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-1
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0answers
21 views

How to calculate probability premium

This is from MWG#6.c.18 b Given $U= \sqrt {x (16, 4, 1/2, 1/2 )}$, I need to calculate certainty equivalent and probability premium. I calculated the expected value: $$1/2* 16 + 1/2*4=10=EV$$ the ...
1
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1answer
38 views

How to have same utility function for two persons?

I have a question regarding utility functions: Utility can be defined as follows: $U=1+e^{\frac{x}{RT}}$ U:Utility x: What we want to find the utility for (Certain equivalent) RT: Risk tolerance ...
0
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0answers
28 views

Why don't firms and individuals do much more risk management? Couldn't they all hedge all kinds of risks financially?

There are many risks in the economy that agents could hedge. For example, house prices, healthcare costs, gas prices, food prices,etc. They all change in somewhat unpredictable ways. You would think ...
0
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1answer
36 views

Negative expected value; risk neutral choice

Suppose there are two options: (1) take a gamble with 50% chance you win \$100 and 50% chance you lose \$110 or (2) don't take the gamble at all and win/lose nothing. Would the risk-neutral take the ...
0
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0answers
15 views

What is the name of chart showing 1-day, 2-day etc movements of instrument?

When looking at historical data (index or stock), one can graph the max 1-day differences/movements/fluctuations, all 2-day, all 3-day etc. This gives two line graphs (one for positive max, one for ...
2
votes
2answers
85 views

Is DARA utility implying CRRA most of the time?

The Wikipedia page on risk aversion states that a "Constant Relative Risk Aversion implies a Decreasing Absolute Risk Aversion, but the reverse is not always true". Let me decompose this statement in ...
5
votes
1answer
125 views

Does dollar cost averaging actually have any advantage over one time investment?

Some banks promote savings plans by stating that investing a fixed amount of money in regular time intervals minimizes the average buying price or the downside risk (dollar cost averaging). Since the ...
2
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2answers
316 views

Is the loan principal ever delivered in pieces over time?

Not sure if this is the right place for this question but it's more of a theoretical finance question than a personal finance question. So a loan has a principal amount that is given to the borrower ...
2
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1answer
50 views
2
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2answers
65 views

What is the need for a special purpose entity/vehicle in mortgage backed securities

What is the need to create a special purpose entity/vehicle (SPV) for mortgage backed securities? What potential risks are avoided due to the creation of SPV? It is my naive idea that the holder of ...
0
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0answers
16 views

Firms accumulating knowledge in offshore centre to shift production of components there in case of disruption at home location?

Have firms switched production from their home location to an offshore location due to some disruption at the home location, using the accumulated knowledge (learning by doing something else) at their ...
1
vote
2answers
118 views

Sanity of lending out made-up money

Background I've done some research to get an understanding into the issue I want to ask about. Regrettably, I found out general descriptions of the mechanism and/or evidently biased explanations, ...
2
votes
1answer
52 views

How is project value enhanced by uncertainty in market payoff?

I was reading about the concept of real options valuation. It says that ROV has shown that uncertainty in market pay-off enhances the project value (V). How is that? Will it be possible to explain ...
7
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2answers
93 views

Will high computing power substitute the certainty-equivalence assumption?

Bloom in a recent JEP paper considers that "the increase in computing power has made it possible to include uncertainty shocks directly in a wide range of models, allowing economists to abandon ...
2
votes
1answer
41 views

Risky Assets over Bernoulli Utility

My question is about 6.C.4. of Mas-Colell et.al.'s Microeconomic Theory book. We have N risky assets with returns $z_n, n = (1,...,N)$ per dollar invested which are distributed over $F(z_1,...,z_n).$ ...
2
votes
1answer
121 views

Independence axiom of lottery when $\alpha \ge 1$

When studying preference over lotteries we learned the independence axiom which goes like this: The preference relation $\succsim$ on the space of simple lotteries $\mathscr{L}$ satisfies the ...
2
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0answers
16 views

How do governments deflect risk through greater volatility in the housing market?

