Weak separability and the estimation of elasticities in multistage demand systems
Edgerton, D.L.
American Journal of Agricultural Economics 79(1): 62-79
1997
ISSN/ISBN: 0002-9092
DOI: 10.2307/1243943
Accession: 003012862
The necessary conditions for multistage budgeting to be at least approximately justified are reviewed, and the plausibility of these assumptions (weak separability and low variability of price indices with utility level) are discussed. Using no further assumptions, simple relationships between expenditure and price elasticities in different budgeting levels are derived.