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  • 學位論文

股票漲跌幅政策之經濟分析

What happens when Stock Price Movements are "Limited"?

指導教授 : 毛慶生

摘要


股票市場漲跌幅政策為許多國家所採納, 並被視為穩定資產市場的重要工具。 實施國的政府多半認為, 股票漲跌幅限制有助於緩和股價波動。 本文以 Lucas (1978) 模型架構, 討論股票漲跌幅限制之政策效果。 我們發現, 越嚴苛的漲跌幅限制將促使現有股價偏離基本面, 這種股價扭曲效果在經濟面臨短暫性衝擊時更加明顯。 此外, 越嚴苛的價格限制不僅無穩定股價之效, 反而使股價過度反應, 波動更形劇烈。 以上結果和漲跌幅政策目標不僅無「相輔相成」之功, 反倒有「背道而馳」之果, 隱含股票漲跌幅政策可能是無效的。 在經濟面臨永久性衝擊時, 股價扭曲效果和過度反應效果較不顯著。

並列摘要


參考文獻


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