Overconfidence,CEO Selection,and Corporate Governance

We develop a model that shows that an overconfident manager, who sometimes makes value‐destroying investments, has a higher likelihood than a rational manager of being deliberately promoted to CEO under value‐maximizing corporate governance. Moreover, a risk‐averse CEO's overconfidence enhances firm value up to a point, but the effect is nonmonotonic and differs from that of lower risk aversion. Overconfident CEOs also underinvest in information production. The board fires both excessively diffident and excessively overconfident CEOs. Finally, Sarbanes‐Oxley is predicted to improve the precision of information provided to investors, but to reduce project investment.     

An Insurance Market Simulation With Both Adverse and Advantageous Selection

The theory of adverse selection predicts that high‐risk individuals are more likely to buy insurance than low‐risk individuals if asymmetric information regarding individuals’ risk type is present in the market. The theory of advantageous selection predicts the opposite—a negative relationship between insurance coverage and risk type can be obtained when hidden knowledge in other dimensions (e.g., the degree of risk aversion) is present in addition to the risk type. Using the heterogeneity of insurance buyers in either risk type or risk aversion, we first introduce a classroom‐based insurance market simulation game to show that adverse selection and advantageous selection can coexist. We then explain the underlying concepts using two methods: a mathematical framework based on expected utility theory and an empirical framework based on the results of the game itself. The game is easy to implement, reinforces textbook concepts by providing students a hands‐on experience, and supplements current textbooks by bringing their content up to date with current research.     

中国健康险市场逆向选择和正向选择并存现象的研究

本文以中国的健康险市场为例,考察不对称信息的影响。通过考察投保人投保金额以及附加险选择和索赔情况的相关关系,论文发现事后出现索赔的投保人,事前往往会选择购买附加险,但是投保金额却相对较低。结合理论模型分析,论文认为投保人在财富、风险偏好等方面的异质性以及信息不对称的存在是导致市场同时出现逆向选择和正向选择的主要原因。     

Empirical Evidence for Advantageous Selection in the Commercial Fire Insurance Market

De Meza and Webb (2001) indicated that individuals with a higher degree of risk aversion would demand more insurance and invest in self-protection to reduce risk probability when both the preference type and investment in self-protection are hidden from insurers. They referred to the negative correlation between market insurance and risk type as advantageous selection. However, the relationship between risk type and the degree of risk aversion is debatable in both theoretical and empirical research. This paper therefore proposes that advantageous selection could be supported from another angle by directly examining the relationships that exist among market insurance, self-protection, and risk probability. By focusing on the commercial fire insurance market, information on the purchase of market insurance, investment in self-protection, and fire accident records is hand-collected by means of a unique survey. It is found that firms purchasing market insurance have a greater tendency to channel efforts into self-protection. It is also found that firms expending effort on self-protection are less likely to suffer a fire accident. Furthermore, it is found that firms with commercial fire insurance have less chance of suffering a fire accident than those without such insurance. Each of the above three findings jointly supports the view that advantageous selection could play a critical role in the commercial fire insurance market.     

Managerial Overconfidence and Accounting Conservatism

Overconfident managers overestimate future returns from their firms’ investments. Thus, we predict that overconfident managers will tend to delay loss recognition and generally use less conservative accounting. Furthermore, we test whether external monitoring helps to mitigate this effect. Using measures of both conditional and unconditional conservatism respectively, we find robust evidence of a negative relation between CEO overconfidence and accounting conservatism. We further find that external monitoring does not appear to mitigate this effect. Our findings add to the growing literature on overconfidence and complement the findings by Schrand and Zechman [2011] that overconfidence affects financial reporting behavior.     

CEO Overconfidence and Corporate Investment

We argue that managerial overconfidence can account for corporate investment distortions. Overconfident managers overestimate the returns to their investment projects and view external funds as unduly costly. Thus, they overinvest when they have abundant internal funds, but curtail investment when they require external financing. We test the overconfidence hypothesis, using panel data on personal portfolio and corporate investment decisions of Forbes 500 CEOs. We classify CEOs as overconfident if they persistently fail to reduce their personal exposure to company‐specific risk. We find that investment of overconfident CEOs is significantly more responsive to cash flow, particularly in equity‐dependent firms.     

