对于证券分析师的盈余预测能更好地测量市场的盈余期望的研究之后,人们开始更多关注预测偏差的具体特征,即分析师的预测是否是对与未来盈利的无偏估计。国外的一些学者从动机理论和行为理论的角度对分析师乐观倾向及其成因进行了较为系统和深入的研究。国内则有少数学者研究分析师预测行为的有效性。 After the research of securities analyst’s earnings forecast to better measure the market’s earnings expectations, people began to pay more attention to the specific characteristics of the forecast bias, namely, whether the analyst’s forecast is an unbiased estimate of future earnings. Some foreign scholars conducted a systematic and in-depth study on the optimistic tendency of the analysts and their causes from the perspectives of motivation theory and behavior theory. Few domestic scholars study the effectiveness of analysts in predicting behavior.