R&D项目投资评估的实物期权方法初探

本文分析了传统的NPV法在R&D项目投资评估中的缺陷,指出R&D项目投资本质上所具有的期权特性。在此基础上引入了实物期权方法,包括Black-Scholes期权定价方法和Geske期权定价模型。     

实物期权理论在风险投资决策中的应用探析

鉴于风险投资决策传统方法的局限性及风险投资的期权特性,根据实物期权理论,比较分析NPV法与实物期权定价法对计算风险投资项目价值的差异,可看出在风险投资中引入实物期权的思想,对风险投资者做出正确的投资决策及风险资本的保值增值有着重大的指导意义。     

资本预算中管理期权理念及其定价分析

传统的资本预算方法认为投资机会一旦出现,就应该立即进行投资,事实上企业不仅可以决定是否投资于某项目,而且可以决定何时从事该项目的投资,我们称之为管理期权。本文利用二叉树和复制技术对隐含在投资项目中的管理期权进行了定价,并指出"二叉树法"低估了管理期权的价值。     

投资项目互斥方案决策分析方法评价

关于互斥项目投资决策的评价标准，主要有以下两种观点：一种只注重投资的效果，其标准是净现值大者为优，前提是资金无限量，理由是企业的经营目标是净收益，而不是收益率；另一种是只注重投资的效率，其标准是收益率大者为优，理由是在资源稀缺论。与此相对应的评价方法主要是净现值法和内部报酬率法。但是两者对同一互斥项目的方案评比结果却会截然相反，如何在投资效果和投资效率之间进行权衡，如何进行正确项目决策，这正是所要研究的主要问题。     

期权理论在IT项目风险管理中的应用

本文简要介绍了金融期权和IT项目期权的含义,以及期权定价模型,详细分析了IT项目期权的类型和IT项目期权的套期保值,其中对比分析了NPV方法和期权方法(B-S模型)在评估IT项目中的差异。     

The business case of a network that serves both public safety and commercial subscribers

Deploying a single nationwide broadband wireless network to serve all public safety users would have great advantages over the existing fragmented public safety systems. A nationwide system could be created to serve both public safety and commercial subscribers, which would allow a provider to exploit important economies but force it to meet the more costly requirements of public safety. This paper analyzes the viability of a public-private partnership that serves public safety and commercial subscribers from a for-profit provider's perspective. A model is presented that estimates the net present value (NPV) of a wireless network by calculating costs based on the number of cell sites required and revenue based on the projected number of subscribers acquired. The model is applied to both a network that serves only commercial subscribers on 10 MHz of 700 MHz spectrum and a public-private partnership that serves commercial subscribers and public safety personnel on 20 MHz of 700 MHz spectrum. It is found that NPV is greater for the public-private partnership than for the commercial-only network for any population density, which shows that the value of 10 MHz of spectrum exceeds the cost of meeting public safety requirements. Furthermore, the paper demonstrates that NPV/cell increases with population density, so urban areas are profitable and rural areas are unprofitable. The paper demonstrates that a partnership covering 94% of the US population breaks even because the most urban 56% of population subsidizes coverage for the next 38%. If initial deployment is subsidized, a financially sustainable public-private partnership can serve much more than 94%. Additionally, it is shown that allowing urban municipalities to opt-out of the partnership can significantly increase the subsidies required.     

投资项目评价标准的比较与选择

净现值、内部收益率、获利指数等贴现指标在互斥项目选择的实际应用中,常导致不同的投资决策,其原因、解决方法是本文探讨的目的。文章首先对净现值和内部收益率进行比较分析,着重介绍了内部收益率的先天缺陷及替代方法MIRR;然后分析净现值和获利指数的主要差异,最后得出结论:净现值是确定条件下投资项目评价标准中最合理的方法,其他标准则需结合着净现值来运用,否则可能导致决策失误。     

企业并购定价诸方法之选择研究

并购作为企业规模扩张的一种效率较高的形式，被越来越多的企业所采用。而被并购企业价值的确定，即并购定价的准确与否直接决定着并购交易的成功或失败，以及并购后企业绩效的优劣。企业并购的定价方法有多种，备具特色，定价时应当视具体情况选取最为适合的定价方法以适应并购决策的需要。     

贴现评价指标在互斥项目评估中的矛盾协调研究

净现值、内部收益率和盈利指数是投资项目评估中的三种贴现指标。但三者在互斥项目评估中有时会出现矛盾冲突。分析了三种贴现指标在互斥项目评估中出现矛盾冲突的原因,并在此基础上提出了关于协调此类矛盾冲突的方法。     

The non-neutrality of debt in investment timing: a new NPV rule

Summary Limited liability debt financing of irreversible investments can affect investment timing through an entrepreneur’s option value, even after compensating a lender for expected default losses. This non-neutrality of debt arises from an entrepreneur’s unique investment opportunity, and it is shown in a standard model of irreversible investment that includes the equilibrium effect of a competitive lending sector. The analysis is partial, in that it takes as exogenously given an entrepreneur’s use of debt. Intuitively, limited liability lowers downside risk for the entrepreneur by truncating the lower tail of risks, and lowers the investment threshold. Compensating the lender for expected default losses reduces project profitability to the entrepreneur, and increases the investment threshold. The net effect is negative, because lower downside risk has an additional impact on the option value of delaying investment. The standard NPV rule in real options theory implicitly assumes debt to be neutral. With non-neutrality of debt, an investment threshold is higher than investment cost, but lower than the standard NPV rule. Comparisons with other standard investment thresholds show similar relationships.