Some management science models require estimates of distances between points in a road network based on the point coordinates. This paper evaluates the accuracy of a range of reasonable forms for distance estimating functions using samples of urban and rural road distances. The intent is to...

We consider a market economy that is composed of separate regions, each endowed with linear supply and demand curves and represented as a point on a transportation network. The problem addressed is to determine an equilibrium price in each region so that regional price differences do not exceed...

Some important conceptual problems concerning the application of chance constrained programming (CCP) to risky practical decision problems are discussed by comparing CCP to stochastic programming with recourse (SPR). We expand on Garstka's distinction between mathematical equivalence and...

Shift and days-off scheduling problems have received much attention in the literature of integer programming approaches to workforce scheduling. A typical managerial use would be to schedule full-time employees to minimize the number of labor hours while satisfying variable workforce...

We show in this reply that the response by Charnes and Cooper to our paper is aimed at an issue that is only tangential to our analysis and does not affect our conclusions.

Traditionally, corporate planning was, and sometimes still is, a curious blend of aspiration, perspiration, and inspiration. In this age of Future Shock these virtues are admirable but not sufficient. Nor do simple trend projections deal effectively with external conditions related to consumer...