Data Envelopment Analysis (DEA)
"DEA(Data Envelopment Analysis) is the optimization method of
mathematical programming to generalize the Farrell(1957) single-input/
single-output technical efficiency measure to the multiple-input/
multiple-output case by constructing a relative efficiency score as the
ratio of a single virtual output to a single virtual input." DEA has
been used in more than 1,000 articles, books, and dissertations.
This site offers a bibliography (including books and dissertations), a
tutorial and model descriptions, several datasets, a list of people
using DEA tools, a list of courses in DEA, software, information on a
discussion list, and an FAQ.