Stochastic Volatility, Trading Volume, and the Daily Flow of Information
We use state-space methods to investigate the relation between volume, volatility, and ARCH effects within a mixture of distributions hypothesis (MDH) framework. Most recent studies of the MDH fit AR(1) specifications that require the information flow to be highly persistent. Using a more general specification, we find evidence of a large nonpersistent component of volatility that is closely related to the contemporaneous nonpersistent component of volume. However, in contrast to studies that fit volume-augmented GARCH models, we find no evidence that volume subsumes ARCH effects. Since volume-augmented GARCH models are subject to simultaneity bias, our findings should be more robust than these prior results.
Year of publication: |
2006
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Authors: | Fleming, Jeff ; Kirby, Chris ; Ostdiek, Barbara |
Published in: |
The Journal of Business. - University of Chicago Press. - Vol. 79.2006, 3, p. 1551-1590
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Publisher: |
University of Chicago Press |
Saved in:
Online Resource
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