Re: Micro doubt.
Posted by
Asd1995 on
Jun 26, 2017; 4:18pm
URL: http://discussion-forum.276.s1.nabble.com/Micro-doubt-tp7606338p7606362.html
So as far as I know hessian is evaluated to find convexity of preferences. Negative semidefinite hessian just implies convex preferences and it has nothing to do with the sign of dD/dT.
I've evaluated it myself in this image, link below : it is negative semidefinite so you may have gone wrong in evaluating it.
http://imgur.com/GMg4YxS