β Scribed by A. S. Manne
No coin nor oath required. For personal study only.
This article is intended to yield insights in an exceedingly conjectural area-the timing of development expenditures and the retirement of military equipment. A highly simplified model of the equipment life-cycle is employed, a model in which the timing decisions are supposedly made in such a way as to maximize military effectiveness subject to a fixed budget limitation on the average annual rate of dollar expenditures. The tradeoffs considered here are threefold:
Spending dollars on development in order to obtain new types of equipment.
Spending dollars on procurement in order to obtain useable quantities of the new 3. Spending dollars for the operation of old and comparatively ineffective equipment.
If materiel is to be retired early and new types introduced frequently, then a large types.
fraction of the budget must continually be spent on development, procurement, and training. Conversely, with late retirement and slow development, a large fraction must be spent on the costs of operating superannuated units.
technique devised originally by Terborgh to deal with the problems of industrial equipment replacement. costs-the costs involved in changing over from one state-of-the-art to its successor. The presence of development costs makes it necessary to move in a staircase pattern-to jump from one technology level to the next-instead of continually embracing each new opportunity for improvement. Like the MAPI model, this stems from the ancient doctrine that no new piece of military equipment represents an "ultimate weapon." Instead, each new device constitutes just one more step in man's unending quest to perfect the means of destroying his fellow-men. From Essentially, this model represents an extension to the military sphere of the "MAPI" Unlike the MAPI formulation, this one is explicitly concerned with development
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