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Assessing bettors' ability to process dynamic information: Policy implications

Record type: Article

Regulation is often employed to encourage the provision of readily interpretable, explicit
information to betting markets in an effort to promote their efficiency. This approach is
supported by a considerable volume of laboratory-based research which suggests that individuals
make poor judgments in the face of implicit, dynamic information. This article investigates to
what extent horserace bettors, who have strong incentives to make good probability judgments,
require the regulator’s protection from such hostile information environments. In particular, we
examine the accuracy of the subjective probabilities of bettors concerning 16,344 horses in 1671
races. We find that bettors are skilled in adopting effective heuristics to simplify their dynamic
information environment and, even in the face of restricted information, develop well-calibrated
judgments using outcome feedback. A number of factors that help bettors to achieve good
calibration are identified and the implications for market regulation are discussed.

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Citation

Johnson, J.E.V., O'Brien, R. and Sung, M. (2010) Assessing bettors' ability to process dynamic information: Policy implications Southern Economic Journal, 76, (4), pp. 906-931. (doi:10.4284/sej.2010.76.4.906).

More information

Published date: April 2010

Identifiers

Local EPrints ID: 64383
URI: http://eprints.soton.ac.uk/id/eprint/64383
ISSN: 0038-4038
PURE UUID: a9d01f3a-633d-4784-bc85-8f76a47e0486

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Date deposited: 19 Jan 2009
Last modified: 17 Jul 2017 14:13

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