Re: st: Not concave in xtfrontier

["Scott Merryman" <scott.merryman@gmail.com>]

Vinish,

Try using -frontier- not -xtfrontier- with firm and time dummy variables.

Scott


On 7/13/07, vinish kathuria <vinish67@yahoo.com> wrote:
> Thanks scott!
> I tried a different specification - not in first
> differencing:
> xtfrontier lnY/L lnK/L Foreign_dmy, tvd
>
> Still for large number of sectors (16 out of total
> 26), the model is not coverging.
>
> I tried using xtpcse command to get initial values.
> Still it is not converging.
>
> Any further suggestion!
>
> Thanks!
>
> Vinish
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