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Stambaugh, Robert F. - 2019

Greater skill of active investment managers can mean less fee revenue in a general equilibrium. Although more …-skilled managers earn more revenue than less-skilled managers, greater skill for active managers overall can imply less revenue for … their industry. Greater skill allows managers to identify mispriced securities more accurately and thereby make better …

Persistent link: https://www.econbiz.de/10012479976

Scale and Skill in Active Management

Pastor, Lubos - 2014

We empirically analyze the nature of returns to scale in active mutual fund management. We find strong evidence of decreasing returns at the industry level: As the size of the active mutual fund industry increases, a fund's ability to outperform passive benchmarks declines. At the fund level,...

Persistent link: https://www.econbiz.de/10012458773

Anomalies Abroad : Beyond Data Mining

Lu, Xiaomeng - 2017

A pre-specified set of nine prominent U.S. equity return anomalies produce significant alphas in Canada, France, Germany, Japan, and the U.K. All of the anomalies are consistently significant across these five countries, whose developed stock markets afford the most extensive data. The anomalies...

Persistent link: https://www.econbiz.de/10012453902

Arbitrage Asymmetry and the Idiosyncratic Volatility Puzzle

Stambaugh, Robert F. - 2012

Short selling, as compared to purchasing, faces greater risks and other potential impediments. This arbitrage asymmetry explains the negative relation between idiosyncratic volatility (IVOL) and average return. The IVOL effect is negative among overpriced stocks but positive among underpriced...

Persistent link: https://www.econbiz.de/10012460100

The Long of It : Odds that Investor Sentiment Spuriously Predicts Anomaly Returns

Stambaugh, Robert F. - 2012

Extremely long odds accompany the chance that spurious-regression bias accounts for investor sentiment's observed role in stock-return anomalies. We replace investor sentiment with a simulated persistent series in regressions reported by Stambaugh, Yu and Yuan (2012), who find higher long-short...

Persistent link: https://www.econbiz.de/10012460429

The Short of It : Investor Sentiment and Anomalies

Stambaugh, Robert F. - 2011

This study explores the role of investor sentiment in a broad set of anomalies in cross-sectional stock returns. We consider a setting where the presence of market-wide sentiment is combined with the argument that overpricing should be more prevalent than underpricing, due to short-sale...

Persistent link: https://www.econbiz.de/10012461759

Predictive Regressions

Stambaugh, Robert F. - 1999

When a rate of return is regressed on a lagged stochastic regressor, such as a dividend yield, the regression disturbance is correlated with the regressor's innovation. The OLS estimator's finite-sample properties, derived here, can depart substantially from the standard regression setting....

Persistent link: https://www.econbiz.de/10012471691

Costs of Equity Capital and Model Mispricing

Pastor, Lubos - 1998

Costs of equity for individual firms are estimated in a Bayesian framework using several factor-based pricing models. Substantial prior uncertainty about mispricing often produces an estimated cost of equity close to that obtained with mispricing precluded, even for a stock whose average return...

Persistent link: https://www.econbiz.de/10012472312

Predictive Systems : Living with Imperfect Predictors

Pastor, Lubos - 2008

We develop a framework for estimating expected returns---a <i>predictive system</i>---that allows predictors to be imperfectly correlated with the conditional expected return. When predictors are imperfect, the estimated expected return depends on past returns in a manner that hinges on the correlation...

Persistent link: https://www.econbiz.de/10012464843

Analyzing Investments Whose Histories Differ in Length

Stambaugh, Robert F. - 1997

This study explores multivariate methods for investment analysis based on a sample of return histories that differ in length across assets. The longer histories provide greater information about moments of returns, not only for the longer-history assets, but for the shorter-history assets as...

Persistent link: https://www.econbiz.de/10012472906