easi: EASI Demand System Estimation

"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.

Version: 0.2
Depends: systemfit, stats, micEcon
Published: 2012-07-04
Author: Stephane Hoareau, Guy Lacroix, Mirella Hoareau, Luca Tiberti
Maintainer: Stephane Hoareau <sjlhoaro at yahoo.fr>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2.0)]
NeedsCompilation: no
CRAN checks: easi results

Downloads:

Reference manual: easi.pdf
Vignettes: Exact Affine Stone Index Demand System in \proglang{R: The \pkg{easi} Package}
Package source: easi_0.2.tar.gz
OS X binary: easi_0.2.tgz
Windows binary: easi_0.2.zip