Existing work on mutual fund performance persistence obtains diverse results, depending on the group of funds studied. We examine whether performance persistence within a peer group of competing mutual funds depends on the group's composition. The U.K. mutual fund industry is ideal for such an...

In this article we compare volatility forecasts over a thirty-minute horizon for the spot exchange rates of the Deutsche mark and the Japanese yen against the U.S. dollar. Explicitly modeling the intraday seasonal pattern improves the out-of-sample forecasting performance. We find that a...