positive mathematical programming

Problems with modeling
Post Reply
fermar
User
User
Posts: 7
Joined: 6 years ago

positive mathematical programming

Post by fermar »

Hi all, I'm building an agricultural sector model. Calibration is via positive mathematical programming. For the construction of the slope and intercept of the cost function I get the marginal values of the calibration constraint. But these are negative! Any hints why this may be the case?
Thanks!
User avatar
dirkse
Moderator
Moderator
Posts: 214
Joined: 7 years ago
Location: Fairfax, VA

Re: positive mathematical programming

Post by dirkse »

Hello,

Marginal values are frequently negative. If we exclude the zero marginal values, I suppose marginals are negative about half the time.

Why do you find it surprising that your marginals are negative?

-Steve
Post Reply