Some investment advisors offer multiple versions of a fund with the same manager and highly correlated returns. But these twinʺ funds are separate portfolios for different investors with differing abilities to select and monitor managers. Using a matched sample of retail and institutional twin...

Studies examine the relation between mutual fund performance and trading cost using a variety of proxies - the most common being portfolio turnover. Overall, the evidence is consistent with informational equilibrium, i.e., trading has zero net impact on performance. We offer an alternative...

With detailed product- and firm-level data for mutual funds, we study why mutual fund families relinquish control of fund management (advising) and outsource to non-affiliated entities and why those entities agree to manage for the fund family. Fund families and fund advisors cannot write...