This paper considers the Debreu [6] - Farell [10] - Färe [7] measure of efficiency of merger to compare economic efficiencies of alternative merged entities in a homogenous good industry. The comparability results rely on concentration curve dominance relation and identify the class of cost functions for which efficiency ranking the entities becomes unambiguous. The results have been developed under alternative assumptions about the total output and number of firms of the merging subgroups.
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Publisher Info
Paper provided by DELTA (Ecole normale supérieure) in its series DELTA Working Papers with number
98-18.
Length: 16 pages Date of creation: 1998 Date of revision: Publication status: Published in Journal of Economic Theory, vol.82, 1998 Handle: RePEc:del:abcdef:98-18