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| Title: | 企業投資之實質選擇權評價
The Real Option Valuation of Corporate Investments |
| Authors: | 吳明政
Wu, Ming Cheng |
| Contributors: | 顏錫銘
Yen, Simon H.
吳明政
Wu, Ming Cheng |
| Keywords: | 實質選擇權
跳躍模型
研發
管理彈性
企業投資
資本預算
real options
jump-diffusion processes
research and development
managerial flexibilities
corporate investments
capital budgeting |
| Date: | 2002 |
| Issue Date: | 2016-05-10 18:56:45 (UTC+8) |
| Abstract: | 建立適當的資本投資決策，對於企業未來的發展具有深遠的影響。如何能擬定出適合的資本預算計畫，以增加公司的成長機會與競爭能力，便是當前重要的課題。本論文以三個階段探討企業投資歷程中所具有的實質選擇權評價：包括對於計畫案擬定之初期，進行投資機會價值評估的實質成長選擇權。以及針對投資計畫開始進行時，管理者所擁有的各種管理彈性，如遞延、擴張、縮減與暫停投資的決策彈性，進行多重實質選擇權的價值評估。最後，針對未能順利成功的計畫案，管理者擁有將其永遠放棄，以收回投資成本殘值的實質放棄選擇權價值進行評估。
對於第一階段的成長選擇權價值評估，本文已建立出同時考量標的資產與投資成本隨機變動，以及標的資產存在不連續跳躍特性下的選擇權評價封閉解，結果可用來評估計畫方案擬定初期的實質成長選擇權價值。若將評價模式中的參數進行限制，則本模型將會分別退化至Black and Scholes(1973), Merton(1976), Fischer(1978), Margrabe(1978), McDonald and Siegel(1985)等重要的選擇權評價文獻，可知本文已獲致較一般化的評價模型。
在第二階段的多重實質選擇權價值評估，本文採用Trigeorgis(1991)所建立的對數轉換二項評價模式，再加入跳躍模型的考量，以符合科技產業所具有的創新、競爭特性，期較能合理評估其價值，也獲得了較一般化的評價模式。再者，本文以模擬方式對於管理者在投資計畫的進行過程中所擁有的遞延、擴張、縮減以及暫停投資等彈性決策價值進行評估，以彰顯出利用實質選擇權評價方法進行彈性決策價值評估的必要性。由數值分析的結果得到，當多個實質選擇權同時存在時，其間將產生不同程度的交互作用，因此並不能直接將個別價值予以加總來求算整體的實質選擇權價值。不過，每項管理彈性的加入對於整體價值的增加皆具有正向貢獻。
對於第三階段的放棄選擇權價值評估，本文建立同時存在多項投資方案下的實質放棄選擇權評價模型，結果可用來評估研發計畫方案未能成功時的實質放棄選擇權價值。此外，本文進一步對於此評價模型進行數值分析，並將所得到的結果歸納如下：(1)方案間價值變動相關係數對於實質放棄選擇權價值的影響上，有相關係數越高時，實質放棄選擇權的價值就越高的現象。(2)殘值回收比率較高時，若採取較多的投資計畫方案，將可以獲致較高的實質放棄選擇權價值，此結果可作偽管理者在選擇備抵方案數目時的參考。(3)對於敏威性分析的探討，發現到當殘值增加、利率下降以及剩餘期間較長時，實質放棄選擇權的價值是增加的，此現象與賣權特性結果一致。
因此，本文針對企業投資歷程中所具有的實質選擇權評價進行深入探討，分別建立選擇權評價模型，也獲致了較以往模型更一般化的評價結果。並於各評價模型建構完成後，輔以數值模擬與敏感性分析，以進一步說明本文所建構模型之一般性與合理性。最後，希望此結果有助於日後企業對於投資價值評估時之參考，並可彌補此類研究文獻的不足。
This dissertation presents three essays, each provides a general real option pricing model. In the first essay, we derive a generalized option pricing formula for the case of the underlying asset and exercise price both being driven by a mixture of continuous and jump diffusion processes. Our pricing model is a generalized version of Black and Scholes(1973), Merton(1976), Fischer(1978), Margrabe(1978), and McDonald-Siegel(l 985). And each of the historical model is shown to be a special case of ours. We then use the model developed in this article to evaluate real growth options where the underlying assets follow jump diffusion processes. The second essay develops a multi-option pricing model incorporating jump characteristics. The model we provide here can be used to value various types of flexibilities, including the option to defer, the option to shut down, the option to contract, and the option to expand. Based on our numerical results, we find that the model can deal with the interactions among these options. The third essay considers an abandonment option on the maximizing value of several investment projects. Here we develop a model to evaluate R&D projects that may not be accomplished. We show that both Black-Scholes`s model and Stuiz`s model are special cases of ours under certain restrictions on parameters. From the simulation results, we find a positive relation between the correlation of project value changes and the value of the real abandonment options. Furthermore, our simulation results show that the higher the percentage of recovering salvage value, the more number of investment projects should be carried out. The result we find can help managers to choose the better backup projects. Our sensitivity analysis shows that the value of the real abandonment options increase when the riskless interest rate decreases, and at the same time the salvage value and the time to maturity increase. |
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顏錫銘、吳明政:"創業投資公司投資案價值的評估-採用多重實質選擇權評價方法"，科技管理學刊，2001年4月，第六卷第一期，頁105-132。
顏錫銘、吳明政，。存在多項R&D投資計畫下的實質放棄選擇權評價方法"，2002年5月，台灣財務金融學術暨實務研討會論文集。
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| Description: | 博士
國立政治大學
財務管理研究所
g6357503 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#A2010000066 |
| Data Type: | thesis |
| Appears in Collections: | [財務管理學系] 學位論文
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