Frei, Frances; Harker, Patrick - In: Journal of Productivity Analysis 11 (1999) 3, pp. 275-300
Data Envelopment Analysis (DEA) has been widely studied in the literature since its inception in 1978. The methodology behind the classical DEA, the oriented method, is to hold inputs (outputs) constant and to determine how much of an improvement in the output (input) dimensions is necessary in...