Showing 1 - 10 of 21,534
-memory. -- stochastic volatility ; frequency domain estimation ; robust estimation ; spurious persistence ; long-memory ; level shifts …
Persistent link: https://www.econbiz.de/10009660446
run volatility function. Our estimation is based on a two-step LAD procedure. We establish the relevant asymptotic theory … robust estimation of both long-run and short-run volatilities. Our estimation is semiparametric since the long-run volatility … propose different robust estimation methods for nonstationary and strictly stationary GARCH parameters with nonparametric long …
Persistent link: https://www.econbiz.de/10009719116
I provide conditions under which the trimmed FDQML estimator, advanced by McCloskey (2010) in the context of fully parametric short-memory models, can be used to estimate the long-memory stochastic volatility model parameters in the presence of additive low-frequency contamination in log-squared...
Persistent link: https://www.econbiz.de/10013098304
In this paper, we derive a new algebraic property of two scales estimation in high frequency data, under which the … components. As an application of this representation, the paper develops a central limit theory for multivariate volatility …
Persistent link: https://www.econbiz.de/10012914838
This paper reestablishes the main results in Bai (2003) and Bai and Ng (2006) for high dimensional nonlinear factor models, with slightly stronger conditions on the relative magnitude of N(number of subjects) and T(number of time periods). Factors and loadings are estimated by maximum...
Persistent link: https://www.econbiz.de/10012849457
estimation of this class is introduced and theoretically shown to exponentially outperform the crude Monte-Carlo estimator, in …
Persistent link: https://www.econbiz.de/10012889760
This paper proposes maximum (quasi)likelihood estimation for high dimensional factor models with regime switching in …
Persistent link: https://www.econbiz.de/10014357821
This paper proposes maximum (quasi)likelihood estimation for high dimensional factor models with regime switching in …
Persistent link: https://www.econbiz.de/10014083426
This paper reestablishes the main results in Bai (2003) and Bai and Ng(2006) for generalized factor models, with slightly stronger conditions on therelative magnitude of N(number of subjects) and T(number of time periods).Convergence rates of the estimated factor space and loading space and...
Persistent link: https://www.econbiz.de/10014088743
We develop a novel machine learning method to estimate large dimensional time-varying GMM models via our newly designed ridge fusion regularization scheme. Our method is a one-step procedure and allows for abrupt, smooth and dual type time variation with a fast rate of convergence. It...
Persistent link: https://www.econbiz.de/10013234588