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In their original article, McInish and Puglisi (1982) examine the weak form efficiency of nineteen international money market instruments using a runs test. Taylor asserts that on theoretical grounds other tests would have been better. McInish and Puglisi argue that their tests were satisfactory and that until empirical evidence is offered the economic significance of Taylor's claims is uncertain (at best). 相似文献
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McInish and Puglisi reccntly claimed that weak form efficiency should be tested by runs tests and not autocorrelation tests, when returns are not Normal. It is the opinion of this author however, that autocorrelation tests are not invalidated by a non-Normal distribution. Furthermore, it can be shown that the runs test has lower power than autocorrelation tests and ihat the runs test is not preferable. 相似文献
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