Virtual volatility

A. Christian Silva and Richard E. Prange

Physica A: Statistical Mechanics and its Applications, 2007, vol. 376, issue C, 507-516

Abstract: We introduce the concept of virtual volatility. This simple but new measure shows how to quantify the uncertainty in the forecast of the drift component of a random walk. The virtual volatility also is a useful tool in understanding the stochastic process for a given portfolio. In particular, and as an example, we were able to identify mean reversion effect in our portfolio. Finally, we briefly discuss the potential practical effect of the virtual volatility on an investor asset allocation strategy.

Keywords: Volatility; Investments; Mean return; Predictability; Mean reversion (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:376:y:2007:i:c:p:507-516

DOI: 10.1016/j.physa.2006.10.017

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