Special Types of Input and Output Factors
The DEA methodology concerns the efficiency measurement of production systems that apply multiple inputs to produce multiple outputs. Under normal conditions, it is desirable to have less input consumed and more output produced, because this leads to higher efficiencies. With regard to inefficient DMUs, improvement targets can be obtained to make them more efficient. However, there are cases in which the decision maker has no control over the input and output factors, in that the amounts of some factors cannot be adjusted at the discretion of the decision maker. The conventional DEA models introduced in the preceding chapters are either unable to handle or will produce misleading results for these cases. This chapter discusses two of the cases, non-discretionary and undesirable factors.
KeywordsUndesirable Output Output Factor Aggregate Output Desirable Output Efficient DMUs
- Jahanshahloo GR, Lotfi FH, Shoja N, Abri AG, Jelodar MF, Firouzabadi KJ (2010) Proposing a new model on data envelopment analysis by considering non discretionary factors and a review on previous models. Math Comput Appl 15:344–353Google Scholar
- Koopmans TC (1951) Analysis of production as an efficient combination of activities. In: Koopmans TC (ed) Activity analysis of production and allocation. Wiley, New York, pp 33–97Google Scholar