Source: p 123 of 296, Understanding Housing Policy, by Brian Lund Although housing immobility limits the impact of globalisation, its influence on financial and labour markets magnifies ...
3
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1answer
67 views

Perfect risk sharing in Arrow-Debreu w/ the same subjective beliefs over states

So I'm looking at a 2-agent Arrow-Debreu economy with one good. Consumption and endowments are zero in t=0, and 2 states are possible in t=1 with aggregate endowment in both states equal to 1. We ...
2
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1answer
75 views

Relative risk aversion and lotteries

Given a consumer with a utility function, $u(w)$, and a wealth of $w>1000$. Assuming that the consumers relative risk aversion is constant and equal to 1, that is $R_r(w)=1$ for $w>0$, the ...
2
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0answers
76 views

Probability of states of nature

I've been given the following question and would really appreciate any help on part a. I've looked over all of my resources for this course and we have always been given the probability of the ...
6
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2answers
185 views

What is the necessity of the FDIC in the US banking system?

A bank's basic function is to "borrow short and lend long". In other words, it borrows money from depositors over the short term, promising to repay it on demand, while it lends most of that money out ...
1
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1answer
33 views

How to evaluate if an activity is likely to produce a positive ROI?

I am trying to establish if it would be worth my while to sell a product in a particular online marketplace but am unsure how to evaluate if it would be financially worth my while. The marketplace in ...
10
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6answers
191 views

What metrics would indicate a house bubble rather than genuine market values?

There are concerns that Auckland, New Zealand, is currently experiencing a housing bubble. Auckland is one of the top 10 cities in the world on a housing unaffordability index. The question is - ...
2
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0answers
61 views

What can we conclude from the overdetermined equity premium puzzle?

The equity premium: A puzzle (Mehra and Prescott (1985)) lays out the basic problem with equity returns: Restrictions that a class of general equilibrium models place upon the average returns of ...
0
votes
1answer
139 views

Question about constant relative risk aversion

The question: Consider a person with constant relative risk aversion $p$. (a) Suppose the person has wealth of $100,000$ and faces a gamble in which he wins or loses $x$ with equal probabilities. ...
8
votes
2answers
306 views

Intuition behind risk premium

In Lecture 20 of MIT's Microeconomics course, a situation is proposed where a 50/50 bet will either result in losing \$100 or gaining \$125 with a starting wealth of \$100. It is stated that a person ...
2
votes
0answers
16 views

How can I construct a process for cumulative returns that is riskless?

This question is a little more specific than the title. Here I use the same notation that is set forth in this other question about cumulative returns (the sum of return observations). That is, let $...
3
votes
1answer
53 views

Multiplicative factorization of stochastic growth time series--solving for an eigenfunction/eigenvector

I'm trying to understand the tools used/presented in Lars Hansen's Econometrica paper "Dynamic Valuation Decomposition within Stochastic Economies." In a part in the paper, Hansen introduces a long-...
7
votes
3answers
309 views

What are alternative measures of risk?

In finance, the variance of the returns of a security are used as a proxy for the associated risk of the security. I've seen some books include sentences like "if you take variance as a measure of ...
5
votes
2answers
126 views

Definition of Absolute Risk Aversion

In its Wikipedia article, absolute risk aversion is defined as $ARA = -\frac{u''(c)}{u'(c)}$. However, I have alternatively seen absolute risk aversion defined as half the decrease in consumption ...
3
votes
2answers
77 views

What are the economic justifications of the size premium?

What are the economic justifications of the size premium? In factor pricing models like the intertemportal capital asset pricing model (I-CAPM) or arbitrage pricing theory (APT), it is assumed that ...
4
votes
1answer
91 views

Portfolio choice of a risk lover

Take the standard portfolio choice problem as presented in MWG (p.188-189), but with a risk loving decision maker: with initial wealth $w$ invests an amount $\alpha$ in a risky asset with a random ...
2
votes
1answer
660 views

Absolute vs Relative Risk Aversion

Are there results that says the monotonicity of one measure of risk aversion implies the monotonicity of the other measure? For example, Does constant relative risk aversion imply decreasing ...
13
votes
2answers
1k views

What is the importance of Epstein-Zin preferences?

I've heard that there is a lot of work being done recently that applies Epstein-Zin preferences. The Wikipedia page doesn't seem to be very full. Why are Epstein-Zin preferences important? How does ...
6
votes
2answers
204 views

How is momentum justified as a common risk factor?

Momentum as a common risk factor? This question is partly a follow-up to another question found here. In this other question it was noted in momentum is difficult to explain as a common risk factor ...