Multiyear Procurement (MYP) and Block Buy Contracting in Defense Acquisition: Background and Issues for Congress
http://www.fas.org/sgp/crs/natsec/R41909.pdf
Discusses special contracting mechanisms that the Defense Department is allowed to use for a limited number of acquisition programs and whether more such exceptions to regular contracting procedures should be allowed in the interest of saving money. From the Congressional Research Service, posted by the Federation of American Scientists