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Scientific article
Open access
English

Technical trading revisited: False discoveries, persistence tests, and transaction costs

Published inJournal of financial economics, vol. 106, no. 3, p. 473-491
Publication date2012
Abstract

We revisit the apparent historical success of technical trading rules on daily prices of the DJIA index from 1897 to 2011, and use the False Discovery Rate as a new approach to data snooping. The advantage of the FDR over existing methods is that it selects more outperforming rules which allows diversifying against model uncertainty. Persistence tests show that, even with the more powerful FDR technique, an investor would never have been able to select ex ante the future best-performing rules. Moreover, even in-sample, the performance is completely offset by the introduction of low transaction costs. Overall, our results seriously call into question the economic value of technical trading rules that has been reported for early periods.

Keywords
  • Technical Trading
  • False Discovery Rate
  • Persistence
  • Transaction Costs
Citation (ISO format)
BAJGROWICZ, Pierre, SCAILLET, Olivier. Technical trading revisited: False discoveries, persistence tests, and transaction costs. In: Journal of financial economics, 2012, vol. 106, n° 3, p. 473–491. doi: 10.1016/j.jfineco.2012.06.001
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Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal0304-405X
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