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, the winner would most likely be the correlation coefficient with a significant difference from its first competitor. In …. Therefore, we search for robust correlation coefficients to nonnormality and outliers that could be applied to all applications … and detect influenced or hidden correlations not recognized by the most popular correlation coefficients. We introduce a …
Persistent link: https://www.econbiz.de/10014084103
approach than the usual ML approach. It is applicable to multiple -equation models with K -dimensional error correlation …
Persistent link: https://www.econbiz.de/10015149529
approach than the usual ML approach. It is applicable to multiple-equation models with K-dimensional error correlation matrices …
Persistent link: https://www.econbiz.de/10015183313
We develop a Bayesian approach for parsimoniously estimating the correlation structure of the errors in a multivariate … stochastic volatility model. Since the number of parameters in the joint correlation matrix of the return and volatility errors … is potentially very large, we impose a prior that allows the off-diagonal elements of the inverse of the correlation …
Persistent link: https://www.econbiz.de/10012727256
This paper presents a method for estimating the average treatment effects (ATE) of an exponential endogenous switching model where the coefficients of covariates in the structural equation are random and correlated with the binary treatment variable. The estimating equations are derived under...
Persistent link: https://www.econbiz.de/10012804937
We develop a simulation algorithm that generates multivariate samples with exact means, covariances, and multivariate skewness. If required for financial applications, absence of arbitrage can be ensured. Potential applications include the simulation of risk factors for the risk management of...
Persistent link: https://www.econbiz.de/10012855299
In this paper we review some standard and more recent filtering techniques, based on Random Matrix Theory (RMT), that can reduce the “empirical” noise and slightly improve standard Markowitz model's predictions
Persistent link: https://www.econbiz.de/10013100404
-frequency intraday returns. It disentangles covariance estimation into variance and correlation components. This allows to estimate …
Persistent link: https://www.econbiz.de/10013115577
The Gaussian rank correlation equals the usual correlation coefficient computed from the normal scores of the data … correlation matrix based on the Gaussian rank correlation is always positive semidefinite, and very easy to compute, also in high … the popular Kendall and Spearman correlation measures. In the empirical application, we show how it can be used for …
Persistent link: https://www.econbiz.de/10013115619
We formulate a bivariate stochastic volatility jump-diffusion model with correlated jumps and volatilities. An MCMC Metropolis-Hastings sampling algorithm is proposed to estimate the model's parameters and latent state variables (jumps and stochastic volatilities) given observed returns. The...
Persistent link: https://www.econbiz.de/10013121407