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Sources of Weapon System Cost Growth is written by Joseph G. Bolten and published by Rand Corporation. It's available with International Standard Book Number or ISBN identification 0833045245 (ISBN 10) and 9780833045249 (ISBN 13).
This analysis uses data from Selected Acquisition Reports to determine the causes of cost growth in 35 mature major defense acquisition programs. Four major sources of growth are identified: (1) errors in estimation and scheduling, (2) decisions by the government, (3) financial matters, and (4) miscellaneous. The analysis shows that more than two-thirds of cost growth (measured as simple averages) is caused by decisions, most of which involve quantity changes, requirements growth, and schedule changes.