F?re R, R Grabowski, S Grosskopf and S Kraft (1997). “Efficiency of a Fixed but Allocatable Input: A Non-Parametric Approach.” Economics Letters 56(2): 187-193.

F?re R, R Grabowski, S Grosskopf and S Kraft (1997). “Efficiency of a Fixed but Allocatable Input: A Non-Parametric Approach.” Economics Letters 56(2): 187-193.

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