R packages - Mar 2008 - Packages micEcon, sampleSelection, and maxLik

Dear R Users:

We have splitted up the micEcon package into three packages:

a) Package "maxLik" provides tools for maximum likelihood estimations 
(see http://www.maxLik.org).

b) Package "sampleSelection" provides tools for estimating
Heckman-type sample
selection/generalized tobit models (see http://www.sampleSelection.org).

c) Package "micEcon" contains the remainder, i.e. mainly tools for 
microeconomic demand and firm models, e.g. estimating the "Almost Ideal 
Demand System" or the "Symmetric Normalized Quadratic" /
"Symmetric
Generalized McFadden" profit function (see http://www.micEcon.org).

All these packages are available for download from CRAN and from their 
websites (see above).

Any comments and suggestions on these packages are welcome!
Ott & Arne

-- 
Arne Henningsen
Department of Agricultural Economics
University of Kiel
Olshausenstr. 40
D-24098 Kiel (Germany)
Tel: +49-431-880 4445
Fax: +49-431-880 1397
ahenningsen at agric-econ.uni-kiel.de
http://www.uni-kiel.de/agrarpol/ahenningsen/

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