Original language | English (US) |
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Title of host publication | The New Palgrave Dictionary of Economics |
Editors | Steven N. Durlauf, Lawrence E. Blume |
Publisher | Palgrave Macmillan |
Edition | 2nd |
State | Published - 2008 |
Abstract
Realized volatility is a fully nonparametric approach to ex post measurement of the actual realized return variation over a specific trading period. It encompasses specific empirical procedures and an associated continuous-record asymptotic theory for arbitrage-free jump diffusions. It provides the ideal model-free benchmark for volatility model performance evaluation, and it has numerous natural areas of application within financial economics.