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Modelling category inflation with multiple inflation processes: Estimation, specification, and testing

journal contribution
posted on 07.04.2020 by Sarah Brown, Mark Harris, Christopher Spencer
Zero-inflated ordered probit (ZIOP) and middle-inflated ordered probit (MIOP) models are finding increasing favour in the discrete choice literature. We propose generalisations to these models which collapse to their ZIOP/MIOP counterparts under a set of simple parameter restrictions with respect to the inflation process. These generalisations form the basis of a new specification test of the inflation process in ZIOP and MIOP models. Support for our generalisation framework is principally demonstrated by revisiting a key ZIOP application from the economics literature, and reinforced by the reassessment of an important MIOP application from political science. Our specification test supports the generalised models over the original ZIOP/MIOP ones, suggesting an important role for it in modelling zero and middle-inflation processes.

Funding

Australian Research Council

History

School

  • Business and Economics

Department

  • Economics

Published in

Oxford Bulletin of Economics and Statistics

Publisher

Wiley

Version

AM (Accepted Manuscript)

Rights holder

© The Department of Economics, University of Oxford and John Wiley & Sons Ltd

Publisher statement

This is the peer reviewed version of the following article: Brown, S., Harris, M.N. and Spencer, C. (2020), Modelling Category Inflation with Multiple Inflation Processes: Estimation, Specification and Testing. Oxford Bulletin of Economics and Statistics, doi:10.1111/obes.12366, which has been published in final form at https://doi.org/10.1111/obes.12366. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

Acceptance date

27/02/2020

Publication date

2020-05-05

Copyright date

2020

ISSN

0305-9049

eISSN

1468-0084

Language

en

Depositor

Dr Christopher Spencer . Deposit date: 6 April 2020

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