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The Stata Journal
Volume 8 Number 4: pp. 554-556



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Demand–system estimation: Update

Brian P. Poi
StataCorp
College Station, TX
bpoi@stata.com
Abstract.   The nlsur command is better suited to demand-system estimation than the suite of ado-files provided in Poi (2002, Stata Journal 2: 403–410) because it is faster and requires only one ancillary ado-file. This article replicates the results presented in Poi (2002) by using nlsur instead of ml.
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