Industry structural inefficiency and potential gains from mergers and break-ups: A comprehensive approach |
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Authors: | Antonio Peyrache |
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Institution: | Centre for Efficiency and Productivity Analysis (CEPA), School of Economics, The University of Queensland, Australia |
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Abstract: | An efficiency indicator of industry configuration (allowing for entry/exit of firms) is presented which accounts for four sources components: (1) size inefficiencies arising from firms which can be conveniently split into smaller units; (2) efficiency gains realized through merger of firms; (3) re-allocation of inputs and outputs among firms; (4) technical inefficiencies. The indicator and its components are computed using linear and mixed-integer programming (data envelopment analysis models). A method to monitor the evolution of these components in time is introduced. Data on hospitals in Australia show that technical inefficiency of hospitals accounts for less than 15% of total industry inefficiency, with 40% attributable to size inefficiencies and the rest to potential mergers and re-allocation effects. |
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Keywords: | Data envelopment analysis Industry inefficiency Size inefficiency Mergers Break-ups Directional distance function |
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