成品油终端市场顾客需求模型的构建

在越来越激烈的成品油终端市场竞争中，只有及时了解并满足顾客需求，成品油销售企业才能获得生存与发展。从成品油最终顾客出发，分析顾客需求之相关因素及重要性程度，综合运用层次分析法和矩阵分析法，建立成品油终端市场顾客需求模型，从而为成品油销售企业认识和满足顾客需求提供了客观科学的依据。     

The Global Determinants of Direct Office Real Estate Returns

We investigate the determinants of direct office real estate returns by analyzing rents, capital appraisals, and total returns. A recently compiled global database of major cities in Asia, Europe, and the United States provides a unique opportunity to give a macro-view on the effects of economic growth and supply and demand factors on nominal real estate returns. The global database provides quarterly observations from 1986 to 1999. To address the smoothness problem of appraisal-based price data and regulated rents, we employ the Generalized Method of Moments to estimate a dynamic panel-data model. The model allows us to combine the cross-sectional and time-series dimension in our quarterly data. We find that gross domestic product, inflation, unemployment, vacancy rate, and the available stock all have an effect on real estate returns.     

Impact of Divergent Consumer Confidence on Option Prices

This paper investigates the impact of divergent consumer confidence on option prices. To model this, we assume that consumers disagree on the expected growth rate of aggregate consumption. With other conditions unchanged in the discrete-time Black–Scholes option-pricing model, we show that the representative consumer will have declining relative risk aversion instead of the assumed constant relative risk aversion. In this case all options will be underpriced by the Black–Scholes model under the assumption of bivariate lognormality. This revised version was published online in June 2006 with corrections to the Cover Date.     

Three New Real Estate Price Indices for Geneva,Switzerland

This paper develops constant-quality price indices for three categories of real estate-apartment buildings, vacant land, and condominiums—for the city of Geneva, Switzerland. We use both the hedonic and repeat sales models to estimate the price level and, in turn, the rate of price change. The general pattern of each series suggests that real estate prices in Geneva were fairly stable throughout the 1970s, increased sharply during the 1980s, but gave back some of these gains in the early 1990s. Interestingly, the sharp rise in prices in the second half of the 1980s is very similar to that found in some regions of the United States. We also consider the problem, implicit in the repeat sales method, of revisions in previously estimated price indices as additional data become available in later years.     

Subordinated Market Index Models: A Comparison

The paper compares various processes subordinated to the Wiener process tomodel the leptokurtic characteristics of index returns. Empirical analysisis performed on the Dow Jones and Nikkei 225 indexes. A good model to capturethe typical tail behaviour of these indexes turns out to be a long Studentt distributed one.     

绿色GDP核算研究的误区及其澄清

我国在绿色GDP核算研究中存在着将实际环保费用作为“重复计算因素”从现行GDP中扣除的误区。无论从核算技术的角度上,还是从经济模型的推导上,都证明在绿色GDP核算中不应扣除实际的环保费用,而应扣除的是“潜在的”环保费用。     

我国证券投资基金投资风格实证研究

本文利用我国公开披露的证券投资基金收益率数据,对关于投资风格分析的夏普模型在我国的适用性进行验证分析,得出该模型对我国证券投资基金进行投资风格分析是有效的,是观察、判断管理人投资风格及其变化的一个良好工具的结论,并概括出我国证券投资基金的投资风格特点。     

中国金融市场分割问题探源

银行的不良贷款问题得到了学术界的广泛关注,而金融体系中另一个潜在的缺陷,资本的低效率使用问题却没有引起足够的重视。金融理论告诉我们分割的金融市场是阻碍资本自由流动的原因, 本文的目的在于对我国金融市场分割的原因进行探讨。     

由海外应收账款危机提出的优化我国信用管理模式的立体模型

2004年中国进出口贸易额历史性地突破一万亿美元大关,成为继美国、德国之后的世界第三大贸易大国。但是,反倾销和反补贴等对外贸易壁垒之后,又一问题凸现出来。据权威推算,迄今我国至少有1000亿美元的海外应收账款无法收回,并且这个数字还将继续增加。对此,理论界众说纷纭,从不同角度为解决这一问题出计献策,但一直没有一个整体的框架成型。为了系统而又清晰地解决我国海外应收账款“黑洞”,优化信用管理模式,笔者提出了一种模型。