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Are Magnet Effects Caused by Uninformed Traders? Evidence from Taiwan Stock Exchange

Wong, Woon K., Chang, M. C. and Tu, A. H. 2009. Are Magnet Effects Caused by Uninformed Traders? Evidence from Taiwan Stock Exchange. Pacific-Basin Finance Journal 17 (1) , pp. 28-40. 10.1016/j.pacfin.2008.03.001

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Abstract

Using transactions and quotes data, we find significant magnet effects of price limit rules in Taiwan Stock Exchange (TSEC). Consistent with Subrahmanyam [Subrahmanyam, A., 1994. Circuit breakers and market volatility: a theoretical perspective. Journal of Finance 49, 237–254], we find that when limit hits are imminent, trading activities intensify with higher volume and volatility. More importantly, our transactions data allows us to examine the roles of institutions and individuals in the magnet effects in TSEC. There is strong evidence that magnet effects are caused by uninformed individuals, whereas if trade volumes are dominated by institutions, no significant magnet effect is found. The policy implication of our findings is that transparency and institutional participation can help to reduce the frequency of magnet effects.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Business (Including Economics)
Subjects: H Social Sciences > HB Economic Theory
H Social Sciences > HF Commerce
H Social Sciences > HG Finance
Uncontrolled Keywords: Price limit; Magnet effect; Transactions data; Information asymmetry; Taiwan Stock Exchange
Publisher: Elsevier
ISSN: 0927-538X
Last Modified: 04 Jun 2017 05:10
URI: http://orca-mwe.cf.ac.uk/id/eprint/49183

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