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股價指數期貨避險策略新應用研究

Hedging with Stock Index Futures: A New Approach in Portfolio Choice and Risk Management

摘要


股價指數期貨的避險已在二十年前應用在投資組合的管理上,然而在眾多文獻資料中,對於股價指數期貨避險的解釋和使用方法仍生分歧。本篇研究告在建立一套學習避險策略的連貫架構,冀望讓除了學習到避險比率的公式外,還能灌輸不同避險方法之意義。本篇研究內容是藉著投資組合理論和市場模式(股票報酬率對市場報酬率的迴歸式)之傳統財務知識,來提供一套股價指數期貨避險的新應用模型或方式。這種方法比起傳統的解析方式,更直接和清晰的了解到「避險比率」和「最佳化避險合約數目」的公式由來,以及各種避險方法間的差異。

並列摘要


Hedging with stock index futures applied to the management of stock portfolio two decades ago. However, the methods and explanations of hedging strategies are quite divergent in academic literature. The paper is to build a coherent framework for learning hedging strategies. We hope, in addition to knowing the formula of hedge ratio, students and practitioners can also realize the meanings of hedging methods.With the help of the knowledge of ”portfolio theory” and ”market model”, the paper provides a new approach of stock index futures hedging. The approach can directly derive the formulas of ”hedge ratio” and ”optimum number of contract”. It can also clearly explain the differences of various hedging strategies.

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