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31.
地方债为公共品融资:条件与效应分析   总被引:1,自引:0,他引:1  
地方债的发行期与偿还期往往不一致,与资本性地方公共品不一致的建设期和受益期相对应,再加上法律明确赋予的举债权,地方债因此而成为世界各国经常采用的资本性地方公共品的融资方式。利用地方债为地方公共品融资,可以实现降低对政府收入依赖程度的预算效应、过度刺激地方政府利用公债投资的负激励效应以及影响居民迁入与移出的迁移效应。  相似文献   
32.
制度、人力资本与乡村劳动力迁移   总被引:1,自引:0,他引:1  
本文构建制度框架下政府与乡村迁移者博弈模型说明政府政策选择机制形成与迁移者决策过程。在不同经济发展阶段,经济发展目标决定迁移者迁移策略,城市发展能否从迁移中获得利益决定政府对迁移的管制程度,农业发展能否为迁移提供支持决定迁移者的迁移决策。迁移者的人力资本水平是影响政府策略与迁移者策略选择的关键因素。改善乡村劳动力人力资本积累条件有助于加速迁移进程,减少城市劳动力市场对迁移者的歧视,提高城市化质量。  相似文献   
33.
农民工选择非永久迁移是在约束条件下的一种理性选择,而这种非永久迁移却给经济增长带来许多负面影响,促进农民工定居城市已成为急需解决的问题。文章通过分析在促进农民工定居城市过程中的利益格局,从协调城乡间利益矛盾,减少制度变迁摩擦成本的角度,提出了促进农民工定居城市的路径选择。  相似文献   
34.
    
Raising the bar (5). Spatial Economic Analysis. This editorial summarizes and comments on the papers published in this issue 12(1) so as to raise the bar in applied spatial economic research and highlight new trends. The first paper examines the impact of the level of education on the decision to migrate and finds that it is approximately twice as large if both variables are modelled simultaneously. The second paper is one of the first papers to introduce a spatial component to models of international environmental agreements and to develop an exciting overlap with New Economic Geography. The third paper provides a tool, applied to Beijing, with which urban economic planners can investigate the role of variation and selection mechanisms in cluster development and identify possible paths of growth. The fourth paper contributes to the existing literature on retail geography by examining the role of consumption possibilities as an urban amenity. The fifth paper develops a Bayesian estimator of a linear regression model with spatial lags among the dependent variable, the explanatory variables and the disturbances. Finally, the sixth paper develops a semi-parametric generalized method of moments (GMM) estimator for a spatial autoregressive model with space-varying coefficients of the explanatory variables and a spatial autoregressive coefficient common to all units.  相似文献   
35.
王飞  张蕊  刘子剑  王鹤  张鑫  洪梅 《价值工程》2012,31(24):18-21
通过室内土柱实验模拟氮素在不同沉积物的潜流带中迁移转化途径,选取粗砂、细砂、粉砂三种介质,以浓度为65.5mg/L的硝酸钾溶液为原水,研究硝态氮在不同沉积物的潜流带中的环境行为;再通过补充碳源,研究碳源对氮的迁移转化过程的影响。实验结果表明,在不同的沉积物介质中,氮的迁移转化不同,主要受介质孔隙度和介质中有机质的制约。由于粉砂介质中孔隙度较小,有利于微生物的附着,且有机质含量较多,反硝化作用和异化还原作用强烈,所以硝酸盐氮下降的最多,而在粗砂介质中孔隙度相对较大,不利于微生物附着,且有机质含量相对较低,反硝化作用和异化还原作用较弱,硝酸盐氮下降的较少。而添加碳源后,反硝化作用和异化还原作用增强,三根柱子中的硝酸盐氮都降到很低的值,说明碳源对潜流带中硝态氮的去除起着重要的作用。  相似文献   
36.
    
