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  4. Stock returns and volatility under market segmentation: The case of Chinese A and B shares
 
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Stock returns and volatility under market segmentation: The case of Chinese A and B shares

Journal
Review of Quantitative Finance and Accounting
Journal Volume
18
Journal Issue
3
Pages
239
Date Issued
2002-01-01
Author(s)
Yeh, Yin Hua
TSUN-SIOU LEE  
Pen, Jen Fu
DOI
https://api.elsevier.com/content/abstract/scopus_id/34447510167
10.1023/A:1015388201113
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/414612
URL
https://api.elsevier.com/content/abstract/scopus_id/34447510167
Abstract
In most countries where firms list separate shares for trading by foreign and domestic investors, the prices of the foreign shares tend to be higher. In China, the reverse tends to be true. In this paper, we would like to focus on the information content in lagged premiums of Chinese A over B traded shares. The lagged premiums are found to have certain predictive power over the future returns and volatility of both A and B shares, with some interesting patterns. Specifically, an increase in the premium ratio of A shares will be followed by a rise in the return of A shares and a fall in the return of B shares. It is found that both of the investors in Chinese A- and B-share markets reveal positive feedback trading behavior. Moreover, the liquidity and information availability will affect the magnitude of such behavior especially in B-share markets. By using multivariate GARCH model, it is also demonstrated that the unexpected changes in the premium ratio of A-share price over B-share price contribute to the return volatility of both A shares and B shares. These patterns may provide foundations for the development of pricing models for equity shares under market segmentation. © 2002 Kluwer Academic Publishers.
Subjects
A shares | B shares | China stock markets | Market segmentation | Positive feedback behavior
Type
journal article

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