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regression model. Asymptotic distribution theory is developed for the estimation method which enjoys the same rate of convergence … as univariate function estimation. For the test statistic, asymptotic normal theory is established. These theoretical …We propose marginal integration estimation and testing methods for the coefficients of varying coefficient multivariate …
Persistent link: https://www.econbiz.de/10009627286
the price of a commodity, currency or similar quantity. Interval estimation and hypothesis testing for H are central to …
Persistent link: https://www.econbiz.de/10009581110
problem of online estimation of current values of w = w(T) and a = a(T) from the observations SI , ... ,ST. We propose an … adaptive method of estimation which does not use any information about time homogeneity of the obscured process. We apply this …
Persistent link: https://www.econbiz.de/10009582392
dealing with more than one lag. When the mean has an additive structure, however, better estimation methods are available … estimation of the conditional mean, it is equally if not more important to measure the future risk of the series along with the … interpretation of each lagged value's influence on such a function. In this paper we consider the joint estimation of both the …
Persistent link: https://www.econbiz.de/10009578559
of a credit score and the estimation of the probability of default. One of the standard approaches is logistic … technique is based on the theory generalized partial linear models. We illustrate the advantages of this approach using a …
Persistent link: https://www.econbiz.de/10009627282
Persistent link: https://www.econbiz.de/10001918932
Based on daily VDAX data this paper analyzes the factors governing the movements of implied volatilities of options on the German stock index DAX. Using Principal Components Analysis over the sample period from 1996 to 1997, we derive common factors representing "shift" and "curvature" of the...
Persistent link: https://www.econbiz.de/10009612026
East-West migration in Germany peaked at the beginning of the 90s although the average wage gap between Eastern and … Western Germany continues to average about 25%. We analyze the propensity to migrate using microdata from the German … compatible with classical Marshallian theory of migration and motivates the semiparametric analysis. We estimate a Generalized …
Persistent link: https://www.econbiz.de/10009574896
It is common practice to identify the number and sources of shocks that move implied volatilities across space and time by applying Principal Components Analysis (PCA) to pooled covariance matrices of changes in implied volatilities. This approach, however, is likely to result in a loss of...
Persistent link: https://www.econbiz.de/10009613597
The analysis of diffusion processes in financial models is crucially dependent on the form of the drift and diffusion coefficient functions. A methodology is proposed for estimating and testing coefficient functions for ergodic diffusions that are not directly observable. It is based on...
Persistent link: https://www.econbiz.de/10009613611