The purpose of this brief comment is to provide some empirical data to support the relevance of the theoretical arguments put forward in Donald Hausch's paper (Hausch, Donald B. 1986. Multi-object auctions: sequential vs. simultaneous sales. Management Sci. 32.). There are two different kinds of...

In this paper we present an algorithm for solving mathematical programming problems of the form: Find x - (x₁,..., x_n) to minimize \sum \varphi _i(x_i) subject to x \in G and l < x < L. Each \varphi _i is assumed to be lower semicontinuous, possibly nonconvex, and G is assumed to be closed. The algorithm is of the...</x>

This paper presents an algorithm for determining the minimum cost schedule of tasks in a critical path network in which task cost-time curves may be concave. A computer program for the case of cost-time curves that are piecewise linear in two segments is described, and a numerical example is...

The computation of economic equilibria, given specific supply and demand functions, is a well-established problem normally treated by fixed point methods or other iterative schemes which converge to a point satisfying the equilibrium criteria. In cases where there are several points which...