Overconfidence and Corporate Tax Policy

Review of Accounting Studies - Using a sample of firms experiencing exogenous CEO departures, we investigate whether firms with overconfident CEOs avoid more tax. We find robust evidence of a...     

Investor Overconfidence and Trading Volume

The proposition that investors are overconfident about theirvaluation and trading skills can explain high observed tradingvolume. With biased self-attribution, the level of investoroverconfidence and thus trading volume varies with past returns.We test the trading volume predictions of formal overconfidencemodels and find that share turnover is positively related tolagged returns for many months. The relationship holds for bothmarket-wide and individual security turnover, which we interpretas evidence of investor overconfidence and the disposition effect,respectively. Security volume is more responsive to market returnshocks than to security return shocks, and both relationshipsare more pronounced in small-cap stocks and in earlier periodswhere individual investors hold a greater proportion of shares.(JEL G11, G12)     

管理者过度自信与企业盈余管理行为研究

本文以我国上市公司作为研究样本,依据行为金融理论,从管理者过度自信角度研究了企业盈余管理行为。研究发现,管理者过度自信既会导致公司正向盈余管理行为的发生,也会导致负向盈余管理行为的发生。进一步研究发现,女性比例越高的管理团队越有可能进行盈余管理,管理团队的年龄越小越有可能进行正向盈余管理,管理团队学历越低越有可能进行负向盈余管理行为。本文对研究公司选择会计政策行为,治理公司盈余管理行为乃至完善公司治理结构均具有一定的启示。     

Advantageous Comparison and Rationalization of Earnings Management

This paper proposes that psychological factors can change managers' beliefs about earnings management when they choose to engage in it. I show that, under certain circumstances, engaging in a small amount of earnings management alters a manager's beliefs about the appropriateness of the act, which may increase the likelihood of further earnings management. Specifically, I predict and find in two experiments that participants who initially choose to manage earnings are motivated to rationalize their behavior. Participants who are exposed to an egregious example of earnings management (commonly the focus of enforcement actions and press reports) have the opportunity to rationalize their behavior through a mechanism called “advantageous comparison,” where participants compare their behavior against the egregious example and conclude that what they did was relatively innocuous and appropriate. My analysis also indicates that presenting participants with an example of earnings management that is similar to the initial decision they made mitigates advantageous comparison. These results have implications for academics interested in how earnings management, and perhaps fraud, can accrete over time and for regulators and practitioners who are interested in preventing it.     

Momentum,Reversals, and Fund Manager Overconfidence

This paper examines the role of investor overconfidence and self‐attribution bias in explaining the momentum effect. We develop a novel measure of overconfidence based on characteristics and trading patterns of US equity mutual fund managers. Stocks held by more overconfident managers experience greater momentum profits and stronger return reversals than stocks held by less overconfident managers. The difference in momentum profits is not compensation for risk nor is it attributable to stock characteristics that influence momentum. Our results are consistent with Daniel, Hirshleifer, and Subrahmanyam (1998) who argue that momentum results from delayed overreaction caused by overconfidence and biased self‐attribution.     

产权性质差异、管理层过度自信与会计稳健性

本文从行为金融角度,利用沪深两市A股上市公司2008-2012年的经验数据,实证检验了管理层过度自信对会计稳健性的影响,以及不同产权性质下二者影响程度的差异。研究结果表明,管理层的过度自信心理会显著降低公司的会计稳健性水平。进一步区分产权性质,国有上市公司由于存在所有者缺位和债务软约束,管理层过度自信对会计稳健性的影响较民营上市公司更强。文章的结论为完善上市公司管理层权力约束和监督机制提供了一定借鉴意义。     

Overconfidence,Investor Sentiment,and Evolution

We examine the survival of nonrational investors in an evolutionary game model with a population dynamic for a large economy. The dynamic indicates that the growth rate of wealth accumulation drives the evolutionary process. We focus our analysis on the survival of overconfidence and investor sentiment. We find that underconfidence or pessimism cannot survive, but moderate overconfidence or optimism can survive and even dominate, particularly when the fundamental risk is large. These findings provide new empirical implications for the survivability of active fund management. Our results lend support to the relevance of the psychology of investors in studying financial markets. Journal of Economic Literature Classification Numbers: G10, G14.     

