Change of Scale and Forecasting with the Control-Function Method in Logit Models

Cristian Guevara and Moshe E. Ben-Akiva ()
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Moshe E. Ben-Akiva: Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Transportation Science, 2012, vol. 46, issue 3, 425-437

Abstract: Endogeneity is a model misspecification that precludes the consistent estimation of the model parameters. The control-function method is the most suitable tool to address endogeneity for several discrete choice models that are relevant in transportation research. However, the estimators obtained with the control-function method are consistent only up to a scale. In this paper, we first depict the determinants of this change of scale by adapting an existing result for omitted orthogonal attributes in logit models. Then, we study the problem of forecasting under these circumstances. We show that a procedure proposed in previous literature may lead to significant biases, and we suggest novel alternatives to be used with synthetic populations. We use Monte Carlo experimentation and real data on residential location choice to illustrate these results. The paper finishes by summarizing the findings of this investigation and suggesting future lines of research in this area.

Keywords: endogeneity; discrete choice; control-function; logit; forecasting (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:inm:ortrsc:v:46:y:2012:i:3:p:425-437

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