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Linear vs. log-linear unit-root specification: an application of mis-specification encompassing

Spanos, A., Hendry, D. F. and James Reade, J. (2008) Linear vs. log-linear unit-root specification: an application of mis-specification encompassing. Oxford Bulletin of Economics and Statistics, 70 (s1). pp. 829-847. ISSN 1468-0084

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To link to this item DOI: 10.1111/j.1468-0084.2008.00532.x

Abstract/Summary

The objective of this paper is to apply the mis-specification (M-S) encompassing perspective to the problem of choosing between linear and log-linear unit-root models. A simple M-S encompassing test, based on an auxiliary regression stemming from the conditional second moment, is proposed and its empirical size and power are investigated using Monte Carlo simulations. It is shown that by focusing on the conditional process the sampling distributions of the relevant statistics are well behaved under both the null and alternative hypotheses. The proposed M-S encompassing test is illustrated using US total disposable income quarterly data.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Arts, Humanities and Social Science > School of Politics, Economics and International Relations > Economics
ID Code:34873
Publisher:Blackwell Publishing Ltd

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