Efficiency in the capital markets requires that capital flows are sufficient to arbitrage anomalies away. We examine the relationship between flows to a "quant" strategy that is based on capital market anomalies, and the subsequent performance of this strategy. When these flows are high, quant...

We investigate the dual notions that “dumb money” exacerbates well-known stock return anomalies, and “smart money” attenuates these anomalies. We find that aggregate flows to mutual funds (“dumb money”) appear to exacerbate cross-sectional mispricing, particularly for growth,...

We explore the premise that the degree of market efficiency changes dynamically as investment funds face time-varying funding constraints to arbitrage capital. We show that the returns to a composite long-short hedge strategy that encompasses relative value, momentum, short-run reversals, and...