Programming the statistical procedures from SAS

Frontier with QLIM

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Contributor
Posts: 39

Frontier with QLIM

Hi All,

I am trying to estimate a stochastic cost frontier model by using qlim with
the option endogenous ~ frontier (type=half cost).
But it gives me error saying: Syntax error, expecting one of the following: CENSORED, DISCRETE, SELECT, TRUNCATED.

ERROR 200-322: The symbol is not recognized and will be ignored.

ERROR 202-322: The option or parameter is not recognized and will be ignored.

...

I have SAS 9.1. Can anyone tell me what I am doing wrong.

Thanks much.
Valued Guide
Posts: 2,108

Re: Frontier with QLIM

CD2011,

You will get answers that are a lot more useful if you post the entire PROC step. The error may not be where you think it is.

Doc Muhlbaier
Duke
Valued Guide
Posts: 2,108

Re: Frontier with QLIM

Also, you should check the documentation for your version of SAS. For instance, FRONTIER was not an option for SAS 9.1. It was added sometime in SAS 9.2.
Contributor
Posts: 39

Re: Frontier with QLIM

Thanks for your response Doc.

I did some search and I also found out that frontier was coming under SAS 9.2. But, I wanted to be sure.

Thanks much.
Contributor
Posts: 39

Re: Frontier with QLIM

BTW, does anyone know if it is possible to model heteroscedasticity in frontier model with proc qlim?

Thanks,
Occasional Contributor
Posts: 10

Re: Frontier with QLIM

Hi all,

does anybody know how to get the output of the predicted individual technical efficiency with the qlim procedure?
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