Re: st: problems with installing the quaids command

[solafem7@yahoo.co.uk]

Dear All,
I just write to thank Dr Poi for the training he gave me on how to use quaids command and also attest his position that " you will no longer need to write a program using -nlsur- to fit an AIDS or QUAIDS model.  Just specify your expenditure share, price, and optional demographic variables, and it does the rest.  Post-estimation commands compute elasticities automatically." I have been using it and it is working for me perfectly. The forthcoming Stata Jounal paper on this by Dr Poi is must to those who is interested in how use quaids command to solve demand system.
Regards.
Sola.
 
Sent from my BlackBerry wireless device from MTN

-----Original Message-----
From: "Brian P. Poi" <bpoi@stata.com>
Sender: owner-statalist@hsphsun2.harvard.edu
Date: Fri, 31 Aug 2012 12:08:20 
To: <statalist@hsphsun2.harvard.edu>
Reply-To: statalist@hsphsun2.harvard.eduSubject: Re: st: problems with installing the quaids command


On 08/31/2012 11:53 AM, Nick Cox wrote:
> Brian Poi of StataCorp is a member of Statalist and can no doubt
> comment definitively, but a short provisional guess is that you cannot
> run -quaids-, whatever it is precisely, because you have not installed
> it from wherever it is published. This command, if it is one, is not
> part of official Stata and must be installed on your machine before
> you can run it.
>
> Nick
>
> On Fri, Aug 31, 2012 at 5:20 PM, Khalida Akhtar Choudhury
> <310543@soas.ac.uk>  wrote:
>
>> Everytime I try to run the quaids command, recently published by poi,
>> or maybe is still in the process of being published, I get the error
>> message quaids, unrecognised command quaids. I am using stata 12,
>> nevertheless i still have this problem.
> *


-quaids- is a user-written command that accompanies a forthcoming Stata Journal article I have written.  The good news for users who fit demand systems is that you will no longer need to write a program using -nlsur- to fit an AIDS or QUAIDS model.  Just specify your expenditure share, price, and optional demographic variables, and it does the rest.  Post-estimation commands compute elasticities automatically.

I had previously been in correspondence with Khalida regarding demand systems and sent a preliminary version of the command for Khalida to try.  I have just followed up with a private message to help Khalida get it running, as it is not yet available for download via the -net- commands.

    -- Brian Poi
    -- bpoi@stata.com
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