Advisors often manage multiple versions of a fund. These "twins" have the same manager and similar performance but are sold to different investors with differing abilities to select and monitor managers. Comparing investor flows in retail and institutional twins, we find that institutional...

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

Berk and Green (2004) argue that investment inflow at high-performing mutual funds eliminates return persistence because fund managers face diminishing returns to scale. Our study examines the role of trading costs as a source of diseconomies of scale for mutual funds. We estimate annual trading...

Incubation is a strategy for initiating new funds, where multiple funds are started privately, and, at the end of an evaluation period, some are opened to the public. Consistent with incubation being used by fund families to increase performance and attract flows, funds in incubation outperform...

Regulations allow market makers to short sell without borrowing stock, and the transactions of a major options market maker show that in most hard-to-borrow situations, it chooses not to borrow and instead fails to deliver stock to its buyers. Some of the value of failing passes through to...

This study provides empirical evidence on the role of disclosure in resolving agency conflicts in delegated investment management. For certain expenditures fund managers have alternative means of payment which differ greatly in their opacity: payments can be expensed (relatively transparent); or...

Regulations allow market makers to short sell without borrowing stock, and the transactions of a major options market maker show that in most hard-to-borrow situations, it chooses not to borrow and instead fails to deliver stock to its buyers. A part of the value of failing passes through to...

Retail investors often lack investment expertise. Mutual-fund brokers can help, but their incentives are mixed so it is an empirical question what value they add, both for consumers and for fund families. Investors pay more to invest through unaffiliated brokers than captive brokers, and while...