This study examines herding behavior in six Asia-Pacific stock markets, namely, Taiwan, China, South Korea, Singapore, Hong Kong, and Japan, during a period of turmoil, particularly the latest subprime mortgage crisis. We find no evidence of herding in the stock markets of Singapore and Hong Kong, and only partial evidence of herding in the stock markets of South Korea and Japan. However, we document significant evidence of herding in the stock markets of Taiwan and China. This result suggests that herding is more pronounced in developing nations, where markets are dominated by individual investors and where daily price limits are observed. Furthermore, we empirically verify and visually corroborate the comparative co-movement behavior between markets with respect to the "home bias reflection hypothesis" and the degree of market openness. Finally, we find apparent herding behavior in a rising market state and during post-crisis period.
This paper investigates the use of the representativeness heuristic and herding recommendation by experts in Taiwanese investment magazines. We reveal that high-performing experts exhibit less use of representativeness heuristics and more use of herding stock recommendations than poor performers do. Representativeness and herding recommendations increase when sentiments are pessimistic and during bull markets. In general, more representative stocks yield lower abnormal returns and higher return comovement. However, for high-performing experts, recommendations with some degree of representativeness have a higher abnormal return than do recommendations with no representativeness. In addition, stock return comovement caused by herding recommendations catches more market-level news than does stock return comovement that is caused by representativeness.
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