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GTAP Resource #3587

"Calibrating the Modified An Implicitly Directly Additive Demand System (MAIDADS) for Applied Economic Modeling"
by Itakura, Ken and Dominique van der Mensbrugghe


Abstract
Preckel et al. (2010) extends the consumer demand system developed by Rimmer and Powell (1992) by allowing subsistence consumption quantities to vary along with utility, thereby referred to as Modified An Implicitly Directly Additive Demand System (or MAIDADS). The main objective of this study is to make a good use of this recent study that modified the AIDADS (An Implicitly Directly Additive Demand System). This modified AIDADS (MAIDADS) is able to capture varying consumer behaviors across different expenditure levels and allows minimum consumption quantities to change as utility varies. These features would attract attention from researchers conducting applied economic analysis which involves consumers at wide range of expenditure levels; consumers at developing and developed countries, households at different income levels, and evolution of expenditure patterns over the long-run simulated often under CGE models, e.g. for 50 or 100 years from the benchmark year. The parameters in the MAIDADS are estimated with the 2005 International Comparison Program dataset, and we obtained elasticities as well as the minimum consumption quantities for 147 countries and 12 expenditure categories. With these estimation results, the MAIDADS can be incorporated into applied economic models.


Resource Details (Export Citation) GTAP Keywords
Category: 2011 Conference Paper
Status: Published
By/In: Presented at the 14th Annual Conference on Global Economic Analysis, Venice, Italy
Date: 2011
Version: Preliminary incomplete draft
Created: Itakura, K. (4/15/2011)
Updated: Batta, G. (4/15/2011)
Visits: 2,562
- Calibration and parameter estimation


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