A Note on the Use of a Logarithmic Time Trend

Geof Watts and John Quiggin

Review of Marketing and Agricultural Economics, 1984, vol. 52, issue 02, 9

Abstract: It is shown that parameter estimates in a regression with a logarithmic time trend are not invariant to the choice of the starting point of that time trend. Possible solutions to this problem are discussed and applied to data from a recent article in this Review where a logarithmic time trend was included. It is suggested that the appropriate course is either to estimate the starting date directly or to adopt a functional form invariant to the choice of starting date.

Keywords: Research; Methods/; Statistical; Methods (search for similar items in EconPapers)
Date: 1984
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:ags:remaae:12259

DOI: 10.22004/ag.econ.12259

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