The gamma and beta functions have been generalized in several ways. The multivariate beta and multivariate gamma functions due to Ingham and Siegel have been defined as integrals having the integrand as a scalar function of the real symmetric matrix. In this article, we define extended matrix...

A new presentation of the specific factors model shows how labor fares under international trade by considering how the price elasticity of the nominal wage rate responds to the terms of trade as well as factor endowments. Gains to labor are decomposed into measurable terms of trade effects and...

In this paper, we provide a general definition of the Leimkuhler curve in terms of the theoretical cumulative distribution function. The definition applies to discrete, continuous and mixed random variables. Several examples are given to illustrate the use of the formula.