"We investigate the information content of inter- transaction time and find that it varies both across stocks and over time. On average, inter-transaction time is found to be informative whenever stocks are sufficiently traded. The magnitude of the information content is found to be larger for...

This paper focuses on the recently developing financial derivatives markets, and examines the usefulness of option prices as an information variable for monetary policy implementation. A set of option prices provides us with information on the whole probability distribution of the future values...

The efficiency of Japanese stock market to appropriately price the riskiness of Japanese firms has been frequently questioned, particularly with respect to Japanese banks which have experienced severe financial distress in recent years. This paper examines the response in the stock market...