Hi Stata users,
I am trying to impose concavity into my estimated translog cost
function. The original estimated parameters cannot fulfil the negative
semidefiniteness of the Hessian matrix. Therefore, I am trying to do
some re-paramerization to impose the curvature condition. Has anyone
done the re-paramerization using Stata? or do you know any reference
in this regard?
Thanks
Cheers
--
Dinusha Dharmaratna
Room E867,
Department of Economics,
Faculty of Business and Economics,
Monash University, Clayton Campus
Melbourne,
Victoria
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