Gstach, Dieter
(1998)
Technical efficiency in noisy multi-output settings.
Department of Economics Working Paper Series, 59.
Inst. für Volkswirtschaftstheorie und -politik, WU Vienna University of Economics and Business, Vienna.
Abstract
This paper surveys four distinct approaches to frontier estimation of multi-output (and simultaneously multi-input) technologies, when nothing but noisy quantity data are available. Parametrized distributions for inefficiency and noise are necessary for identification of inefficiency, when only cross-sectional data are available. In other respects suitable techniques may differ widely, as is shown. A final technique presented rigorously exploits the possibilities from panel-data by dropping parametrization of distributions as well as functional forms. It is illustrated how this last technique can be coupled with the others to provide a state-of-the-art estimation procedure for this setting. (author's abstract)
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