| Article ID: | iaor20042533 |
| Country: | Netherlands |
| Volume: | 146 |
| Issue: | 3 |
| Start Page Number: | 615 |
| End Page Number: | 620 |
| Publication Date: | May 2003 |
| Journal: | European Journal of Operational Research |
| Authors: | Fre Rolf, Zelenyuk Valentin |
| Keywords: | efficiency |
In this paper we establish the fact that an industry maximal revenue is the sum of its firms' maximal revenues. This fact enables us to discover conditions for aggregation of Farrell efficiencies.