Cross-Extrapolative Beliefs: Evidence from Equity Analysts
研究股票分析师是否会将一个公司的坏消息外推到其他公司，导致过度悲观和意见分歧，进而影响交易量、波动率和定价。
We study whether individuals form extrapolative beliefs across different tasks. In line with cross-extrapolation, equity analysts who experience bad news from some of their coverage firms become overly pessimistic about other firms in their coverage. This leads to disagreement among analysts and has implications for the stock market, as we observe effects on trading volume, return volatility, and pricing. Our findings highlight the relevance of non-domain-specific belief models. This paper was accepted by Camelia Kuhnen, finance. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2024.04903 .