1997
DOI: 10.1111/j.1475-6803.1997.tb00248.x
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Prior Uncertainty, Analyst Bias, and Subsequent Abnormal Returns

Abstract: In this paper we examine the relation between analysts' overoptimism and uncertainty as proxied by the standard deviation of earnings forecasts. We find a positive relation between overoptimism and uncertainty, but very little or no optimism when uncertainty is low. If the uncertainty surrounding a firm is high, analysts have fewer reputational concerns when they act on their inclinations to issue optimistic forecasts. Portfolio strategies based on these findings generate abnormal returns. The results suggest … Show more

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Cited by 100 publications
(71 citation statements)
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“…The notion of earnings being less predictable has been captured empirically in several ways: standard deviation of weekly abnormal returns (Lim, 2001), forecast dispersion (Ackert and Athanassakos, 1997), and degree of international diversification (Duru and Reeb, 2002). The empirical evidence in those studies is consistent with analysts' forecasts being more optimistic if the proxies applied indicate that the firms' earnings are less predictable.…”
Section: Analysis Of the Analyst's Forecasts And Forecast Revisionsmentioning
confidence: 90%
See 1 more Smart Citation
“…The notion of earnings being less predictable has been captured empirically in several ways: standard deviation of weekly abnormal returns (Lim, 2001), forecast dispersion (Ackert and Athanassakos, 1997), and degree of international diversification (Duru and Reeb, 2002). The empirical evidence in those studies is consistent with analysts' forecasts being more optimistic if the proxies applied indicate that the firms' earnings are less predictable.…”
Section: Analysis Of the Analyst's Forecasts And Forecast Revisionsmentioning
confidence: 90%
“…(2) the high frequency of downward revisions (e.g., Scherbina, 2004); (3) decreasing bias in analysts' forecasts over the forecast horizon (e.g., Richardson et al, 2004); and (4) more pronounced optimism in analysts' forecasts for firms whose earnings are less predictable (e.g., Lim, 2001;Ackert and Athanassakos, 1997;Duru and Reeb, 2002). Also, the core premise of the paper -that analysts anticipate earnings management when issuing a forecast -has empirical support (e.g., Burgstahler and Eames, 2003;Liu, 2004).…”
Section: Introductionmentioning
confidence: 99%
“…Huberts and Fuller (1995) also believe that brokerage firms and their analysts have incentives to produce optimistic forecasts in order to please company management. Similar to Ackert and Athanassakos (1997), they hypothesize and document that the most optimistic forecasts are observed for companies whose earnings have been difficult to predict. They conjecture this finding is because investors have more difficulty detecting this bias and therefore will not punish analysts' and damage reputations.…”
Section: Theory and Hypothesesmentioning
confidence: 90%
“…Prior related research presents evidence on a relation between forecast uncertainty and optimism in longer-horizon forecasts (Ackert and Athanassakos 1997;Das et al 1998;Lim 2001). With longer-horizon forecasts, managers prefer analysts to be overly optimistic (see the discussion in Sect.…”
Section: Earnings Forecast Uncertainty and Forecast Optimismmentioning
confidence: 99%