionalization of homeland security generates its own original, distinct government demand for lobbying. Interests that previously had no business in Washington before 9/11 took advantage of the new opportunities the regime offered without supplanting interests established long before the Department of Homeland Security and its congressional committees existed.     

加拿大二线城市华人新移民经济融合研究——“三重玻璃效应”与移民向下层社会流动

论文对加拿大二线城市卡尔加里和爱德蒙顿华人新移民的主要特点、移民动机和融合过程中的主要障碍进行了分析,探讨了新移民在加拿大向下层社会流动的问题。研究显示,新移民在经济融合过程中遭遇多方面的障碍,尤其在就业和语言方面。他们在移民加拿大之后,经历了去技能化和以前的学历和工作经验贬值,促使他们向下层社会流动,而这种状况反过来又阻碍了他们的融合进程。华人新移民的负面经历可以归因于由玻璃大门、玻璃房门和玻璃天花板构成的"三重玻璃效应"。加拿大政府应采纳融合框架政策,除承认移民的流动自由外,还要保证他们能享有与其他加拿大人一样同等的公民权益。     

明清松江府棉布产量与市场销售问题新探

明清时期,松江府是全国的棉纺织业中心。从劳动生产率、劳动时间和劳动力数量等角度考察,明代晚期,松江府棉布产量最多为1575万匹,外销量最多为1305万匹;清代中叶产量最多为3000万匹,外销量在2600万匹左右。明代“松江棉布,衣被天下”,只是市场有效需求不足的结果。清代松江棉布销售区域大大压缩,并不是市场竞争的结果,而是基于其生产能力、运输成本以及与外地经济联系的结果。     

论郑珍文学创作的经学化

文学经学化是郑珍文学创作的基本特征之一,也是郑珍文学创作能够取得巨大成就的基础。本文分析了郑珍文学经学化形成的原因、特点以及表现方式,揭示了经学与文学在郑珍诗文创作中的密切互动关系。