Fight Finance

(a) $5.2615

(b) $6.0386

(c) $6.3333

(d) $6.6425

(e) $11.9040

(a) $688.32

(b) $704.64

(c) $710.95

(d) $760.95

(e) $817.25

(a) 0.0400

(b) 0.0500

(c) 0.0660

(d) 0.0800

(e) 0.1321

(a) 30

(b) 31.16

(c) 31.2

(d) 50

(e) 52

(a) coupon rate = ##\dfrac{C_{0.5}+C_{1}}{F_T}##, ##r_\text{income, 0 to 1}=\dfrac{C_{0.5}(1+r_\text{total})^{0.5}+C_{1}}{P_0}##

(b) coupon rate = ##\dfrac{2 \times C_{0.5}}{F_T}##, ##r_\text{income, 0 to 1}=\dfrac{C_{0.5}(1+r_\text{capital})^{0.5}+C_{1}}{P_0}##

(c) coupon rate = ##\dfrac{2 \times C_{1}}{P_0}##, ##r_\text{income, 0 to 1}=\dfrac{C_{0.5}+C_{1}}{P_0}##

(d) coupon rate = ##\dfrac{2 \times C_{1}}{P_0}##, ##r_\text{income, 0 to 1}=\dfrac{2 \times C_{1}}{P_0}##

(e) coupon rate = ##\dfrac{2 \times C_{1}}{F_T}##, ##r_\text{income, 0 to 1}=\dfrac{C_{0.5}(1+r_\text{total})^{0.5}+C_{1}}{F_T}##

You buy a house funded using a home loan. Have you or debt?

(a) Asset A has the same systematic risk as asset B.

(b) Asset A has more total variance than asset B.

(c) Asset B has zero idiosyncratic risk. Asset B must be a portfolio of half the market portfolio and half government bonds.

(d) If risk-averse investors were forced to invest all of their wealth in a single risky asset, so they could not diversify, every investor would logically choose asset A over the other three assets.

(e) Assets M and B have the highest Sharpe ratios, which is defined as the gradient of the capital allocation line (CAL) from the government bonds through the asset on the graph of expected return versus total standard deviation.

(a) Arithmetic average gross discrete return is ##\text{AAGDR}_{0\rightarrow T} = \dfrac{\text{GDR}_{0 \rightarrow 1}+\text{GDR}_{1\rightarrow 2}+...+\text{GDR}_{T-1 \rightarrow T}}{T}##

(b) Geometric average gross discrete return is ##\text{GAGDR}_{0\rightarrow T} = \dfrac{\text{GDR}_{0 \rightarrow 1} . \text{GDR}_{1\rightarrow 2} ... \text{GDR}_{T-1 \rightarrow T}}{T}##

(c) The geometric average gross discrete return can be quickly found using the first ##(P_0)## and last ##(P_T)## prices. ##\text{GAGDR}_{0\rightarrow T} = \left( \dfrac{P_T}{P_0} \right)^{1/T}##

(d) The arithmetic average is always bigger than or equal to the geometric average, ##\text{AAGDR} \ge \text{GAGDR}##.

(e) The arithmetic and geometric averages of returns will be equal if the variance of the stock's returns is zero.

(a) Buffett is clever and by reading the news and financial reports he is able to buy under-priced stocks and sell over-priced stocks. This provides evidence for rejecting the semi-strong and strong form EMH.

(b) Buffett was lucky, his strategy happened to be the right one, not due to its merits, just by chance. This provides no evidence for or against the weak, semi-strong or strong form EMH.

(c) Buffett’s investment strategy exposes investors to higher undiversifiable risk than the market and therefore deserves a higher return. This provides no evidence for or against the weak, semi-strong or strong form EMH.

(d) Buffett is an insider trader and is able to make money from his private information. This provides evidence for rejecting the semi-strong and strong form EMH. (Note: Warren Buffett is not an insider trader, he is an honest philanthropist, but assume the contrary in this answer option).

(e) Buffett may not have beaten the market because the graphs ignore dividends - the S&P500 is the price index rather than the accumulation index and BRK pays no dividends, so even though BRK has a higher capital return than the S&P500, the total returns could be equal. This provides no evidence for or against the weak, semi-strong or strong form EMH.

(a) 19

(b) 21

(c) 79

(d) 80

(e) 81