The ability of the South African government to provide antiretroviral medication to those in need will be determined by the ability of the public health services sector to efficiently provide that medication. If the delivery of other health services can be used as a guide, the goals of the...

The study applies an augmented gravity equation to South Africa's exports of motor vehicles, parts & accessories (SIC 381-383) to 76 countries over the period 1994 to 2003. The study employs a dynamic panel data model to estimate long-run and short-run coefficients. First, it is shown that it...

We address two problems of traditional cost functions: the discontinuity caused by the production capacity (the marginal cost abruptly becomes infinite when production capacity is reached) and the production capacity is artificially exogenous. So, we introduce a smoothed form of marginal cost...

In this paper, we propose a new original method to solve the production cost minimization problem with Cobb-Douglas production function by using the weighted arithmetic-geometric-mean inequality (weighted AM-GM inequality). Instead of using derivatives or the Lagrange multiplier method, the...

In the classical theory of monotone equimeasurable rearrangements of functions, “equimeasurability” (i.e. the fact the two functions have the same distribution) is defined relative to a given additive probability measure. These rearrangement tools have been successfully used in many problems...

The paper analyses the nature of the achievement possibility frontier between research and teaching quality in higher education under a system of quality evaluation by reference to discrete quality grades. It finds several important reasons why the associated feasible set is likely to be...

The main aim of this paper is to derive the mathematical formulation to device an optimal purchasing policy for the service providing agency. An attempt has been made to maximize the output function of an agency subject to a nonlinear budget constraint by assuming that the agency gets price...

The main aim of this paper is to derive the mathematical formulation to device an optimal purchasing policy for the service providing agency. An attempt has been made to maximize the output function of an agency subject to a nonlinear budget constraint by assuming that the agency gets price...

Se establece un modelo que describe la movilidad interna y externa a nivel provincial de la población ecuatoriana, considerando su autoidentificación étnica (indígena y no indígena). El estudio utiliza las cadenas de Markov; para desarrollar el modelo estocástico, se han tomado como base...