References
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- Deaton , A. and Muellbauer , J. 1980b . Economics and Consumer Behaviour , Cambridge : Cambridge University Press .
- Gilbert , C. 1991 . “ Do economists test theories? ” . In Appraising Economic Theories , Edited by: de Marchi , E. , Blaug , M. and Elgar , Edward . 137 – 68 . UK : Aldershot .
- Pashardes , P. 1993 . Bias in estimating the almost ideal demand system with the Stone index approximation . Economic Journal , 103 : 908 – 15 .
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