Proper efficiency and the theory of vector maximization☆

This research was performed primarily under a grant from the National Science Foundation and a contract with the Office of Naval Research, both administered under the auspices of the Western Management Science Institute. Additional sponsorship was provided by the United States Air Force under Project RAND—Contract No. F44620-67-C-0045—monitored by the Directorate of Operational Requirements and Development Plans, Deputy Chief of Staff, Research and Development Hq USAF. Views or conclusions contained in this Memorandum should not be interpreted as representing the official opinion or policy of the United States Air Force.