Redistricting, the redrawing of congressional district boundaries within the states, may occur every 10 years on the basis of the population census. Many redistricting plans are designed with partisan politics in mind, resulting in disputes and forcing judges to intervene. We address this...

The airport terminal capacity planning problem deals with determining the optimal design and expansion capacities for different areas of the terminal in the presence of uncertainty with regards to future demand levels and expansion costs. Analytical modeling of passenger flow in airport...

Erratum to Mairs, Thomas G., Glenn W. Wakefield, Ellis L. Johnson, Kurt Spielberg. 1978. On a production allocation and distribution problem. Management Sci. 24 (November).

We describe a production allocation problem which was worked on at Frito-Lay and an integer programming model formulated for its solution. In connection with model formulation, we discuss estimation and collection of the required cost coefficients. Finally, we report on the use of two different...

A multi-item inventory system with periodic review, single set-up cost K plus linear ordering cost c for changing stock levels, and holding and shortage cost l(x) for being in stock position x at the beginning of a period is considered. Demand in any period is assumed to be \xi with probability...

For the infinite horizon, single item inventory problem, assume an ordering cost M(i) + K(j) for changing the stock level from i to j (for example, M(i) + K(j) - c \cdot (j - i) + K), a holding plus shortage cost l(j), and a probability \varphi (j, k) of demand j - k when the stock level is j....

Airlines are continually faced with the challenge of efficient utilization of their cockpit crew resources. In addition to regular flying crews, airlines maintain significant reserve staffing levels to meet contractual obligations and provide smooth daily operations. Most airlines also depend on...

Project portfolio management deals with the dynamic selection of research and development (R&D) projects and determination of resource allocations to these projects over a planning period. Given the uncertainties and resource limitations over the planning period, the objective is to maximize the...