The level of diseconomies of scale in asset management has important implications for tests of manager skill and the expected level of performance persistence. To identify the causal impact of fund size on future returns, we exploit the fact that small differences in returns can cause discrete...

The level of diseconomies of scale in asset management has important implications for tests of manager skill and the expected level of performance persistence. To identify the causal impact of fund size on future returns, we exploit the fact that small differences in returns can cause discrete...

This study provides formal theoretical evidence that constructions of fund alpha that are implemented using robust specifications of asset pricing models generate alpha estimates that are well defined. Regardless, the formal theoretical model shows fund alphas that are constructed with the...