長久以來﹐財務學界與業界一直相信過去股票的價和量能夠提供有價值的資訊﹐但是對於如何處理與 解釋這些價與量資訊仍混沌不明。因此﹐本研究使用台灣股市日資料﹐評估各種價與量的交易策略之 績效。然後﹐我們對這些策略的異常利潤提出三種可能的解釋﹕風險﹑市場摩擦或無效率市場。 Financial academics and practitioners have long recognized that past price and volume may provide valuable information about a stock. But how price and volume information should be handled and interpreted is not clear. Therefore, using daily data from Taiwan stock markets, this research wish to evaluate the performance of various price and volume trading strategies. Then, we suggest three potential explanations for abnormal profits of these strategies﹕Risk, market frictions, or inefficient market.
