st: Poi's QUAIDS code

["Ryan D. Edwards" <redwards@hsph.harvard.edu>]

Has anyone successfully tinkered with Brian Poi's QUAIDS code to change 
the number of commodities?  ("help demand" if installed)

You obviously have to change the global NEQN, and the arguments passed to 
lnl_quaids.ado must expand or contract.  These can be done in quaids.do. 
But it looks to me, and Brian suggested as much in SJ 2-4, that 
quaids_delta.do, which computes the covariance matrix, must also change. 
Based on what he wrote and the code, it's probably matrix `g'.  But I'm 
not sure how that derives, so I have no idea how to proceed.

Ryan D. Edwards, Ph.D.
redwards@hsph.harvard.edu
Postdoctoral Fellow in the Study of Aging, RAND Corporation
 and Visiting Scientist, 2004-2005
Department of Population and International Health
Harvard School of Public Health

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