Quantifying the Effect of Gst on Inflation in Australia's Capital Cities: An Intervention Analysis

Posted: 17 Apr 2005

See all articles by Abbas Valadkhani

Abbas Valadkhani

University of Wollongong - School of Economics and Information Systems

Allan P. Layton

Queensland University of Technology - School of Economics and Finance

Abstract

This article examines the magnitude and duration of the effect of the Goods and Services Tax (GST) on inflation in Australia's eight capital cities using the Box and Tiao intervention analysis and quarterly data spanning from 1948:4 to 2003:1. We found that the GST had a significant but transitory impact on inflation only in the September quarter of 2000 when this new tax system was implemented. In this quarter inflation showed an additional increase of 2.6 per cent in Sydney (minimum effect) and 2.8 per cent in Australia as a whole, and the figure for Hobart was 3.3 per cent (maximum effect). Based on Wald test results, we also found some evidence that there is no significant (or substantial) difference in the average price changes among capital cities. We could not reject the null hypothesis that the GST increased the consumer price index by 2.8 per cent across the board in various cities. These results are also consistent with previous studies and surveys.

Keywords: Intervention Analysis, State and Local Taxation, Australia

JEL Classification: C22, E31, H71, C22

Suggested Citation

Valadkhani, Abbas and Layton, Allan P., Quantifying the Effect of Gst on Inflation in Australia's Capital Cities: An Intervention Analysis. Available at SSRN: https://ssrn.com/abstract=694963

Abbas Valadkhani (Contact Author)

University of Wollongong - School of Economics and Information Systems ( email )

Northfields Avenue
Wollongong, New South Wales 2522
Australia

Allan P. Layton

Queensland University of Technology - School of Economics and Finance ( email )

GPO Box 2434
2 George Street
Brisbane, Queensland 4001
Australia
61 7 38642947 (Phone)
61 7 38644150 (Fax)

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