新加坡中央公积金制度变迁因素分析

新加坡中央公积金制度属于强制积累型的社会保障制度。中央公积金制度的变迁是新加坡经济、政治、文化和社会因素综合作用的结果。新加坡中央公积金制度变迁的经验表明社会保障制度安排必须要与本国的国情相适应,要重视家庭在社会保障中的作用,要兼顾一些其他目标。     

基于持续期数据的我国住房抵押贷款违约和提前还款风险分析

本文利用我国住房抵押贷款持续期数据,估计了住房抵押贷款在整个持续期内的提前还款风险和违约风险的概率,同时研究了各影响因素对住房抵押贷款这两类风险的影响方向。目前在国内文献中尚未见诸有关住房抵押持续期的实证研究,本文的研究能够反映抵押贷款风险的内在时间效应,这是其它统计分析方法无法做到的。本文进一步指出它们在银行的抵押贷款证券化和信贷风险管理中的应用前景。     

Modeling trade duration in U.S. Treasury markets

This paper models the trading intensity of the US Treasury bond market, which has a unique expandable limit order book that distinguishes it from other asset markets. The results indicate that trade duration exhibits significant clustering and that the time taken to expand the tradable volume, known as ‘workup’, significantly decreases the time between the initiation of consecutive trades. Finally, we find that trade duration falls in the presence of scheduled news releases, but the size of the surprise in that news release is not found to be important.     

Analyzing yield, duration and convexity of mortgage loans under prepayment and default risks

In this article, we construct a general model, which considers the borrower’s financial and non-financial termination behavior, to derive the closed-form formula of the mortgage value for analyzing the yield, duration and convexity of the risky mortgage. Since the risks of prepayment and default are reasonably expounded in our model, our formulae are more appropriate than traditional mortgage formulae. We also analyze the effects of the prepayment penalty and partial prepayment on the yield, duration and convexity of a mortgage, and provide lenders with an upper-bound for the mortgage default insurance rate. Our model provides portfolio managers a useful framework to more appropriately appraise the mortgage and more effectively hedge their mortgage holdings. From the results of sensitivity analyses, we find that higher interest-rate, prepayment and default risks will increase the mortgage yield and reduce the duration and convexity of the mortgage.     

The impact of positive property tax differentials on the timing of development

To date, few empirical studies have focused on the location decision by residential developers in response to changes in the property tax. Based on a dynamic time-to-development model by Turnbull, this paper finds, using 17 years of parcel level data from Saint Louis County, Missouri, that higher than average tax rates increase the time-to-development for vacant parcels by between 4 and 11%, all else equal. Additionally this paper finds that the tax differential effect is cumulative, resulting in about a 20% increase in the time-to-development for the parcel facing the average number of years with a higher than average rate. These results support the analytical results by both Turnbull [Turnbull, G.K., 1988. The effects of local taxes and public services on residential development patterns. Journal of Regional Science, 28 (4), 541–562.] and McMillen [McMillen, D.P., 1990. The timing and duration of development tax rate increases. Journal of Urban Economics, 28, 1–18.] that the property tax can distort residential capital markets leading to inefficient urban growth, or sprawl.     

The Role of Local Agglomeration Economies and Regional Characteristics in Attracting FDI: Italian Evidence

The objective of this paper is to test for the importance of local agglomeration externalities in determining inward foreign direct investment (FDI) intensity, viewed as a measure of regional attractiveness to FDI. The links between the degree of FDI inflow penetration into Italy and its determinants at the regional level are examined using alternative fixed effects panel data model specifications, also extended to include spatial effects. It is found that sectoral and regional specificities are relevant in attracting inward FDI into Italy and the different effects of intra‐sector and inter‐sector spillovers can be distinguished. There is also evidence that the importance of agglomeration spillovers connected to the geographical distance varies across regions, indicating both substitution and complementarity effects from FDI inflows into neighboring regions.     

上市公司独立董事的声誉机制研究

独立董事的独立性依赖于其声誉,而其声誉的高低,则依赖于其个人财产的多寡以及独立董事津贴在其总收入中所占的比例.本文建立了一个独立董事声誉机制模型,依据独立董事对薪酬的依赖程度的观察,构建了选聘独立董事的声誉机制;并且认为由委员会提名,股东大会选举产生的独立董事的独立性较直接由董事会提名时要强.     

外贸依存度测算方法的改进及对中国外贸依存度的重新估计

本文探讨了外贸依存度测算方法的改进问题，提出了以经济总活动代替传统公式中的GDP并考虑服务贸易的影响、运用加权平均及修正系数测算外贸依存度的方法，并以此新方法对中国的外贸依存度进行了重新估计。根据新方法测算的中国外贸依存度表明，中国外贸依存度是适中的，这为有关部门制定相关政策提供了依据。     

对中国外贸依存度的分析与思考

中国加入WTO后，融入经济全球化进程的步伐加快，我国的外贸依存度正处于一个迅速上升的时期。较高的外贸依存度给我国经济带来较大的不确定性，有必要采取适当措施缓解外贸依存度高给中国经济带来的负面影响。