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Maximum-likelihood estimates of the parameters of stochastic differential equations are consistent and asymptotically efficient, but unfortunately difficult to obtain if a closed-form expression for the transitional probability density function of the process is not available. As a result, a...
Persistent link: https://www.econbiz.de/10009483276
Weibull distribution plays an important role in failure distribution modeling in reliability studies. It is a hard work to estimate the parameters of Weibull distribution. This distribution has three parameters, but for simplicity, a parameter is omitted and as a result, the estimation of the...
Persistent link: https://www.econbiz.de/10009481562
Weibull distributions play an important role in reliability studies and have many applications in engineering. It normally appears in the statistical scripts as having two parameters, making it easy to estimate its parameters. However, once you go beyond the two parameter distribution, things...
Persistent link: https://www.econbiz.de/10009481810
This thesis is mainly concerned with the estimation of parameters of a first-order Smooth Threshold Autoregressive (STAR) model with delay parameter one. The estimation procedures include classical and Bayesian methods from a parametric and a semiparametric point of view.As the theoretical...
Persistent link: https://www.econbiz.de/10009434818
Stochastic di®erential equations (SDEs) are central to much of modern finance theory and have been widely used to model the behaviour of key variables such as the instantaneous short-term interest rate, asset prices, asset returns and their volatility. The explanatory and/or predictive...
Persistent link: https://www.econbiz.de/10009437988
three methods of estimation will be discussed and compared: maximum likelihood estimation (MLE), method of moments …
Persistent link: https://www.econbiz.de/10009457215
and beta, that can be difficult to estimate. Maximum likelihood and method of moments estimation are possible, though … method of moments is much more straightforward. We examine both of these methods here, and compare them to three more … beta distribution. We find the quantile estimator performs as well as maximum likelihood and method of moments estimators …
Persistent link: https://www.econbiz.de/10009457237
The digitization of a circular arc causes an inherent loss of geometrical information. Arcs with slightly different local curvature or position may lead to exactly the same digital pattern. In this paper we give a characterization of all centers and radii of circular arcs yielding the same...
Persistent link: https://www.econbiz.de/10009460014
The aim of this article is to (a) reexamine the nature of structural equation modeling (SEM) estimates of autoregressive moving average (ARMA) parameters; (b) replicate S. Van Buuren's simulation experiment in light of P. C. M. Molenaar's comment; and (c) examine the behavior of the...
Persistent link: https://www.econbiz.de/10009460362
The main aim of this thesis is the development of locally risk-minimizing hedging strategies for unit-linked life insurance contracts whose unit is modeled in a general Lévy-process financial market. It therefore merges the quite advanced and in recent years developed theory of...
Persistent link: https://www.econbiz.de/10009462196