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Autor:innen: 
Erscheinungsjahr: 
1998
Schriftenreihe/Nr.: 
Tübinger Diskussionsbeiträge No. 155
Verlag: 
Eberhard Karls Universität Tübingen, Wirtschaftswissenschaftliche Fakultät, Tübingen
Zusammenfassung: 
This paper investigates the effects of ordinal regressors in linear regression models. Each ordered categorical variable is interpreted as a rough measurement of an underlying continuous variable as it is often done in microeconometrics for the dependent variable. It is shown that using ordinal indicators only leads to correct answers in a few special cases. In most situations, the usual estimators are biased. In order to estimate the parameters of the model consistently, the indirect estimation procedure suggested by Gourieroux et al. (1993) is applied. To demonstrate this method, first a simulation study is performed and then in a second step, two real data sets are used. In the latter case, continuous regressors are transformed into categorical variables to study the behavior of the estimation procedure. In general, the indirect estimators lead to adequate results.
Schlagwörter: 
Microeconometrics
Exogenous Variables with Ordinal Scale
Latent Variables
Indirect Estimation
JEL: 
C2
C4
Persistent Identifier der Erstveröffentlichung: 
Dokumentart: 
Working Paper

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