Investigating the impact of endogeneity on inefficiency estimates in the application of stochastic frontier analysis to nursing homes

Ryan Mutter (), William Greene, William Spector (), Michael Rosko () and Dana Mukamel ()

Journal of Productivity Analysis, 2013, vol. 39, issue 2, 110 pages

Abstract: This paper examines the impact of an endogenous cost function variable on the inefficiency estimates generated by stochastic frontier analysis (SFA). The specific variable of interest in this application is endogenous quality in nursing homes. We simulate a dataset based on the characteristics of for-profit nursing homes in California, which we use to assess the impact on SFA-generated inefficiency estimates of an endogenous regressor under a variety of scenarios, including variations in the strength and direction of the endogeneity and whether the correlation is with the random noise or the inefficiency residual component of the error term. We compare each of these cases when quality is included and excluded from the cost equation. We provide evidence of the impact of endogeneity on inefficiency estimates yielded by SFA under these various scenarios and when the endogenous regressor is included and excluded from the model. Copyright Springer Science+Business Media, LLC (outside the USA) 2013

Keywords: Stochastic frontier analysis; Endogeneity; Efficiency; Quality; Nursing homes; C13; C15; I12 (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (36)

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Persistent link: https://EconPapers.repec.org/RePEc:kap:jproda:v:39:y:2013:i:2:p:101-110

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DOI: 10.1007/s11123-012-0277-z

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