The Journal of Finance

American Finance Association

Published: 02/23/2018   |   DOI: 10.1111/jofi.12608

David Hirshleifer

American Finance Association

Published: 01/03/2018   |   DOI: 10.1111/jofi.12597

David Hirshleifer

Investor Psychology and Asset Pricing

Published: 12/17/2002   |   DOI: 10.1111/0022-1082.00379

David Hirshleifer

The basic paradigm of asset pricing is in vibrant flux. The purely rational approach is being subsumed by a broader approach based upon the psychology of investors. In this approach, security expected returns are determined by both risk and misvaluation. This survey sketches a framework for understanding decision biases, evaluates the a priori arguments and the capital market evidence bearing on the importance of investor psychology for security prices, and reviews recent models.

Presidential Address: Social Transmission Bias in Economics and Finance

Published: 05/27/2020   |   DOI: 10.1111/jofi.12906

DAVID HIRSHLEIFER

I discuss a new intellectual paradigm, social economics and finance—the study of the social processes that shape economic thinking and behavior. This emerging field recognizes that people observe and talk to each other. A key, underexploited building block of social economics and finance is social transmission bias: systematic directional shift in signals or ideas induced by social transactions. I use five “fables” (models) to illustrate the novelty and scope of the transmission bias approach, and offer several emergent themes. For example, social transmission bias compounds recursively, which can help explain booms, bubbles, return anomalies, and swings in economic sentiment.

Good Day Sunshine: Stock Returns and the Weather

Published: 05/06/2003   |   DOI: 10.1111/1540-6261.00556

David Hirshleifer, Tyler Shumway

Psychological evidence and casual intuition predict that sunny weather is associated with upbeat mood. This paper examines the relationship between morning sunshine in the city of a country's leading stock exchange and daily market index returns across 26 countries from 1982 to 1997. Sunshine is strongly significantly correlated with stock returns. After controlling for sunshine, rain and snow are unrelated to returns. Substantial use of weather‐based strategies was optimal for a trader with very low transactions costs. However, because these strategies involve frequent trades, fairly modest costs eliminate the gains. These findings are difficult to reconcile with fully rational price setting.

Visibility Bias in the Transmission of Consumption Beliefs and Undersaving

Published: 03/21/2023   |   DOI: 10.1111/jofi.13223

BING HAN, DAVID HIRSHLEIFER, JOHAN WALDEN

We model visibility bias in the social transmission of consumption behavior. When consumption is more salient than nonconsumption, people perceive that others are consuming heavily, and infer that future prospects are favorable. This increases aggregate consumption in a positive feedback loop. A distinctive implication is that disclosure policy interventions can ameliorate undersaving. In contrast with wealth‐signaling models, information asymmetry about wealth reduces overconsumption. The model predicts that saving is influenced by social connectedness, observation biases, and demographic structure, and provides new insight into savings rates. These predictions are distinct from other common models of consumption distortions.

Overconfidence, Arbitrage, and Equilibrium Asset Pricing

Published: 12/17/2002   |   DOI: 10.1111/0022-1082.00350

Kent D. Daniel, David Hirshleifer, Avanidhar Subrahmanyam

This paper offers a model in which asset prices reflect both covariance risk and misperceptions of firms' prospects, and in which arbitrageurs trade against mispricing. In equilibrium, expected returns are linearly related to both risk and mispricing measures (e.g., fundamental/price ratios). With many securities, mispricing of idiosyncratic value components diminishes but systematic mispricing does not. The theory offers untested empirical implications about volume, volatility, fundamental/price ratios, and mean returns, and is consistent with several empirical findings. These include the ability of fundamental/price ratios and market value to forecast returns, and the domination of beta by these variables in some studies.

The Causal Effect of Limits to Arbitrage on Asset Pricing Anomalies

Published: 05/21/2020   |   DOI: 10.1111/jofi.12947

YONGQIANG CHU, DAVID HIRSHLEIFER, LIANG MA

We examine the causal effect of limits to arbitrage on 11 well‐known asset pricing anomalies using the pilot program of Regulation SHO, which relaxed short‐sale constraints for a quasi‐random set of pilot stocks, as a natural experiment. We find that the anomalies became weaker on portfolios constructed with pilot stocks during the pilot period. The pilot program reduced the combined anomaly long–short portfolio returns by 72 basis points per month, a difference that survives risk adjustment with standard factor models. The effect comes only from the short legs of the anomaly portfolios.

