Units of Measurement and the 'Stone Index' In Demand System Estimation
The Stone index typically used in estimating linear almost ideal demand systems is not invariant to changes in units of measurement, which may seriously affect the approximation properties of the model. A modification to the Stone index, or use of a regular price index instead, are both desirable practices in estimating linear AI models.
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|Date of creation:||01 Feb 1995|
|Publication status:||Published in American Journal of Agricultural Economics, February 1995, vol. 77 no. 1, pp. 63-68|
|Contact details of provider:|| Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070|
Phone: +1 515.294.6741
Fax: +1 515.294.0221
Web page: http://www.econ.iastate.edu
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