Term 1 Flashcards
What is the formula for the CAPM?
Rf+cov/Var(rm-Rf)
Discuss the CAPM?
Represents ROR and Beta
If plotting over = Under priced
Investors are rewarded for taking on systematic risk
What are the assumptions of the CAPM?
Investors are efficent and homogenous
Unlimited borrowing and lending, no taxes or transaction costs
Infinitley divisible assets
What is the Roll Critique?
As we cannot identify the market, we cannot test the CAPM
Discuss the Zero Beta Model?
A model that uses the least risky asset as opposed to a risk free asset
Minimum variance
Steeper than the CAPM
What is the value effect?
What is the size effect
The higher P/E the better the performance
The smaller the firm the better the performance
What is the CCAPM?
Links asset growth to growth of aggregate consumption
More growth = higher returns
High covariance with consumption = more risk
We can now measure the market portfolio
Discuss risk in the CCAPM?
Consumption valued more in hard time
A risky asset thus pays off more in booms
What is the CCAPM equation?
E(R)=BicRPc
B= Slope of returns above consumption portfolio
RPc = Risk premium associated with consumption uncertainty
What are the drawbacks of the CAPM?
Does not match data
Consumption is hard to measure
Every individual does not invest but does consume
Define the ICAPM?
Inter temporal CAPM
Assume the distribution of returns and investor preferences change over time
There is also multiple sources of risk
Define some potential sources of risk in the ICAPM?
Consumption, labour income, other investment opps
Each has own beta
Evaluate the ICAPM?
Need to use factors that have a theoretical justification
How do you calculate the Beta of a weighted portfolio?
Calculate the average of each of the assets Beta
What do we assume about the basic securities?
They themselves are well diversified therefore no idiosyncratic risk
What is a factor replicating portfolio?
An asset that has one Beta = 1 and the rest zero
This allows an identical portfolio to an asset X - should have same price
What is the notation?
X=rf+B1xLamda1+B2xLamda2`
What is the APT?
We replicate an asset using factor replicating portfolios, they should have teh same price
What are the limitations of the APT?
Doesn’t say what factors to include
Can never disprove the model, only the factors include
What are the assumptions of TA?
The market considers all info
Prices move in trends