Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 407152
Title Adjustment and unobserved heterogeneity in dynamic stochastic frontier models
Author(s) Emvalomatis, G.
Source Journal of Productivity Analysis 37 (2012)1. - ISSN 0895-562X - p. 7 - 16.
Department(s) Business Economics
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) panel-data - technical inefficiency - efficiency estimation - bayes factors - time-series
Abstract Stochastic frontier models with autocorrelated inefficiency have been proposed in the past as a way of addressing the issue of temporal variation in firm-level efficiency scores. They are justified using an underlying model of dynamic firm behavior. In this paper we argue that these models could have radically different implications for the expected long-run efficiency scores in the presence of unobserved heterogeneity. The possibility of accounting for unobserved heterogeneity is explored. Random- and correlated random-effects dynamic stochastic frontier models are proposed and applied to a panel of US electric utilities
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