behind rank or nonparametric statistical methods. Given predictor variable X and outcome variable Y, we may estimate D(YX) as … somersd package allows the estimation of Somers’ D and Kendall’s tau-a with confidence limits as well as p-values. The Stata 9 … version of somersd can estimate extended versions of Somers' D not previously available, including the Gini index, the …

) maximization of the difference between the profit of one firm and that of the other firm, 2) (Ratio case) maximization of the ratio … efficient (lower cost) firm in the ratio case is larger than that in the difference case and the price of the good of the more … efficient firm in the ratio case is lower than that in the difference case. For the less efficient firm (higher cost firm) we …

) maximization of the difference between the profit of one firm and that of the other firm and (2) (ratio case) maximization of the … efficient (lower cost) firm in the ratio case is larger than that in the difference case and the price of the good of the more … efficient firm in the ratio case is lower than that in the difference case. For the less efficient (higher cost) firm we obtain …

for the ratio of coefficients of variation of two log-normal distributions constructed using the Bayesian approach. These …

misspecified. The most commonly used robust confidence interval, the generalized Wald interval, is known to be liberal in small … performance: the generalized score interval; the robust profile likelihood interval; a new, modified generalized score interval …

In this work, the exact finite-sample distribution of the median absolute deviation about the median (MAD) of … parameter of a location–scale model, which are robust to the presence of outliers. …