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Linearizing the inverse quadratic almost ideal demand system
Applied Economics, 2007This article investigates the linear approximation to the inverse quadratic almost ideal demand system (IQUAIDS), a recently introduced flexible functional form with potential usefulness. Linearizing this nonlinear model is of practical importance because nonstationary data, which are likely to be used in inverse demand systems, can be handled more ...
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A dynamic almost ideal demand system incorporating consumer expectations
Managerial and Decision Economics, 1991AbstractIn this paper a theoretical framework is presented for the analysis of the effects of psychological, perceptual or expectational factors on household expenditure within a complete demand system. The model was estimated using the Consumer Sentiment Index, which represents an index of consumer perceptions of economic conditions.
Paul M. Taube, Don N. Macdonald
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Regular Alternatives to the Almost Ideal Demand System
1988While the Almost Ideal Demand System has received increasing attention in empirical studies of consumer demand, the fact that the underlying PIGLOG (and PIGL) cost function is not globally regular has often led to violation of concavity in the estimated Slutsky matrix. This violation typically occurs at many points within the actual sample.
Cooper, Russel J. +3 more
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Estimating and testing an almost ideal demand system
1987Since the introduction of the Almost Ideal Demand System (AIDS) in the seminal paper by Deaton and Muellbauer (1980), few applications of their model have been reported. This may be due partly to the relatively complicated structure of the model and the associated estimation problems but it may also be due to the fact that the simplified versions of ...
S. Georgantelis +2 more
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On Price Indices in the Almost Ideal Demand System
American Journal of Agricultural Economics, 1997AbstractA number of papers have discussed the relationship between the Almost Ideal Demand System (AIDS) and its linear approximation (LA/AIDS). In this paper, it is shown that if the prices in the system are normalized to one, the AIDS and LA/AIDS representations are identical at the point of normalization.
Frank Asche, Cathy R. Wessells
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Negativity in an almost ideal import demand system
Applied Economics, 1994Estimates of demand systems consistent with the underlying theory of a utility-maximizing consumer are necessary if accurate welfare predictions are to be made. In this paper we concentrate upon the negativity constraint and assess its validity using the almost ideal demand system subject to adding up, homogeneity and symmetry applied to detailed trade
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An Almost Ideal Demand System for Housing Attributes
Southern Economic Journal, 1986In recent articles, Mendelsohn [16] and Palmquist [20] use restricted versions of Rosen's [22] model of household behavior to consistently estimate demand functions for attributes of a differentiated product. Rosen's [22] model is of a single market for such a product, and he proposes a two-step technique to estimate attribute demand functions.
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Africa’s outbound tourism: An Almost Ideal Demand System perspective
Annals of Tourism Research, 2018Abstract While African outbound tourism represents 3% of international tourism, the continent is experiencing high economic growth rates, contributing to a fast-growing middle-class and a large potential market for international travel. This article analyses African outbound travel to all other continents from an Almost Ideal Demand System (AIDS ...
Andrea Saayman +2 more
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Gaids: a generalised version of the almost ideal demand system
Economics Letters, 1987Abstract AIDS is a popular model in empirical demand literature. In this paper a generalised version of AIDS (GAIDS) is presented, estimated and statistically tested. Evidence from Italian household data suggests rejection of AIDS, also when demographic effects are considered.
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Estimation of meat demand system in Jordan: an almost ideal demand system
International Journal of Consumer Studies, 2005AbstractThis paper reports the results of the estimation of a linear approximate almost ideal demand system for Jordan meat demand using cross‐sectional data collected by the Department of Statistics in Jordan as part of the household expenditure survey.
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