A generalized estimator representing a class of estimators is proposed for the estimation of regression coefficients in the linear regression model when the error components have the joint multivariate Student-t distribution. Approximate expressions for the bias and the risk of the proposed...

This article uses a case study of Bass to examine the business and accounting history of trade mark defence in the nineteenth and early twentieth centuries. We employ a variety of business, legal and parliamentary records to discuss the measures they adopted to prevent trade mark infringement....

Two classes of estimators in two different situations of (i) unknown and (ii) known variance ([sigma]2), for estimating the population mean ([mu]) of symmetrical populations have been proposed. The general expressions of bias and mean squared error, of which the bias and mean squared error of...

Considering a linear regression model subject to a set of linear restrictions binding the coefficients, two classes of estimators are proposed; their risk functions with respect to a general quadratic loss function are derived under non-normality, their properties are studied and the general...

Srivastava and Jhajj (1981) proposed a class of estimators for population mean of a character using auxiliary information and optimum values involving unknown parameters. From the practical point of view, their results have very little utility. In view of practical utility, we propose a class of...