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。     

Entry in the presence of dueling options

This paper investigates the influence of industry uncertainty on the decision by established firms to enter a new industry. Specifically, we examine the tension between the option to defer , which discourages entry in the presence of uncertainty, and the option to grow , which may encourage entry in the presence of uncertainty when there are early mover advantages. Empirical analysis on data from a broad array of industries revealed that the effect of uncertainty on entry is not monotonic. Our findings are the first to find support for the nonmonotonic effect of uncertainty that has only recently emerged in theoretical treatments of real options theory, and amplify the importance of considering both the option to defer and the option to grow when contemplating entry. Furthermore, we found evidence that the relationship between uncertainty and entry is moderated by: (a) irreversibility, which influences the value of the option to defer; (b) the total value of growth opportunities; and (c) early mover advantages, which magnify the value of growth options. Copyright © 2003 John Wiley & Sons, Ltd.     

Assessing the Least Squares Monte-Carlo Approach to American Option Valuation

A detailed analysis of the Least Squares Monte-Carlo (LSM) approach to American option valuation suggested in Longstaff and Schwartz (2001) is performed. We compare the specification of the cross-sectional regressions with Laguerre polynomials used in Longstaff and Schwartz (2001) with alternative specifications and show that some of these have numerically better properties. Furthermore, each of these specifications leads to a trade-off between the time used to calculate a price and the precision of that price. Comparing the method-specific trade-offs reveals that a modified specification using ordinary monomials is preferred over the specification based on Laguerre polynomials. Next, we generalize the pricing problem by considering options on multiple assets and we show that the LSM method can be implemented easily for dimensions as high as ten or more. Furthermore, we show that the LSM method is computationally more efficient than existing numerical methods. In particular, when the number of assets is high, say five, Finite Difference methods are infeasible, and we show that our modified LSM method is superior to the Binomial Model.     

房地产投资项目融资风险的灰色模糊评判研究

房地产投资项目的融资风险问题具有灰色性(信息不完全)和模糊(概念不明确)性。考虑到灰色性和模糊性的影响，采用适用性更广的灰色模糊多级综合评判理论，对房地产投资项目融资风险的多级指标体系进行综合评判，可以有效地、全面地和系统地评价房地产投资项目融资风险的大小，为项目融资项目决策提供准确依据。     

浅析房地产开发企业融资方式之变革

中央人民银行出台《关于进一步加强房地产信贷业务管理的通知》，引发了房地产开发企业融资方式的变化，房地产开发企业应对当前融资环境变化，采取切实可行的融资渠道和资金运营方法，今后将成为主流房地产项目融资方式有：房地产信托投资、房地产企业上市、房地产基金、债券融资和住宅抵押贷款证券化等。     

房地产融资渠道分析

由于国家银根收缩，房地产融资难度增大，加上中国房地产金融体系尚未完善，融资渠道狭窄，在一定程度上限制了我国房地产业的发展。房地产业需要新的融资渠道，如信托、基金、债券等取代传统的银行贷款融资模式。针对新的市场现状，各房地产企业必须加强资本运作能力，扩大融资渠道，创新金融产品。     

房地产投资分析浅析

房地产投资分析是房地产投资决策的基础，所涉及的内容较多。章通过对消费、投资地域、资金筹集和投资项目4个方面分析，详细地阐述了影响房地产投资决策的各种主要因素，提出将房地产投资风险降至最低的建议。     

房地产企业开发经营绩效的影响因素研究

在分析房地产开发经营过程中关键价值活动的基础上，深入研究影响房地产开发经营绩效的四大因素：规划设计、施工质量、营销策划和物业管理的基本内容，以及其指标体系。以大最的数据调查为依据，对四大影响因素与房地产开发经营绩效关系模型的进行分析，为房地产开发企业的经营战略提供积极的指导价值。     

模糊决策在房地产建筑方案优选中应用

在房地产开发中建筑方案的决策是一项综合性、专业性、技术性极强的工作。针对以往建筑方案评价的缺陷，归纳总结了，影响方案评价的基本因素，运用模糊决策理论和结合层次分析法，探讨了方案决策的问题，并对实例进行分析。     

房地产三种评估价格的比较分析

简要的阐述了比准价格、收益价格、积算价格三种房地产评估价格的形成机理及理论依据，并从对一种观点的局限性分析出发，综合运用市场供求理论、均衡理论以及短边原则，对不同市场背景下三种估价方法得出的评估价格进行经济比较分析。