The top 5% of actively managed U.S. equity mutual funds in 2012 had greater aggregate TNA than the remaining 95% of funds combined. This skewness in size has implications for mutual fund research: What is true of the average fund is not necessarily true of the average dollar. We explore several...

The value of exchange traded fund (ETF) assets has increased from $66 billion in 2000 to almost a trillion dollars in 2010. We use this massive expansion in ETF assets to study what drives ETF flows. Using a data set of over 500 ETFs from 2001 to 2010, we show that ETF investors chase returns in...

We test the biasedness of unsolicited ratings relative to solicited ratings using the ex post firm performance measured by the long-run stock performance of firms following rating announcements and changes. We find that the announcements of new unsolicited ratings are followed by negative...