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Does More Detailed Information Mean Better Performance? An Experiment in Information Explicitness

Zilu Shang, Chris Brooks and Rachel McCloy
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Zilu Shang: ICMA Centre, Henley Business School, University of Reading
Rachel McCloy: University of Reading

ICMA Centre Discussion Papers in Finance from Henley Business School, University of Reading

Abstract: Investors are now able to analyse more noise-free news to inform their trading decisions than ever before. Their expectation that more information means better performance is not supported by previous psychological experiments which argue that too much information actually impairs performance. To test whether more information always means better performance in the stock markets, an experiment is conducted based on a trading simulation manipulated from a real market-shock. The results indicate that the explicitness of information neither improves nor impairs participants' performance effectiveness from the perspectives of returns, share and cash positions, and trading volumes. However, participants' performance efficiency is significantly affected by information explicitness. Although they need less time to implement their decisions when placing an order, explicitly informed investors are punished by making more mistakes.

Keywords: explicitness of information; performance effectiveness; performance efficiency; individual investors; experimental finance (search for similar items in EconPapers)
JEL-codes: C91 D82 G02 (search for similar items in EconPapers)
Pages: 39 pages
Date: 2013-06
New Economics Papers: this item is included in nep-cbe, nep-cta, nep-exp, nep-mst and nep-neu
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Journal Article: Does more detailed information mean better performance? An experiment in information explicitness (2014) Downloads
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