Clustering on the same news sources in an asset market
MPRA Paper from University Library of Munich, Germany
We study the incentives to acquire information from exclusive news sources versus information from popular sources in a CARA-normal asset market. Each trader is able to observe one of a finite number of news sources. Clustering on the most precise source can happen for two reasons. One is standard: traders do not care that they dilute others’ profits by trading on the same information. The other reason is more novel: traders with different information sets may respond to the same news differently — when this is so, they can benefit by coordinating their attention on the same news source in order to take opposite sides of the market. News from such a source will generate abnormal volume that need not be accompanied by large price movement. Furthermore, we show that as the number of sources grows, traders concentrate their attention on a few of the best ones, leaving most information unexploited.
Keywords: information acquisition; herding; abnormal volume; market order; limit order (search for similar items in EconPapers)
JEL-codes: G12 G14 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cfn and nep-mst
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