[Couenne] Problems with couenne

[Taher kahil]

Hello:

I'm a Ph.D student in economics. I'm using the couenne solver through GAMS
software to solve a large scale river basin model, that includes a
piece-wise linear function.

My question is: I find an optimal solution to my problem, but I can't see
the marginal values of the resources. These values are very important for
my study. Is couenne solver not able to find marginal values due to its
solution procedure or it could be a problem in my model structure?

I appreciate a lot your help.

Looking forward to hearing from you.

Taher
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