地方债为公共品融资:条件与效应分析

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。     

A Semiparametric Method for Valuing Residential Locations: Application to Automated Valuation

This paper is motivated by automated valuation systems, which would benefit from an ability to estimate spatial variation in location value. It develops theory for the local regression model (LRM), a semiparametric approach to estimating a location value surface. There are two parts to the LRM: (1) an ordinary least square (OLS) model to hold constant for interior square footage, land area, bathrooms, and other structural characteristics; and (2) a non-parametric smoother (local polynomial regression, LPR) which calculates location value as a function of latitude and longitude. Several methods are used to consistently estimate both parts of the model. The LRM was fit to geocoded hedonic sales data for six towns in the suburbs of Boston, MA. The estimates yield substantial, significant and plausible spatial patterns in location values. Using the LRM as an exploratory tool, local peaks and valleys in location value identified by the model are close to points identified by the tax assessor, and they are shown to add to the explanatory power of an OLS model. Out-of-sample MSE shows that the LRM with a first-degree polynomial (local linear smoothing) is somewhat better than polynomials of degree zero or degree two. Future applications might use degree zero (the well-known NW estimator) because this is available in popular commercial software. The optimized LRM reduces MSE from the OLS model by between 5 percent and 11 percent while adding information on statistically significant variations in location value.     

Locally Greater Vulnerability to Background Risk

Willingness to take on risk is influenced by the presence of fair and unfair background risks for decision makers who are risk vulnerable as defined by Gollier and Pratt [1996], for these decision makers are more risk averse when they possess such an uninsurable background risk. We present an alternative derivation of the index of local vulnerability based on Diamond and Stiglitz [1974] compensated increases in risk, such that risk aversion increases with the introduction of any small fair background risk if and only if the index of local vulnerability is positive. We establish that the increase in risk aversion is greater for those who are more vulnerable as measured by the index of local vulnerability.     

不同类型增值税的税收中性分析

我国采用生产型增值税,增值税的税收中性特征没有充分体现出来,对于宏观经济运行和微观主体的行为都有一定的干扰。从税收中性的角度分析,消费型增值税的超额税收负担最小,最符合增值税的中性特征,是我国增值税改革的方向。     

中国股票市场财富效应的再检验——以城镇居民为例

根据消费的生命周期--持久收入假说,股票市场的财富增加对居民消费有促进的作用,这就是所谓的"财富效应".国外的许多研究证实了股票市场财富效应的存在,而国内的一些研究则不认为我国股票市场存在财富效应.针对这种状况,文章以我国城镇居民为例,对我国股票市场的财富效应进行了再检验,结果发现,即使针对城镇居民这一拥有股票数量相对较多的群体而言,仍然没有显示出股票市场的财富效应.对这个结果,文章进行了初步的解释并提出有关的政策建议.     

中国股票市场财富效应的再检验——以城镇居民为例

根据消费的生命周期——持久收入假说,股票市场的财富增加对居民消费有促进的作用,这就是所谓的“财富效应”。国外的许多研究证实了股票市场财富效应的存在,而国内的一些研究则不认为我国股票市场存在财富效应。针对这种状况,文章以我国城镇居民为例,对我国股票市场的财富效应进行了再检验,结果发现．即使针对城镇居民这一拥有股票数量相对较多的群体而言,仍然没有显示出股票市场的财富效应。对这个结果,文章进行了初步的解释并提出有关的政策建议。     

Testing for Vertical Fiscal Externalities

The purpose of this paper is to design a test of whether the vertical external effects associated with tax base sharing among local and regional governments have become internalized via the intergovernmental transfer system. Such tests are important in the sense that the income tax rates chosen by different levels of government will generally be correlated, even if the resource allocation is optimal from society's point of view. By using panel data for the Swedish local and regional public sectors, the results imply that an increase in the regional income tax rate induces the municipalities in the region to decrease their income tax rates. In addition, we are able to reject the null hypothesis that the vertical external effects have become internalized.     

采油厂能耗质量监督与管理

根据油田能源计量和监督管理的实际，在采油厂范围内全面实施了以建章立制网络化管理为主线的能耗质量监督与管理。主要实施了随机监督和定期监督，以及与之配套的奖罚制度相结合的管理办法，以提高监督水平为目的的技术业务培训和加强现场能耗质量监督运行过程监督，完善配备能耗监测仪器等项措施。     

当代美国住宅的思考

美国2000年新建住宅投资4251亿美元，占固定资产投资的21．3％；住宅直接消费为9588亿美元，占GDP的9．71％；年存量住宅为1．16亿套(户)，空置率为5．9％。购买新房一般中值价为80美元／ft^2，一套住宅(2000ft^2)中值房价为16万美元；按中值计算贷款购房的支出与收入比为1：4．7；在美国仍有3500万户居民租用住宅。     

基于FDI的产业集群发展模式与动力机制--以浙江嘉善木业集群为例

集群战略日益广泛地被运用于招商引资 ,旨在增强地区对外资的吸引力与粘合力 ,从而促进地方持续发展。浙江嘉善木业集群的经验表明 ,外资能否持续推动地方集群的发展 ,除了受地方制度成本及集群外部效应的影响之外 ,还更取决于外资企业与民营企业之间的融合方式与程度。在学习能力和企业家精神较强的地区 ,民营企业在外资企业的示范带动和竞争压力下 ,能够通过持续的知识积累和自主创新 ,增强并突出自身优势。届时 ,外资企业不但能够获得纯经济外部性 ,还能够获得知识与信息的外部性 ,并受此驱动与地方资本有效融合。