Publications [#358097] of Tim Bollerslev

Journal Articles

1. Bollerslev, T, Realized Semi(co)variation: Signs That All Volatilities are Not Created Equal, Journal of Financial Econometrics, vol. 20 no. 2 (January, 2022), pp. 219-252, Oxford University Press (OUP) [doi]
   (last updated on 2024/04/19)

   Abstract:
   I provide a selective review of recent developments in financial econometrics related to measuring, modeling, forecasting, and pricing "good"and "bad"volatilities based on realized variation type measures constructed from high-frequency intraday data. An especially appealing feature of the different measures concerns the ease with which they may be calculated empirically, merely involving cross-products of signed, or thresholded, high-frequency returns. I begin by considering univariate semivariation measures, followed by multivariate semicovariation and semibeta measures, before briefly discussing even richer partial (co)variation measures. I focus my discussion on practical uses of the measures emphasizing what I consider to be the most noteworthy empirical findings to date pertaining to volatility forecasting and asset pricing.