Diversification in a portfolio of two assets works best when the correlation between their returns is:
Question 472 quick ratio, accounting ratio
A firm has current assets totaling $1.5b of which cash is $0.25b and inventories is $0.5b. Current liabilities total $2b of which accounts payable is $1b.
What is the firm's quick ratio, also known as the acid test ratio?
An investor owns an empty block of land that has local government approval to be developed into a petrol station, car wash or car park. The council will only allow a single development so the projects are mutually exclusive.
All of the development projects have the same risk and the required return of each is 10% pa. Each project has an immediate cost and once construction is finished in one year the land and development will be sold. The table below shows the estimated costs payable now, expected sale prices in one year and the internal rates of returns (IRR's).
| Mutually Exclusive Projects | |||
| Project | Cost now ($) |
Sale price in one year ($) |
IRR (% pa) |
| Petrol station | 9,000,000 | 11,000,000 | 22.22 |
| Car wash | 800,000 | 1,100,000 | 37.50 |
| Car park | 70,000 | 110,000 | 57.14 |
Which project should the investor accept?
Which of the below formulas gives the profit ##(\pi)## from being short a call option? Let the underlying asset price at maturity be ##S_T##, the exercise price be ##X_T## and the option price be ##f_{LC,0}##. Note that ##S_T##, ##X_T## and ##f_{LC,0}## are all positive numbers.
Question 701 utility, risk aversion, utility function, gamble
Mr Blue, Miss Red and Mrs Green are people with different utility functions.
Each person has $50 of initial wealth. A coin toss game is offered to each person at a casino where the player can win or lose $50. Each player can flip a coin and if they flip heads, they receive $50. If they flip tails then they will lose $50. Which of the following statements is NOT correct?
Question 703 utility, risk aversion, utility function, gamble
Mr Blue, Miss Red and Mrs Green are people with different utility functions.
Each person has $500 of initial wealth. A coin toss game is offered to each person at a casino where the player can win or lose $500. Each player can flip a coin and if they flip heads, they receive $500. If they flip tails then they will lose $500. Which of the following statements is NOT correct?
Question 742 price gains and returns over time, no explanation
For an asset's price to quintuple (be five times as big, say from $1 to $5) every 5 years, what must be its effective annual capital return?
Question 834 option, delta, theta, gamma, standard deviation, Black-Scholes-Merton option pricing
Which of the following statements about an option (either a call or put) and its underlying stock is NOT correct?
| European Call Option | ||
| on a non-dividend paying stock | ||
| Description | Symbol | Quantity |
| Spot price ($) | ##S_0## | 20 |
| Strike price ($) | ##K_T## | 18 |
| Risk free cont. comp. rate (pa) | ##r## | 0.05 |
| Standard deviation of the stock's cont. comp. returns (pa) | ##\sigma## | 0.3 |
| Option maturity (years) | ##T## | 1 |
| Call option price ($) | ##c_0## | 3.939488 |
| Delta | ##\Delta = N[d_1]## | 0.747891 |
| ##N[d_2]## | ##N[d_2]## | 0.643514 |
| Gamma | ##\Gamma## | 0.053199 |
| Theta ($/year) | ##\Theta = \partial c / \partial T## | 1.566433 |
Question 883 monetary policy, impossible trinity, foreign exchange rate
It’s often thought that the ideal currency or exchange rate regime would:
1. Be fixed against the USD;
2. Be convertible to and from USD for traders and investors so there are open goods, services and capital markets, and;
3. Allow independent monetary policy set by the country’s central bank, independent of the US central bank. So the country can set its own interest rate independent of the US Federal Reserve’s USD interest rate.
However, not all of these characteristics can be achieved. One must be sacrificed. This is the 'impossible trinity'.
Which of the following exchange rate regimes sacrifices convertibility?
Question 974 foreign exchange rate, monetary policy, no explanation
Suppose the market expects the Bank of Japan (BoJ) to increase their short term interest rate by 15 basis points at their next meeting. The current short term interest rate is -0.1% pa and the exchange rate is 100 JPY per USD.
As expected, the BoJ announce that they will increase short term interest rate by 15 basis points.
What do you expect to happen to Japan’s exchange rate on the day when the announcement is made? The Japanese Yen (JPY) is likely to: