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Economics 349

Financial Economics

Fall 2023

1.      Asset Supply and Demand     (30 points)

a.   Explain whether the following statement is true, false, or uncertain.  Use graphs and equations (if relevant) in your explanation.

“ Someone who is risk-averse will not buy an asset that has more risk, a lower expected return, and more liquidity than another asset.”

b.   List those factors which influence the supply and demand of a bond issued by Barclays.  If inflation is expected to rise, what will happen to equilibrium price and quantity for the

bond?  Briefly explain and graphically illustrate your answer.

c.   Capita, an outsourcing firm, recently issued a profits warning, cancelled its dividend, and sought additional funding from investors.  Half its income is generated from the private

sector and the other half from the public sector (for example it collects the BBC license

fee and London congestion charge).  What would you anticipate would happen in the

market for its shares just after the actions outlined above?  Concisely explain and illustrate your answer.

2.      Interest Rates and Returns    (20 points)

a.   Suppose you are interested in buying a 4-year coupon bond with an annual coupon rate of 5% and a face value of £1,000. The current market interest rate is 5%. How much are

you willing to pay for the bond?

b.   Suppose the BoE, through open market operations, forces interest rates up.  Three years  after you purchased the bond, the market interest rate is now 20%. How much is a buyer willing to pay you for that bond now?

c.   Suppose you sold the bond after three years, calculate your rate of return for the bond.

d.   In general (not based on any of the work for parts a-c), what would be the formula for the rate of return of a discount bond which will be sold in five years.  And for a coupon bond which also will be sold in five years.  If the price difference over those five years is £100 for each bond, under what conditions on prices would you prefer to hold the discount

bond?

3.      Mean-Variance Model           (20 points)

a.   Briefly compare and contrast CAPM with the Mean-Variance Model.  What is the

relationship between the risky assets held by individuals and those held by the entire market?

You can invest in asset A with expected return 15% and standard deviation 30% and asset B with expected return 25% and standard deviation 70%.  The correlation between assets is

−0.4.  There also exists a risk-free asset with return 12%.  Suppose you want to construct a portfolio with expected return 20%.

b.   What is the relationship between the share of the portfolio held in asset A and the share

held in the risk-free asset?  The relationship between the share in asset B and the risk-free asset?

c.   What is the equation for the variance of this portfolio?

d.   What would the shares of asset A, asset B, and the risk-free asset be for the optimal mean- variance portfolio with an expected return of 0.2?

4.      CAPM Model                          (30 points)

Suppose there exists a mutual fund F , whose beta is reported as 0.8.  Over the past several

years the fund has averaged an annual expected return 15% above the risk-free rate, which is equal to 5%.  The market has been averaging an annual expected return 10% above the risk- free rate.  Suppose today’s price of one share of the fund is £50.

a.   What does the CAPM model predict the price should be?  Is the fund over or undervalued?  Illustrate this graphically.

Consider a world with only two risky assets, A and B, and a risk-free asset. Stock A has 200 shares outstanding, a price per share of £3, an expected return of 16% and a volatility of

30%. Stock B has 300 shares outstanding, a price per share of £4, an expected return of 10% and a volatility of 15%. The correlation coefficient p!B   = 0.4. Assume CAPM holds.

b.   What is expected return and the volatility of the market portfolio?

c.   What is the beta of each stock?

d.   What is the risk-free rate?