Showing 1 - 10 of 31
Persistent link: https://www.econbiz.de/10010351544
This paper proposes mixed-frequency distributed-lag (MFDL) estimators of impulse response functions (IRFs) in a setup where (i) the shock of interest is observed, (ii) the impact variable of interest is observed at a lower frequency (as a temporally aggregated or sequentially sampled variable),...
Persistent link: https://www.econbiz.de/10012058985
asset price volatility. We show how the squared low-frequency returns can be expressed in terms of the temporal aggregation … properties of the spectral density function of realized volatility series, constructed from squared returns with different … new features of volatility in financial market indices. The theoretical findings are illustrated via the analysis of both …
Persistent link: https://www.econbiz.de/10012321959
compared to starting in July, and a difference of almost 7 (!) percentage points in estimated annual volatility. This is yet …
Persistent link: https://www.econbiz.de/10010731517
I analyze efficient estimation of a cointegrating vector when the regressand is observed at a lower frequency than the regressors. Previous authors have examined the effects of specific temporal aggregation or sampling schemes, finding conventionally efficient techniques to be efficient only...
Persistent link: https://www.econbiz.de/10009019136
This paper investigates the performance of quasi maximum likelihood (QML) and nonlinear least squares (NLS) estimation applied to temporally aggregated GARCH models. Since these are known to be only weak GARCH, the conditional variance of the aggregated process is in general not known. Thus, one...
Persistent link: https://www.econbiz.de/10010837845
This paper investigates the performance of quasi maximum likelihood (QML) and nonlinear least squares (NLS) estimation applied to temporally aggregated GARCH models. Since these are known to be only weak GARCH, the conditional variance of the aggregated process is in general not known. Thus, one...
Persistent link: https://www.econbiz.de/10005043585
This paper shows how to decompose weakly stationary time series into the sum, across time scales, of uncorrelated components associated with different degrees of persistence. In particular, we provide an Extended Wold Decomposition based on an isometric scaling operator that makes averages of...
Persistent link: https://www.econbiz.de/10012202240
Persistent link: https://www.econbiz.de/10011413834
Persistent link: https://www.econbiz.de/10012612767