Fight Finance

(a) Fall, fall.

(b) Fall, rises.

(c) Rise, fall.

(d) Rise, rise.

(e) Remain unchanged, remain unchanged.

(a) 0.1956, 0.0609, 0.1.

(b) 0.015, 0.09, 0.1.

(c) 0.1881, 0.0609, 0.1025.

(d) 0.1956, 0.0617, 0.1047.

(e) 6.2876, 0.1236, 0.1.

(a) $94.6187

(b) $90.1062

(c) $72.592

(d) $70.3185

(e) $53.1754

(a) Alice says 5% pa since she calculated that this was the average total yield on government bonds over the last 10 years. She says that this is also the expected total yield implied by current prices on one year government bonds.

(b) Bob says 4% pa since he calculated that this was the average total return on the mining stock over the last 10 years.

(c) Cate says 3% pa since she calculated that this was the average growth rate of the share price over the last 10 years.

(d) Dave says 6% pa since he calculated that this was the average growth rate of the share market price index (not the accumulation index) over the last 10 years.

(e) Eve says 15% pa since she calculated that this was the discount rate implied by the dividend discount model using the current share price, forecast dividend in one year and a 3% growth rate in dividends thereafter, which is the expected long term inflation rate.

(a) Short sellers benefit from price falls.

(b) To short sell, you must borrow the asset from person A and sell it to person B, then later on buy an identical asset from person C and return it to person A.

(c) Short selling only works for assets that are 'fungible' which means that there are many that are identical and substitutable, such as shares and bonds and unlike real estate.

(d) An investor who short-sells an asset has a negative weight in that asset.

(e) An investor who short-sells an asset is said to be 'long' that asset.

(a) Option premium is another name for option price.

(b) An option contract's price is always changing.

(c) Strike price is another name for exercise price.

(d) An option contract's strike price is always changing.

(e) Call and put option premiums are paid at the start when the option is bought. Call option exercise prices are paid when they are exercised, usually at maturity.

(a) Competition: Firms in competitive markets earn zero economic profit.

(b) Opportunity cost: The cost of the next best alternative foregone should be subtracted.

(c) Separation of the investment and financing decisions.

(d) Diversification: Risks can often be reduced by pooling them together.

(e) Sunk costs: Costs that cannot be recouped should be ignored.

(a) The returns ##r_\text{t monthly}## are continuously compounded monthly returns.

(b) The mean, median and mode of the continuously compounded annual return is expected to equal 0.8% per month.

(c) The annualised average continuously compounded return is ##\bar{r}_\text{cc annual}=12×0.008=0.096=9.6\%\text{ pa}##. The annualised standard deviation is ##\sigma_\text{annual} = \sqrt{12}×0.15=0.519615242 = 52\%\text{ pa}##.

(d) If the current price of the BHP shares is $20, they're expected to have a median value of $52.2339 ##(= 20×e^{0.008×12×10})## in 10 years.

(e) If the current price of the BHP shares is $20, they're expected to have a mean value of $13.5411 ##(= 20×e^{(0.008 - 0.15^2/2)×12×10})## in 10 years.

(a) Australia’s GDP deflator.

(b) Australia’s CPI.

(c) New Zealand’s CPI.

(d) China’s GDP deflator.

(e) China’s CPI.

(a) To buy consumables like food and clothes at the shops.

(b) For a ‘rainy day’ such as becoming sick and having to pay for a doctor.

(c) To preserve their wealth, such as keeping cash under the bed, in the piggy bank or in a safe.

(d) To invest in assets such as houses, shares or bonds if they become cheap.

(e) To gamble and waste on the poker machines at the casino.