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Short- and long-run plant capacity notions: Definitions and comparison

Abstract : Starting from the existing input- and output-oriented plant capacity measures, this contribution proposes new long-run input- and output-oriented plant capacity measures. While the former leave fixed inputs unchanged, the latter allow for changes in all input dimensions to gauge either a maximal plant capacity output or a minimal input combination at which non-zero production starts. We also establish a formal relation between the existing short-run and the new long-run plant capacity measures. Furthermore, for a standard nonparametric frontier technology, all linear programs as well as their variations are specified to compute all efficiency measures defining these short- and long-run plant capacity concepts. Furthermore, it is shown how the new long run plant capacity measures are identical to existing models of a variable returns to scale technology without inputs or without outputs: thus, we offer an interesting production economic justification for these models. Finally, we numerically illustrate this basic relationship between these short-run and long-run technical concepts of capacity utilisation and provide an empirical application.
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Giovanni Cesaroni, Kristiaan Kerstens, Ignace van de Woestyne. Short- and long-run plant capacity notions: Definitions and comparison. European Journal of Operational Research, Elsevier, 2019, 275 (1), pp.387-397. ⟨10.1016/j.ejor.2018.11.023⟩. ⟨hal-02108470⟩



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