搜索结果: 1-9 共查到“数量经济学 MULTIVARIATE”相关记录9条 . 查询时间(0.269 秒)
How Fama Went Wrong: Measures of Multivariate Kurtosis for the Identification of the Dynamics of a N-Dimensional Market
Multivariate Kurtosis Dynamics N-Dimensional Market
2012/9/14
This paper investigates the common intuition suggesting that dur-ing crises the shape of the financial market clearly differentiates from that of random walk processes. In this sense, it challenges th...
A multivariate piecing-together approach with an application to operational loss data
copula domain of multivariate attraction GPD copula multivariate extreme value distribution multivariate generalized Pareto distribution
2012/6/5
The univariate piecing-together approach (PT) fits a univariate generalized Pareto distribution (GPD) to the upper tail of a given distribution function in a continuous manner. We propose a multivaria...
Segmentation analysis on a multivariate time series of the foreign exchange rates
finite multivariate Gaussian mixture Jensen-Shannon divergence variance-covariance matrix cross-sectional analysis
2012/6/2
This study considers the multivariate segmentation procedure under the assumption of the multivariate Gaussian mixture. Jensen-Shannon divergence between two multivariate Gaussian distributions is emp...
Consistent single- and multi-step sampling of multivariate arrival times: A characterization of self-chaining copulas
Dependence Modeling Arrival Times Sampling Archimedean Copula Gumbel-Hougaard Copula Marshall-Olkin Copula
2012/4/28
This paper deals with dependence across marginally exponentially distributed arrival times, such as default times in financial modeling or inter-failure times in reliability theory. We explore the rel...
Density Approximations for Multivariate Affine Jump-Diffusion Processes
Affine Processes Asymptotic Expansion Density Approximation
2011/7/25
Abstract: We introduce closed-form transition density expansions for multivariate affine jump-diffusion processes. The expansions rely on a general approximation theory which we develop in weighted Hi...
Inference on multivariate ARCH processes with large sizes
Inference multivariate ARCH processes large sizes
2010/10/29
The covariance matrix is formulated in the framework of a linear multivariate ARCH
process with long memory, where the natural cross product structure of the covariance is
generalized by adding two ...
CLOSED-FORM LIKELIHOOD EXPANSIONS FOR MULTIVARIATE DIFFUSIONS
Diffusions likelihood expansions discrete observations
2014/3/13
This paper provides closed-form expansions for the log-likelihood function of multivariate diffusions sampled at discrete time intervals. The coefficients of the expansion are calculated explicitly by...
THE CONVERGENCE OF MULTIVARIATE ‘UNIT ROOT’ DISTRIBUTIONS TO THEIR ASYMPTOTIC LIMITS The Case of Money-Income Causality
MULTIVARIATE UNIT ROOT DISTRIBUTIONS THEIR ASYMPTOTIC LIMITS Money-Income Causality
2014/3/18
We examine the quality of recently developed asymptotic approximations to the sampling distributions of various statistics in levels regressions when the regressors have unit ro...
A One-Factor Multivariate Time Series Model of Metropolitan Wage Rates
State space model Dynamic factor anal-ysis Kalman filter Method of scoring Unobserved com- ponent estimation
2014/3/18
The paper formulates and estimates a single-factor multi-variate time series model. The model is a dynamic gen-eralization of the multiple indicator (or factor analysis) model. ...