# Questions tagged [expected-utility]

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### Is the expected utility the inverse of the utility function?

Can somebody explain to me if that it's true and also graphically explain it?
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I was wondering why at first they do this equation to obtain the premium: Premium= Value-Expeceted value When the risk premium is : Expected value- inverse of the utility function. Can someone explain ...
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### Who is the first one to equate “rational” with “complete and transitive preference”?

MWG taught that, suppose that the menu is finite, "rational" is the same as "complete and transitive". But it seems that it does not cite any sources. Who said this first? vNM said ...
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### Need help with Wakker (2010) on arbitrage

In Prospect Theory (2010; Cambridge UP), Peter P. Wakker has an exercise assignment 3.3.6 without solution in the book and I'm really unsure about this one. The exercise states on pages 76-77: ...
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### Check if a utility function represents a monotone preference

Given a function $u(x_1, x_2) = x_1 +x_2 + \min(2x_1, x_2)$, how do we mathematically prove that it monotonic or not? Is there is a general algebraic technique to show monotonicity of suchlike ...
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### Numerical Backward Induction Optimal portfolio choice

I am currently considering a simple life-cycle problem. We consider a market with equity risk only, which follows a geometric Brownian motion. We seek to maximize the terminal wealth of a CRRA utility ...
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### Should the “value function” be “utility function” in prospect theory?

I have a background in mathematics rather than economics, and currently reading Choices, Values, and Frames. The paper defines a "hypothetical value function" (the s-shape that is concave ...
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### Calculating risk interest rate within a two period model

I am trying to calculate how to determine the interest rate ( = risk free rate + premium) within the following model where a consumer decides to invest in a safe asset or in a risky asset. The utility ...
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### Fair value that a risk averse individual would pay to enter a gamble

Introduction Assuming an individual (or corporation) with risk aversion and a von Neumann-Morgenstern utility curve and given a gamble g with E(g) > 0. From what I researched, certainty equivalent is ...
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