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...

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,...

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 document a positive relation between the volatility of liquidity and expected returns. Our measure of liquidity is based on Amihud (2002) and its volatility is measured using daily data. We show that the volatility of liquidity effect is different from previously documented liquidity risks:...

We analyze the price reaction to analysts' revisions by testing the Griffin and Tversky (1992) hypothesis that agents place emphasis on the strength of the signal (the dramatic nature of the event) and may de-emphasize the weight (the ability of the analyst making the recommendation). Two...