Overconfidence,Compensation Contracts,and Capital Budgeting

A risk‐averse manager's overconfidence makes him less conservative. As a result, it is cheaper for firms to motivate him to pursue valuable risky projects. When compensation endogenously adjusts to reflect outside opportunities, moderate levels of overconfidence lead firms to offer the manager flatter compensation contracts that make him better off. Overconfident managers are also more attractive to firms than their rational counterparts because overconfidence commits them to exert effort to learn about projects. Still, too much overconfidence is detrimental to the manager since it leads him to accept highly convex compensation contracts that expose him to excessive risk.     

公司治理、管理者过度自信与企业股利政策

文章基于公司行为财务学视角,以2008—2010年间在上海、深圳证券交易所上市的公司为样本,对我国上市公司的高管人员过度自信、公司治理与股利政策进行了实证检验。研究结果表明,管理者过度自信与股利政策正相关,有效的公司治理能抑制管理者过度自信对股利政策的影响。     

CEO Overconfidence and Earnings Management During Shifting Regulatory Regimes

This study examines the relationship of CEO overconfidence with accrual‐based earnings management, real activities‐based earnings management, and targeting to meet or just beat analyst forecasts. Following, we measure “overconfidence” based on the CEO's tendency to hold in‐the‐money stock options, as rational expected utility maximizers should exercise early to avoid overexposure to company idiosyncratic risks. The results show that before the Sarbanes Oxley Act of 2002 (SOX), companies of overconfident CEOs were more likely than other CEOs to engage in managing earnings through accelerating the timing of cash flow from operations and achieving analyst forecast benchmarks. After SOX, we find that overconfident CEOs are more likely to have income‐increasing discretionary accruals. They remain more likely to engage in real activities management through abnormally high cash flows, and also have abnormally low discretionary expenses. These results are consistent with overconfident CEOs feeling less constrained by SOX, and suggest that this individual characteristic works against regulators’ attempts to constrain earnings management by corporate executives. In contrast, we find that the tendency of overconfident CEOs to manage to targets decreases after SOX, perhaps due to changes in investor behavior in the new regulatory environment.     

Overconfidence, Arbitrage, and Equilibrium Asset Pricing

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.     

Sensation Seeking, Overconfidence, and Trading Activity

This study analyzes the role that two psychological attributes—sensation seeking and overconfidence—play in the tendency of investors to trade stocks. Equity trading data from Finland are combined with data from investor tax filings, driving records, and mandatory psychological profiles. We use these data, obtained from a large population, to construct measures of overconfidence and sensation seeking tendencies. Controlling for a host of variables, including wealth, income, age, number of stocks owned, marital status, and occupation, we find that overconfident investors and those investors most prone to sensation seeking trade more frequently.     

比较优势理论与我国商业银行经营模式的选择

商业银行经营模式主要有分业经营和混业经营两种模式,混业经营又有全能银行和金融控股集团两种模式。我国商业银行目前仍然实行的是分业经营,已暴露出很多弊端,从长远看,中国商业银行应该实行混业经营,而在混业经营的两种模式中,根据比较优势理论,金融控股集团模式更加适合中国的实际情况,本对此进行了阐释。     

产业政策、管理者过度自信与企业流动性风险

本文对产业政策影响高管自信及企业流动性风险的机理进行分析,提出赶超产业政策激励的管理者过度自信影响企业流动性风险的理论框架,并选取典型案例企业"熔盛重工"进行理论检验。研究表明,产业政策及其传导机制一旦传递出过度激进甚至错误的政策信号,会使管理者的过度自信持续膨胀,进而加剧其对资源配置的认知偏差,导致企业流动性风险失控。这一结论扩展了管理者过度自信和企业流动性风险成因的研究视角,丰富了产业政策经济后果的研究内容,进一步说明应减少产业政策等政府资源配置手段的运用,发挥市场资源配置的决定作用。