A simple necessary condition for negativity in the almost ideal demand system with the Stone price index

Jonathan Rougier

Applied Economics Letters, 1997, vol. 4, issue 2, 97-99

Abstract: A necessary condition is derived for negativity in the almost ideal demand system (AIDS) when used with the Stone price index. This condition is very simple and can be examined by a t-test on a single equation within the framework of ordinary least squares (OLS) estimation.

Date: 1997
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DOI: 10.1080/758526703

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