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On the number of categories in an ordered regression model |
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| Authors: | Philip Hans Franses JS Cramer |
| Institution: | Econometric Institute, Erasmus School of Economics, PO Box 1738, NL-3000 DR Rotterdam, The Netherlands; Tinbergen Institute, University of Amsterdam, Roetersstraat, 101 SWB Amsterdam, The Netherlands |
| Abstract: | We show that there is no formal statistical testing method to support combining categories in a standard ordered regression model. We discuss practical implications of this result. |
| Keywords: | ordered regression model number of categories |