管理偏差:演示幻灯片

Itzhak Ben-David, J. Graham, Campbell R. Harvey
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引用次数: 1

摘要

我们根据2013年《经济学季刊》上的论文《管理偏差》(management Miscalibration),精选了一些研讨会幻灯片。通过对一大批首席财务官对标普500指数回报的预测,我们发现高管们严重误算,得出的分布范围太窄了。实现回报率在高管们80%的置信区间内的概率只有36%。我们还发现,对股市有错误判断的高管对自己公司的前景也有类似的错误判断。最后,管理失误的公司似乎会采取更激进的公司政策:加大投资,使用更多的债务融资。我们还进行了一次更新,我们的样本量几乎翻了一番。虽然通常情况下,结果在发表后会变弱(或消失),但我们的新证据表明,校准错误的程度已经恶化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Managerial Miscalibration: Presentation Slides
We present a selection of seminar slides based on our 2013 Quarterly Journal of Economics paper, Managerial Miscalibration. Using a large panel of CFO forecasts of S&P 500 returns, we find that executives are severely miscalibrated, producing distributions that are far too narrow. Realized returns are within the executives' 80% confidence intervals only 36% of the time. We also find that executives who are miscalibrated about the stock market show similar miscalibration regarding their own firms’ prospects. Finally, firms with miscalibrated executives seem to follow more aggressive corporate policies: investing more and using more debt financing. We also feature an update where we nearly double our sample size. While it is often the case that results get weaker (or disappear) after publication, our new evidence suggests that the degree of miscalibration has worsened.
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