Showing 1 - 10 of 27
Stable autoregressive models of known finite order are considered with martingale differences errors scaled by an unknown nonparametric time-varying function generating heterogeneity. An important special case involves structural change in the error variance, but in most practical cases the...
Persistent link: https://www.econbiz.de/10012779220
There is an emerging consensus in empirical finance that realized volatility series typically display long range dependence with a memory parameter (d) around 0.4 (Andersen et al. (2001), Martens et al. (2004)). The present paper provides some analytical explanations for this evidence and shows...
Persistent link: https://www.econbiz.de/10012783439
This paper develops a linearity test that can be applied to cointegrating relations. We consider the widely used RESET specification test and show that when this test is applied to nonstationary time series its asymptotic distribution involves a mixture of noncentral chi-squared distributions,...
Persistent link: https://www.econbiz.de/10012784069
errors, which arise from the estimation of the yield curve from noisy data. The estimates are implemented with daily CRSP …
Persistent link: https://www.econbiz.de/10012786925
estimators. The latter retains the good asymptotic properties of ML estimation while removing finite sample bias. This method …
Persistent link: https://www.econbiz.de/10012754057
This paper motivates and introduces a two-stage method for estimating diffusion processes based on discretely sampled observations. In the first stage we make use of the feasible central limit theory for realized volatility, as recently developed in Barndorff-Nielsen and Shephard (2002), to...
Persistent link: https://www.econbiz.de/10012754522
reversion parameter of the associated interest rate diffusion equation. This parameter is well known to be subject to estimation … bias when standard methods like maximum likelihood (ML) are used. The estimation bias can be substantial even in very large … error. Our findings indicate that bias correction in estimation of the drift can be more important in pricing bond options …
Persistent link: https://www.econbiz.de/10012754648
This paper proposes a Gaussian estimator for nonlinear continuous time models of the short term interest rate. The approach is based on a stopping time argument that produces a normalizing transformation facilitating the use of a Gaussian likelihood. A Monte Carlo study shows that the finite...
Persistent link: https://www.econbiz.de/10012754691
This paper proposes a novel positive nonparametric estimator of the conditional variance function without reliance on logarithmic or other transformations. The estimator is based on an empirical likelihood modification of conventional local level nonparametric regression applied to squared mean...
Persistent link: https://www.econbiz.de/10012716626
these asymptotics are relevant include instrumental variable (IV) estimation with many (possibly weak) instruments and some …
Persistent link: https://www.econbiz.de/10005342348