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Market efficiency in foreign exchange markets

机译:外汇市场的市场效率

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We investigate the relative market efficiency in financial market data, using the approximate entropy(ApEn) method for a quantification of randomness in time series. We used the global foreign exchange market indices for 17 countries during two periods from 1984 to 1998 and from 1999 to 2004 in order to Study the efficiency of various foreign exchange markets around the market crisis. We found that on average, the ApEn values for European and North American foreign exchange markets are larger than those for African and Asian ones except Japan. We also found that the ApEn for Asian markets increased significantly after the Asian currency crisis. Our results suggest that the markets with a larger liquidity such as European and North American foreign exchange markets have a higher market efficiency than those with a smaller liquidity such as the African and Asian markets except Japan. (C) 2007 Elsevier B.V. All rights reserved.
机译:我们研究金融市场数据中的相对市场效率,使用近似熵(ApEn)方法对时间序列中的随机性进行量化。为了研究围绕市场危机的各种外汇市场的效率,我们使用了1984年至1998年以及1999年至2004年两个时期的17个国家的全球外汇市场指数。我们发现,除日本外,欧洲和北美外汇市场的ApEn值平均大于非洲和亚洲外汇市场的ApEn值。我们还发现,亚洲货币危机之后,面向亚洲市场的ApEn显着增加。我们的结果表明,流动性较大的市场(如欧洲和北美外汇市场)比流动性较小的市场(如非洲和亚洲市场)(日本除外)具有更高的市场效率。 (C)2007 Elsevier B.V.保留所有权利。

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