期刊
MANAGEMENT SCIENCE
卷 59, 期 11, 页码 2566-2585出版社
INFORMS
DOI: 10.1287/mnsc.2013.1722
关键词
limited attention; category learning; industry information diffusion
Within industry, stock returns of larger firms lead those of smaller firms, suggesting an intraindustry information diffusion process. Most industry leaders, however, have business segments in other industries (henceforth, minor-segment industries), whereas most small firms are pure players operating in one industry only. If investors cannot filter out the irrelevant information from the leaders' minor segments, the pure players will be mispriced due to spurious cross-industry information diffusion (SCIID). Consistent with the SCUD hypothesis, we document both a strong contemporaneous and a lead-lag relation in stock returns between firms from industry leaders' minor-segment industries and pure players in the industry leaders' major-segment industry. Our results are not due to potential missing common factors or economic relationships between pure. players and firms in the minor-segment industries.
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