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Karl Pearson developed the correlation coefficient r(X,Y) in 1890s vastly underestimates dependence between two series …. Vinod(2014} develops new generalized correlation coefficients so that when r*(Y|X) > r*(X|Y) then X is the "kernel cause … latest rendering of the theory behind causal paths including theorems with proofs. The function 'causeSummBlk(.)' is …
Persistent link: https://www.econbiz.de/10012860226
noise model with correlation and volatility processes being constant over small intervals. The asymptotic equivalence of the …
Persistent link: https://www.econbiz.de/10009388782
distribution theory for a generalized multiscale estimator including a feasible central limit theorem with optimal convergence rate …
Persistent link: https://www.econbiz.de/10009151649
In this article we focus on estimating the quadratic covariation of continuous semimartingales from discrete observations that take place at asynchronous observation times. The Hayashi-Yoshida estimator serves as synchronized realized covolatility for that we give our own distinct illustration...
Persistent link: https://www.econbiz.de/10009151650
Karl Pearson developed the correlation coefficient r(X,Y) in 1890's. Vinod (2014) develops new generalized correlation …
Persistent link: https://www.econbiz.de/10012991829
We reformulate and decompose the Pearson and Spearman correlation coefficients into two components. We recommend the …-parallel line correlation, hidden, mixed, influenced, or weaker but significant relationships not recognized by standard …
Persistent link: https://www.econbiz.de/10014235900
average treatment effect of interest will typically fail. While the form of this measurement error varies across applications …, in many cases the measurement error structure is heterogeneous across different groups of observations. We develop a … novel measurement error correction procedure capable of addressing heterogeneous mismeasurement structures by leveraging …
Persistent link: https://www.econbiz.de/10012019266
Equity basket correlation is an important risk factor. It characterizes the strength of linear dependence between … propose several hedging schemes based on implied correlation (IC) forecasts. Modeling IC is a challenging task both in terms … of computational burden and estimation error. First the number of correlation coefficients to be estimated would grow …
Persistent link: https://www.econbiz.de/10009665551
covariance matrix eigenvalues, while for the Box-Cox dynamic correlation (BC-DC) specification the variances are transformed …
Persistent link: https://www.econbiz.de/10010344500
into intraday covariance and correlation dynamics. We show that intraday (co-)variations (i) follow underlying periodicity …
Persistent link: https://www.econbiz.de/10010411945