← Search

Journal of Banking & Finance Vol. 37 No. 3 2013

Explaining share price disparity with parameter uncertainty: Evidence from Chinese A- and H-shares

Tsz-Kin Chung; Cho-Hoi Hui; Ka-Fai Li

Research Department, Hong Kong Monetary Authority, 55/F, Two International Finance Centre, 8 Finance Street, Central, Hong Kong, China

Abstract

The price disparity between the A- and H-share markets for dual-listed firms in China is one of the most intriguing puzzles in the Mainland and Hong Kong financial markets. In this paper, we revisit this price disparity puzzle using the channel of parameter uncertainty. In the presence of information asymmetry and market segmentation, investors have different views on a firm’s asset volatility, and hence different valuations of the same reference firm. We estimate a structural model for equity pricing using a Bayesian approach, in which the uncertainty of investor model parameters is represented by the posterior standard deviation of the firm’s asset volatility. Our regression analysis shows that in addition to other market-based and macro factors, parameter uncertainty explains variations in price disparity.

DOI
10.1016/j.jbankfin.2012.11.004
Volume
37
Issue
3
Pages
1073-1083
Language
en
Sources
crossref openalex bibtex:phds-export.bib

Cite