Showing 1 - 10 of 58
relate to the copula representation of positive quadrant dependence. For such a test we propose and justify inference relying …
Persistent link: https://www.econbiz.de/10005612063
We develop a test of equality between two dependence structures estimated through empirical copulas. We provide inference for independent or paired samples. The multiplier central limit theorem is used for calculating p-values of the Cram´er-von Mises test statistic. Finite sample properties...
Persistent link: https://www.econbiz.de/10005534205
This papfer deals with distributional free inference to test for positive quadrant dependence, i.e. for the probability that two variables are simultaneously small (or large) being at least as great as it would be were they dependent.
Persistent link: https://www.econbiz.de/10005843307
We study a test statistic based on the integrated squared difference between a kernel estimator of the copula density … and a kernel smoothed estimator of the parametric copula density. We show for fixed smoothing parameters that the test is …
Persistent link: https://www.econbiz.de/10005858871
We study a test statistic on the integrated squared difference between a kernel estimator of the copula density and a … kernel smoothed estimator of the parametric copula density. We show for fixed smoothing parameters that the test is …
Persistent link: https://www.econbiz.de/10005771776
Using properties of the cdf of a random variable defined as a saddle-type point of a real valued continuous stochastic process, we derive first-order asymptotic properties of tests for stochastic spanning w.r.t. a stochastic dominance relation. First, we define the concept of Markowitz...
Persistent link: https://www.econbiz.de/10011877232
This paper develops a simple technique that controls for ldquo;false discoveries,rdquo; or mutual funds that exhibit significant alphas by luck alone. Our approach precisely separates funds into (1) unskilled, (2) zero-alpha, and (3) skilled funds, even with dependencies in cross-fund estimated...
Persistent link: https://www.econbiz.de/10003961716
Macroeconomic time series often involve a threshold effect in their ARMA representation, and exhibit long memory features. In this paper we introduce a new class of threshold ARFIMA models to account for this. The threshold effect is introduced in the autoregressive and/or the fractional...
Persistent link: https://www.econbiz.de/10003966199
This paper develops a simple technique that controls for "false discoveries", or mutual funds that exhibit significant alphas by luck alone. Our approach precisely separates funds into (1) unskilled, (2) zero-alpha, and (3) skilled funds, even with dependencies in cross-fund estimated alphas. We...
Persistent link: https://www.econbiz.de/10009525174
We derive nonparametric tests of symmetry using asymmetric kernels with either shrinking or fixed bandwidths. We show how to extend the approach to examine conditional symmetry by deriving conditions under which our tests are applicable to residuals from semiparametric models with a...
Persistent link: https://www.econbiz.de/10009295709