後PC時代，網路整合電腦(Computer)、通訊(Communication)及有線電視 (Cable TV)，形成所謂三C產業。有線電視業由於擁有普及的用戶網路以及寬頻技術日趨成熟，使其成為產業整合要角，其價值也受到重新的重視。顯然，有線電視的網路價值是諸多購併或投資案的討論重點。 有線電視業擁有現有的網路資產，如同握有一選擇的權利 ，可以在產業前景看好時增加寬頻投資，以獲取未來的商機 。顯然此類基礎投資往往金額龐大，回收期間偏長，如果用傳統NPV法評估，常產生過低或負的價值，影響決策者的判斷。 本研究以個案研究的方式，依上述的產業特性，嘗試以實質選擇權(Real Option)的觀念評估個案公司的寬頻網路價值 。透過簡單的Black & Scholes選擇權定價模型(B/S Model)，將實務中的相關數據代入各變數，估算出此一網路建設的成長價值，除和NPV值比較外，並探討模型中各變數對此價值的影響，進而提出策略建議，提供決策者參考。為彌補B/S Model的理論限制，再以更寬放的二項式選擇權定價模型(Binomial Option Pricing Model)來驗算。此模型以電腦程式執行求解。

M.Com. (Finance and Investment Management) / The latest financial crisis that began in 2007 in the USA and spread to Europe, Africa and other continents has highlighted the importance of liquidity and its role in financial markets. One of the most commonly accepted mathematical models used in financial markets is the Black and Scholes option pricing model (BSM model). The assumptions in the BSM model have again been questioned during the current crisis and, in particular, the assumption of an unending risk-free supply of liquidity. This report reviews this assumption in the South African financial markets with local market participants. These views are polled through the use of a questionnaire to gauge these participants' views on liquidity using proxies or factors that impact overall liquidity. The results showed significantly different perspectives depending on the role of the participant as either market maker or price taker. The overall liquidity proxies used showed that local market participants believe these proxies impact liquidity. The view that liquidity is an unending commodity and thus priced as riskless was disputed by local market participants. The practical significance of the research problem in the local context should provide local participants with some insight into local perceptions on liquidity that may provide some practical tools when pricing or trading instruments in the local market.