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Utility, or usefulness, is the (perceived) ability of something to satisfy needs or wants.

2 votes
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Utility function with two goods with declining spending share on one good

Finally, it is easy to verify that the utility function exhibits diminishing marginal utility in both goods. …
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3 votes
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Non decreasing function for utility transformation

Since $u(x)$ represents $\succsim$, $\succsim$ must be rational. By completeness, $\neg (x\succsim y) \iff x \prec y$. Therefore, the claim that $$v(x) \geq v(y) \iff x\succsim y, \forall x, y$$ is eq …
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0 votes

Why is incidence not included in social welfare maximization?

In other words, money is "indirectly" valued by the indirect utility function $v(p,m)$. … Therefore, as long as the shape of your utility function is determined, how you value the "incidence" (using your language) is determined. …
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