- #1
noowutah
- 57
- 3
I have a fixed function [itex]U[/itex] and a function [itex]f[/itex]
that I want to know something about, both from
[itex]\mathbb{R}^{n}\rightarrow\mathbb{R}[/itex], for which I know
condition (G) that [itex]U(x)\geq{}U(y)[/itex] implies
[itex]f(x)\geq{}f(y)[/itex]. [itex]f=U[/itex] and [itex]f=x_{0}[/itex]
for any [itex]x_{0}\in{}\mathbb{R}[/itex] trivially fulfill (G). Which
[itex]f[/itex] fulfills (G) non-trivially? Are there additional
assumptions (continuity for example) which would allow me to claim
that there is no [itex]f[/itex] that non-trivially fulfills (G)?
This question will help me solve a set-theoretic puzzle based on
Debreu's theorem -- that's why I've put the thread in this category.
[itex]U[/itex] stands for the utility function, [itex]f[/itex] for a less discriminating
utility function that is not trivially [itex]f=U[/itex] or constant.
that I want to know something about, both from
[itex]\mathbb{R}^{n}\rightarrow\mathbb{R}[/itex], for which I know
condition (G) that [itex]U(x)\geq{}U(y)[/itex] implies
[itex]f(x)\geq{}f(y)[/itex]. [itex]f=U[/itex] and [itex]f=x_{0}[/itex]
for any [itex]x_{0}\in{}\mathbb{R}[/itex] trivially fulfill (G). Which
[itex]f[/itex] fulfills (G) non-trivially? Are there additional
assumptions (continuity for example) which would allow me to claim
that there is no [itex]f[/itex] that non-trivially fulfills (G)?
This question will help me solve a set-theoretic puzzle based on
Debreu's theorem -- that's why I've put the thread in this category.
[itex]U[/itex] stands for the utility function, [itex]f[/itex] for a less discriminating
utility function that is not trivially [itex]f=U[/itex] or constant.