Attention allocation and return co-movement: Evidence from repeated natural experiments

• 成果类型: Article
• 署名作者: Huang, Shiyang; Huang, Yulin; Lin, Tse-Chun
• 署名单位: University of Hong Kong
• 刊物名称: JOURNAL OF FINANCIAL ECONOMICS
• ISSN/ISSBN: 0304-405X
• DOI: 10.1016/j.jfineco.2018.10.006
• 发表日期: 2019
• 页码: 369-383
• 关键词: Lottery jackpots; Attention shocks; Attention allocation; Return co-movement; Earnings surprises

摘要

We hypothesize that when investors pay less attention to financial markets, they rationally allocate relatively more attention to market-level information than to firm-specific information, leading to increases in stock return co-movements. Using large jackpot lotteries as exogenous shocks that attract investors' attention away from the stock market, we find supportive evidence that stock returns co-move more with the market on large jack-pot days. This effect is stronger for stocks preferred by retail investors and is not driven by gambling sentiment. We also find that stock returns are less sensitive to earnings surprises and co-move more with industries on large jackpot days. (C) 2018 Elsevier B.V. All rights reserved.