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On twice differentiable direct and indirect utility functions and the monotonicity of the demand |
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| Abstract: | This article investigates the relationships between the Hessians of the direct and indirect utility function and the Jacobian of the demand correspondence. The monotonicity of the demand is analysed thanks to the convexity indices of the function and the monotonicity index of the demand. |
| Keywords: | consumer theory direct and indirect utility functions demand theory generalized convexity generalized monotonicity |