easi (0.2)
EASI Demand System Estimation.
http://cran.r-project.org/web/packages/easi
"easi" is a package for R enabling the estimation of the Exact Affine Stone Index demand system of Pendakur and Lewbel (2009). However, more than just a transcript, it offers a number of extensions in an unified framework. Firstly, it allows to calculate elasticities (income elasticities, price elasticities and demographic elasticities) and their standard deviations. Secondly, it enables the calculation and the graphical representation of Engel curves and their confidence interval. Thirdly, it provides simulation tools to assess the impact of price changes, income changes and demographic changes on fitted budget shares, elasticities, and their standard deviations. Finally, easi allows the computation of equivalent incomes.
Maintainer:
Stephane Hoareau
Author(s): Stephane Hoareau <sjlhoaro@yahoo.fr>, Guy Lacroix, Mirella Hoareau, Luca Tiberti
License: GPL (>= 2.0)
Released 11 months ago.
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