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Use of marginal variable in the objective function

Posted: Thu Sep 03, 2020 5:35 pm
by Ely
I am a new user of Gams and I am trying to enter the marginal costs as a variable within the objective function and multiply it by another variable. The problem is that these marginal costs are the result of minimizing the objective function and I can not find a way to incorporate that output as a variable.

Please someone help me.

Thank you!