Virtual volatility
物理与社会
2009-11-13 v2 数据分析、统计与概率
统计金融
摘要
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.
关键词
引用
@article{arxiv.physics/0607101,
title = {Virtual volatility},
author = {A. Christian Silva and Richard E. Prange},
journal= {arXiv preprint arXiv:physics/0607101},
year = {2009}
}
备注
15 pages, 2 figures, elsart.cls, Accepted to Physica A. Added few comments that clarify data used for empirical work