The model in this paper is intended to explain the choice of transport made by shippers, as well as their total demand for transportation services. The optimal choice of mode is shown to involve a trade-off among freight rates, speed, dependability (variance in speed) and en-route lossage. It is...

The decomposition procedure for the solution of large scale linear programs is described in an elementary manner with illustrative calculations. Its economic interpretation as a procedure for decentralized decision by the multi-division firm or the multi-sector economy is explained in detail....

Many marketing problems which promise to be amenable to the techniques of operations research have apparently not been subjected to systematic analysis. This article is a first attempt at an analysis of one such area--the number of items stocked by a retailer and its relation to his sales, his...

A new efficiency criterion is proposed for the Markowitz portfolio selection approach. It is shown that the use of standard deviation as a measure of risk in the original Markowitz analysis and elsewhere in economic theory is sometimes unreasonable. An Investment with a relatively high standard...