# Questions tagged [risk-aversion]

A property of preferences that causes an agent to prefer alternatives whose outcomes are relatively certain, even when the associated expected payoff is lower.

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### How do I compute the relative risk aversion of Epstein-Zin preferences?

$$\newcommand{\E}{\mathbb{E}}$$ Preface This question is related to this one about the elasticity of intertemporal substitution and this one about the definition of absolute risk aversion. (It's ...
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538 views

### Certainty Equivalents and Risk Premiums in Expected Utility Theory for Asymmetric Distributions

I want to calculte risk-premiums in order to assess how much risk-averse customers would be willing to pay for an insurance against an uncertain loss modeled by a random variable $X$. How would a risk-...
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239 views

### Calculating the optimal portfolio for an investor with quadratic utility

The problem is from Asset Pricing and Portfolio Theory by Back and can be found here. The relevant info from section 2.5 can be found here. Given that we have the Expected value and the variance of ...
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58 views

### Assessing risk in a decision problem with repeated toss

The problem starts at time t0. At each time step, the participant can choose to opt out and claim a loser's reward Rl. At each time step, the participant has a probability p to win a winner's reward ...
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### Dominated lotteries in CPE

I have been looking into expectation-based loss aversion following Kőszegi-Rabin (2005, 2007). In particular, I find their choice-acclimating personal equilibrium (CPE) interesting, but it has a ...
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### Terminology for separability in price and value

Take an agent with mean-variance utility over something that is uncertain: $$U(x) = \mu_x^\theta - \sigma_x^\lambda$$ $A\in \{0,1\}$ happens if $U(x)>0$, and $x$ is a random variable  A = \...
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238 views

### How a utility function which is both DARA and CRRA can be explained?

I'm studying risk aversion and I cannot make a intuitive explain about the utility function which is DARA and CRRA. for instance, let's say, $\ln W$, where $W$ stands for one's wealth. by the ...
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### Diminishing mariginal utiliy and the preference

The diminishing marginal utility is a concept only in cardinal utility rather than ordinal utility. As diminishing marginal utility has a concave utility shape, does it mean the diminishing marginal ...
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### Why might firms be averse to idiosyncratic risk?

Under the CAPM and other theories, a widely held corporation should be averse only to systematic risk, correlated with other investments in the economy, not idiosyncratic risk like a CEO dying or a ...