The present article follows two objectives. First, to apply a recently developed spatial interaction model and discuss its power in explaining social developments. Second, to obtain information on internal migration's determinants in Russia by taking into account that its eastern and western regions differ in many respects. Two alternative panel specifications are considered, labelled “spatial interaction specification with exogenous spatial lags” and “gravity-type specification with network effects”. While both specifications are designed to capture the impacts of neighbouring regions in migration dynamics, they differ with respect to the implementation of fixed effects. It is argued that neighbourhood impacts manifest themselves either as spillover effects, which amplify a variable's impact, or competition effects, which attenuate them. The results show that variables indeed differ from each other in these respects, demonstrating how migration patterns are subject to events beyond the directly involved regions, and that these are furthermore influenced by the distances between regions. In addition, the results provide further evidence that migration determinants differ for Eastern and Western Russia.  相似文献   
37.
    
International migration, seen as a powerful force of truly global character that is shaping today's socio‐economic reality, is a highly controversial and politicised issue. This paper explores its ramifications in the context of a growing backlash against immigration across the rich world. Specifically, it argues that the free flow of people – like the free movement of goods and capital – is beneficial to developed and developing economies alike and, in doing so, shows how migration produces win–win outcomes. Thus the study, while admitting that inflows of foreign‐born workers pose challenges and entail trade‐offs, makes a case for the liberalisation of immigration policies. The paper deepens our understanding of the issues at hand and constitutes a voice in favour of liberal‐policy choices.  相似文献   
38.
    
In relative performance evaluation systems, appraisers may choose to adopt stricter or laxer evaluation criteria. When laxer (vs. stricter) criteria are used, higher absolute performance evaluations become easier (vs. harder) to achieve. Thus, each appraisee's absolute performance feedback and the mean of the distribution of absolute performance feedback are shifted upward (vs. downward). Yet, relative performance remains constant. When evaluation outcomes depend solely on relative performance, can the adoption of laxer (vs. stricter) criteria—leading to higher absolute performance feedback but no change in relative performance—influence appraisees’ satisfaction with performance? Despite the ubiquity of such systems in organizations, research has not addressed this question. This article points to an important gap between practitioners’ beliefs and research findings. We show that while most appraisers believe that higher absolute performance feedback will automatically result in more satisfaction with performance, the opposite may also happen. Specifically, we find that appraisees with a stronger (vs. weaker) chronic or contextual need to engage in social comparison are more satisfied with lower (vs. higher) absolute performance feedback. Overall, we demonstrate why and how feedback interventions in relative performance evaluation systems may backfire, and suggest a set of practical guidelines for maximizing appraisees’ satisfaction with performance in such systems. © 2015 Wiley Periodicals, Inc.  相似文献   
39.
There is a good consensus on the strategic value of service-oriented architecture (SOA) as a way of structuring systems, and a common trend is to migrate legacy applications that use outdated technologies and architectures to SOA. We study the effects in the resulting Web Service interfaces of applying two traditional migration approaches combined with common ways of building services, namely, direct migration with code-first and indirect migration with contract-first. The migrated system was a 35-year-old COBOL system of a government agency that serves several millions of users. In addition, we provide a deep explanation of the trade-offs involved in following either combinations. Results confirm that the ‘fast and cheap’ approach to move into SOA, which is commonplace in the industry, may deliver poor service interfaces, and interface quality is also subject to the tools supporting the migration process.  相似文献   
40.
劳动力成本上涨成为中国劳动密集型企业普遍关注的问题,它也是推动第三产业转型的重要原因.酒店作为典型的劳动密集型企业,员工流动问题一直备受关注,但是从人力资本角度的研究很少.本文运用人力资本投资理论对珠海向澳门的劳动力迁移现象进行了实证分析,发现基础工资差距是导致酒店业劳动者个体迁移的主要原因,而两地员工福利水平的差距及地理临近性进一步增加了酒店业个体劳动者迁移的愿望.文章最后建议,珠海酒店企业可以采取增加员工收入、完善员工福利保障及创新盈利模式的措施来解决员工高流动性的问题.  相似文献   
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