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Title: Heterogeneity unobserved and efficiency: a latent class model for west coast of South Pacific port terminals
Authors: Chang, Victor
Tovar, Beatriz 
UNESCO Clasification: 531212 Transportes y comunicaciones
Keywords: Frontier Production Function
Technical Inefficiency
Issue Date: 2017
Publisher: 0022-5258
Journal: Journal of Transport Economics and Policy 
Abstract: We measure the technical efficiency of Peruvian and Chilean port terminals by taking into account the existence of unobserved heterogeneity within the sample. We follow a Latent Class Stochastic Frontier Model (LCSFM), in order to account for possible technological differences among terminals. We will also identify whether a successful reform process has contributed to attracting investment that has rapidly expanded the infrastructure and new technology. The results of this paper show that LCSFM, with two classes, fits the unobserved heterogeneity better than the four Standard Stochastic Frontier Models (SSFMs) that we used as alternatives.
ISSN: 0022-5258
Source: Journal of Transport Economics and Policy[ISSN 0022-5258],v. 51, p. 139-156
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