We investigate the informational role of trading volume and quote changes in VIX options with regard to future movements in the index, based upon a high-frequency framework. Our results reveal that whilst volume imbalances convey no significant predictive information, quote changes in VIX...

Central bank informal communications became more frequent and acquired more mass media attention after the global financial crisis. Do investors react to the content (e.g., future expansionary or restrictive policy) of informal central bank communications? And especially, do investors have a...

In contrary to previous literature, we show in the Grossman-Stiglitz model of noisy rational expectation that the social value of asymmetric information can be improved with more informative prices when being informed is uncertain. Investors always benefit from a privately payoff-relevant...