Discussion Papers no. 342

Evidence from manufacturing industries

Parametric aggregation of random coefficient Cobb-Douglas production functions

A panel data study of parametric aggregation of a production function is presented. A four-factor Cobb-Douglas function with random and jointly normal coefficients and jointly log-normal inputs is used. Since, if the number of micro units is not too small and certain regularity conditions are met, aggregates expressed as arithmetic means can be associated with expectations, we consider conditions ensuring the existence and stability of relationships between expected inputs and expected output and discuss their properties. Existence conditions for and relationships between higher-order moments are considered. An empirical implementation based on panel data for two manufacturing industries gives decomposition and simulation results for expected output and estimates of the aggregate parameters. Illustrations of approximation procedures and aggregation errors are also given.

Om publikasjonen

Tittel

Parametric aggregation of random coefficient Cobb-Douglas production functions. Evidence from manufacturing industries

Ansvarlige

Erik Biørn, Knut Reidar Wangen, Terje Skjerpen

Serie og -nummer

Discussion Papers no. 342

Utgiver

Statistics Norway

Emne

Discussion Papers

Antall sider

46

Målform

Engelsk

Om Discussion Papers

Discussion papers comprise research papers intended for international journals and books. A preprint of a Discussion Paper may be longer and more elaborate than a standard journal article as it may include intermediate calculations, background material etc.

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