Investor Psychology and Security Market Under‐ and Overreactions

Published: 12/17/2002   |   DOI: 10.1111/0022-1082.00077

Kent Daniel, David Hirshleifer, Avanidhar Subrahmanyam

We propose a theory of securities market under‐ and overreactions based on two well‐known psychological biases: investor overconfidence about the precision of private information; and biased self‐attribution, which causes asymmetric shifts in investors' confidence as a function of their investment outcomes. We show that overconfidence implies negative long‐lag autocorrelations, excess volatility, and, when managerial actions are correlated with stock mispricing, public‐event‐based return predictability. Biased self‐attribution adds positive short‐lag autocorrelations (“momentum”), short‐run earnings “drift,” but negative correlation between future returns and long‐term past stock market and accounting performance. The theory also offers several untested implications and implications for corporate financial policy.

Security Analysis and Trading Patterns When Some Investors Receive Information Before Others

Published: 12/01/1994   |   DOI: 10.1111/j.1540-6261.1994.tb04777.x

DAVID HIRSHLEIFER, AVANIDHAR SUBRAHMANYAM, SHERIDAN TITMAN

In existing models of information acquisition, all informed investors receive their information at the same time. This article analyzes trading behavior and equilibrium information acquisition when some investors receive common private information before others. The model implies that, under some conditions, investors will focus only on a subset of securities (“herding”), while neglecting other securities with identical exogenous characteristics. In addition, the model is consistent with empirical correlations that are suggestive of oft‐cited trading strategies such as profit taking (short‐term position reversal) and following the leader (mimicking earlier trades).

Are Overconfident CEOs Better Innovators?

Published: 07/19/2012   |   DOI: 10.1111/j.1540-6261.2012.01753.x

DAVID HIRSHLEIFER, ANGIE LOW, SIEW HONG TEOH

Previous empirical work on adverse consequences of CEO overconfidence raises the question of why firms hire overconfident managers. Theoretical research suggests a reason: overconfidence can benefit shareholders by increasing investment in risky projects. Using options‐ and press‐based proxies for CEO overconfidence, we find that over the 1993–2003 period, firms with overconfident CEOs have greater return volatility, invest more in innovation, obtain more patents and patent citations, and achieve greater innovative success for given research and development expenditures. However, overconfident managers achieve greater innovation only in innovative industries. Our findings suggest that overconfidence helps CEOs exploit innovative growth opportunities.

Driven to Distraction: Extraneous Events and Underreaction to Earnings News

Published: 09/28/2009   |   DOI: 10.1111/j.1540-6261.2009.01501.x

DAVID HIRSHLEIFER, SONYA SEONGYEON LIM, SIEW HONG TEOH

Recent studies propose that limited investor attention causes market underreactions. This paper directly tests this explanation by measuring the information load faced by investors. The investor distraction hypothesis holds that extraneous news inhibits market reactions to relevant news. We find that the immediate price and volume reaction to a firm's earnings surprise is much weaker, and post‐announcement drift much stronger, when a greater number of same‐day earnings announcements are made by other firms. We evaluate the economic importance of distraction effects through a trading strategy, which yields substantial alphas. Industry‐unrelated news and large earnings surprises have a stronger distracting effect.

Does Investor Misvaluation Drive the Takeover Market?

Published: 03/09/2006   |   DOI: 10.1111/j.1540-6261.2006.00853.x

MING DONG, DAVID HIRSHLEIFER, SCOTT RICHARDSON, SIEW HONG TEOH

This paper uses pre‐offer market valuations to evaluate the misvaluation and Q theories of takeovers. Bidder and target valuations (price‐to‐book, or price‐to‐residual‐income‐model‐value) are related to means of payment, mode of acquisition, premia, target hostility, offer success, and bidder and target announcement‐period returns. The evidence is broadly consistent with both hypotheses. The evidence for the Q hypothesis is stronger in the pre‐1990 period than in the 1990–2000 period, whereas the evidence for the misvaluation hypothesis is stronger in the 1990–2000 period than in the pre‐1990 period.

Naïve Buying Diversification and Narrow Framing by Individual Investors

Published: 03/20/2023   |   DOI: 10.1111/jofi.13222

JOHN GATHERGOOD, DAVID HIRSHLEIFER, DAVID LEAKE, HIROAKI SAKAGUCHI, NEIL STEWART

We provide the first tests to distinguish whether individual investors equally balance their overall portfolios (naïve portfolio diversification, NPD) or, in contrast, equally balance the values of same‐day purchases of multiple assets (naïve buying diversification, NBD). We find NBD in purchases of multiple stocks, and in mixed purchases of individual stocks and funds. In contrast, there is little evidence of NPD. Evidence suggests that NBD arises due to stock picking behavior and neglect of diversification. These findings suggest that behavioral finance theory should incorporate transaction, as well as portfolio, framing.