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Do the Price Limits in KOSDAQ Market change on the Volatility?
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코스닥시장의 가격제한폭 확대는 변동성을 증가시키는가?

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Type
Academic journal
Author
Jonghae Park (경남과학기술대학교) DEASUNG JUNG (부산대학교)
Journal
대한경영정보학회 경영과 정보연구 경영과 정보연구 제33권 제2호 KCI Accredited Journals
Published
2014.6
Pages
119 - 133 (15page)

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Do the Price Limits in KOSDAQ Market change on the Volatility?
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Abstract· Keywords

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This Research focuses on the effect of the price limits change in KOSDAQ market change on the volatility. The sample period ranges from 22 May 2000 to 24 March 2010 for daily data. We construct two subsample periods for comparing with the effect of the change of the price limit. These limits were relaxed from 12% to 15% on March 25, 2005. The first subsample period is from 25 March 2000 to 24 March 2005. The second subsample period is from 25 March 2005. to 24 March 2010. We employee four different volatility, which are the range-based volatility of Parkinson(1980; PK), Garman and Klass(1980; GK) Rogers and Satchell(1991; RS), Yang and Zhang(2008; YZ). The empirical result as follows. The major findings are summarized as follows;First, the volatility of individual stocks in KOSDAQ market reduces significantly after the price limit change. Second, There is so high volatile especially when the volatility of stock prices is high. Third, There is no meaningful relationship between volatility and market capitalization. Fourth, the more volume stocks reduce the volatility. Our results show the volatility decreased the more large volume, the more trading amount and the high price stock.

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