The effects of multilateral trading systems on risk and return in equity markets

Vikash Ramiah, Imad Moosa, Huy Pham, Anthony Scundi and Wai Han Teoh

Applied Economics, 2015, vol. 47, issue 44, 4777-4792

Abstract: The event study methodology of Brown and Warner (1985) is adopted and augmented to evaluate the effect of the launch of multilateral trading systems on risk and return in equity markets. The methodology is supplemented with various techniques, such as the nonparametric ranking test and kernel regression, to find out if announcements about the introduction of Chi-X Australia generated abnormal returns (ARs). Asset pricing models are fitted with interaction variables, while GARCH, threshold ARCH (TARCH), exponential GARCH (EGARCH) and power-ARCH (PARCH) are used to determine changes in systematic risk. We find evidence in favour of Fisher's separation theorem and detect a new market anomaly, which we call the 'Fisher market anomaly'. Our results show that Chi-X system testings affect ARs. Consistent with the adaptive expectations theory, we confirm that the first announcement about the launch of Chi-X affected systematic risk the most. In addition, we identify industry and firm effects in risk analysis.

Date: 2015
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DOI: 10.1080/00036846.2015.1034843

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