CES related Expenditure Function Marcelo Ochoa Marcelo8a marcelo

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Topic: CES related Expenditure Function
Conf: Chapter 1, Consumer Theory, Msg: 12841
From: Marcelo Ochoa (marcelo_8a@hotmail.com)
Date: 4/4/2003 10:55 AM

CES related Expenditure Function Marcelo Ochoa Marcelo8a marcelo_8a@hotmail.com I tried to prove the quasi concavity of the expenditure function using the bounded hessian. I couldn't come up with the right results. Does anyone know a how to deal with this? Is there an easier way to do this?
How about proving the convexity of the indirect utility function using the CES?
Cheers!