Capacity Utilization in a Generalized Malmquist Index Including Environmental Factors: A Decomposition Analysis

Torstein Bye, Annegrete Bruvoll and Jan Larsson


Productivity measures ignoring environmental effects may give misleading information on total productivity growth. Further, business cycles in the form of capacity utilization may significantly influence productivity measures. We develop an overall Malmquist productivity index and decompose changing efficiency rates into a contribution from environmental factors, capital, and capacity utilization. Our new combined capacity utilization element contributes to the literature in that it also takes into account the restriction for producing negative externalities. Empirical applications illustrate that the choice of inputs influences the overall productivity measure and its decomposition into efficiency changes and technical changes, and the capacity utilization element. (JEL C14, O12)

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