However, the EMH has been subjected to serious challenges from many fi的繁體中文翻譯

However, the EMH has been subjected

However, the EMH has been subjected to serious challenges from many financial economists since the early 1980s. In particular, two major empirical challenges to the EMH were brought forth. The first is that many studies have indicated that stock prices are predictable. For example, Shiller (1981) discovered that there is significant predictability of stock returns over long time horizons; Poterba and Summers (1988) found significant mean reversion in stock market returns for long time periods; and Lo and MacKinlay (1999) showed that short-term serial correlations of stock returns are statistically significant. The second is that many studies have revealed a number of so-called anomalies in the stock market, which are inconsistent with the EMH. These anomalies include the small-firm effect (that is, smaller-capitalization stocks appear to outperform larger-capitalization stocks on a risk-adjusted basis), the January effect (that is, stock returns tend to be higher in January than in other months of the year), and the day-of-the-week effect (that is, stock returns appear to be lower on Mondays than on other days of the week). In spite of the vast amount of empirical evidence against the EMH, the ultimate question is: Can investors exploit
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結果 (繁體中文) 1: [復制]
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However, the EMH has been subjected to serious challenges from many financial economists since the early 1980s. In particular, two major empirical challenges to the EMH were brought forth. The first is that many studies have indicated that stock prices are predictable. For example, Shiller (1981) discovered that there is significant predictability of stock returns over long time horizons; Poterba and Summers (1988) found significant mean reversion in stock market returns for long time periods; and Lo and MacKinlay (1999) showed that short-term serial correlations of stock returns are statistically significant. The second is that many studies have revealed a number of so-called anomalies in the stock market, which are inconsistent with the EMH. These anomalies include the small-firm effect (that is, smaller-capitalization stocks appear to outperform larger-capitalization stocks on a risk-adjusted basis), the January effect (that is, stock returns tend to be higher in January than in other months of the year), and the day-of-the-week effect (that is, stock returns appear to be lower on Mondays than on other days of the week). In spite of the vast amount of empirical evidence against the EMH, the ultimate question is: Can investors exploit
正在翻譯中..
結果 (繁體中文) 2:[復制]
復制成功!
然而,自20世紀80年代初以來,EMH一直受到許多金融經濟學家的嚴峻挑戰。特別是,對EMH提出了兩個主要的經驗挑戰。首先,許多研究表明股票價格是可預測的。例如,Shiller(1981)發現,在很長一段時間內,股票回報具有顯著的可預測性;波特巴和薩默斯(1988年)發現股市長期回報顯著平均回歸;和 Lo 和 MacKinlay(1999 年)表明,股票回報的短期序列相關性在統計上是顯著的。第二,許多研究揭示了股市中一些所謂的異常現象,這與EMH不一致。這些異常情況包括小公司效應(即,在風險調整後,小市值股票似乎優於大市值股票),1月份效應(即股票收益往往高於其他月份的股票收益)。年),以及一周之日效應(即,股票回報似乎低於一周中其他日子)。儘管大量針對EMH的經驗證據,但最終的問題是:投資者能否利用
正在翻譯中..
結果 (繁體中文) 3:[復制]
復制成功!
然而,自20世紀80年代初以來,有效市場假說一直受到許多金融經濟學家的嚴峻挑戰,特別是對有效市場假說提出了兩大實證挑戰。首先,許多研究表明股票價格是可預測的。例如,Shiller(1981)發現股票收益在長時間內具有顯著的可預測性;Poterba和Summers(1988)發現股票市場收益在長時間內具有顯著的平均值回歸;Lo和MacKinlay(1999)表明,股票收益的短期序列相關具有統計顯著性。第二,許多研究揭示了股市中的一些所謂的異常現象,這與EMH的結論不一致。這些异常包括小公司效應(即,在風險調整的基礎上,小盤股的表現似乎優於大盤股)、1月份效應(即,1月份的股票回報率往往高於一年中其他月份)和一周中的一天效應(即,週一的股票回報率似乎低於一周中的其他幾天)。儘管有大量的經驗證據反對EMH,但最終的問題是:投資者能否利用<br>
正在翻譯中..
 
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