Stock prices should respond only to unpredictable components of economic news (‘innovations’) in efficient markets. While innovations used in empirical investigations of the economic underpinnings of stock market risk should at least satisfy this basic requirement this may not guarantee...

Changes in the risk structure of stock returns may sometimes be very revealing. We examine economic variables that help explain principal components in UK stock returns, 01/1985 to 12/2001. The loading pattern on explanatory variables for the first component in a ‘bubble’ period is...

Initial public offerings in China are distinguished from IPOs in other markets by their extremely high abnormal initial returns and so-called 'Chinese Characteristics'. We examine the effect on IPO underpricing and short-run performance of significant changes in Chinese IPO regulations...