Fractional Response Models - A Replication Exercise of Papke and Wooldridge (1996)

Contemporary Economics, Vol. 6, No. 3, pp. 56-64, 2012

10 Pages Posted: 24 Nov 2012

See all articles by Harald Oberhofer

Harald Oberhofer

Vienna University of Economics and Business - Department of Economics; Austrian Institute of Economic Research (WIFO)

Michael Pfaffermayr

University of Innsbruck - Department of Economics; Austrian Institute of Economic Research

Date Written: 2012

Abstract

This paper replicates the estimates of a fractional response model for share data reported in the seminal paper of Leslie E. Papke and Jeffrey M. Wooldridge published in the Journal of Applied Econometrics 11(6), 1996, pp.619-632. We have been able to replicate all of the reported estimation results concerning the determinants of employee participation rates in 401(k) pension plans using the standard routines provided in Stata. As an alternative, we estimate a two-part model that is capable of coping with the excessive number of boundary values equalling one in the data. The estimated marginal effects are similar to those derived in the paper. A small-scale Monte Carlo simulation exercise suggests that the RESET tests proposed by Papke and Wooldridge in their robust form are useful for detecting neglected non-linearities in small samples.

Keywords: replication exercise, fractional response models, two-part models, Monte Carlo simulation

JEL Classification: C15, C21

Suggested Citation

Oberhofer, Harald and Pfaffermayr, Michael, Fractional Response Models - A Replication Exercise of Papke and Wooldridge (1996) (2012). Contemporary Economics, Vol. 6, No. 3, pp. 56-64, 2012, Available at SSRN: https://ssrn.com/abstract=2179865

Harald Oberhofer (Contact Author)

Vienna University of Economics and Business - Department of Economics ( email )

Welthandelsplatz 1
A-1020 Vienna
Austria

Austrian Institute of Economic Research (WIFO) ( email )

P.O. Box 91
Wien, A-1103
Austria

Michael Pfaffermayr

University of Innsbruck - Department of Economics ( email )

Universitaetsstrasse 15
A-6020, Innsbruck
Austria
+43 512 507 7359 (Phone)

HOME PAGE: http://homepage.uibk.ac.at/~c43236/

Austrian Institute of Economic Research ( email )

P.O. Box 91
Wien, A-1103
Austria
+43 1 798 26 01-253 (Phone)
+43 1 798 93 86 (Fax)

HOME PAGE: http://www.wifo.ac.at/Michael.Pfaffermayr/

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