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政大機構典藏 > 社會科學學院 > 經濟學系 > 會議論文 > Item 140.119/46328

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Title:	Bridging the Gap between Nonlinearity Tests and the Efficient Market Hypothesis by Genetic Programming
Authors:	陳樹衡 Chen, Shu-heng;Yeh, Chia-Hsuan
Date:	1996-03
Issue Date:	2010-10-06 11:32:14 (UTC+8)
Abstract:	Applies the genetic programming (GP) based notion of unpredictability to the testing of the efficient market hypothesis (EMH). This paper extends the study of Chen and Yeh (1995) by testing the EMH with a small, medium and large sample of the S&P 500 stock index. It is found that, in terms of the prediction performance, the probability π2(n) that GP can beat the random walk tends to have a negative relation to the size of the in-sample dataset. For example, when the sample size n is 50, 200 and 2000, then π2 (n) is 0.5, 0.2 and 0, respectively. This therefore suggests that, while nonlinear regularities could exist, they might exist in a very short span. As a consequence, the search costs of discovering them might be too high to make the exploitation of these regularities profitable; hence, the EMH is sustained
Relation:	Computational Intelligence for Financial Engineering, 1996., Proceedings of the IEEE/IAFE 1996 Conference on Date of Conference: 24-26 Mar 1996 Page(s): 34 - 40
Data Type:	conference
DOI 連結:	http://dx.doi.org/10.1109/CIFER.1996.501820
DOI:	10.1109/CIFER.1996.501820
Appears in Collections:	[經濟學系] 會議論文

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