Two geometric approaches to solving sequencing problems are described and tested. Both methods have yielded optimal or near optimal solutions in problems where the optimal is known. Further, these methods have the advantage of being programmable, with execution in relatively short computation...

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...

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.

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...