You have just sold an 'in the money' 6 month European put option on the mining company BHP at an exercise price of $40 for a premium of $3.
Which of the following statements best describes your situation?
The following table shows a sample of historical total returns of shares in two different companies A and B.
Stock Returns | ||
Total effective annual returns | ||
Year | ##r_A## | ##r_B## |
2007 | 0.2 | 0.4 |
2008 | 0.04 | -0.2 |
2009 | -0.1 | -0.3 |
2010 | 0.18 | 0.5 |
What is the historical sample covariance (##\hat{\sigma}_{A,B}##) and correlation (##\rho_{A,B}##) of stock A and B's total effective annual returns?
You just bought $100,000 worth of inventory from a wholesale supplier. You are given the option of paying within 5 days and receiving a 2% discount, or paying the full price within 60 days.
You actually don't have the cash to pay within 5 days, but you could borrow it from the bank (as an overdraft) at 10% pa, given as an effective annual rate.
In 60 days you will have enough money to pay the full cost without having to borrow from the bank.
What is the implicit interest rate charged by the wholesale supplier, given as an effective annual rate? Also, should you borrow from the bank in 5 days to pay the supplier and receive the discount? Or just pay the full price on the last possible date?
Assume that there are 365 days per year.
Let the variance of returns for a share per month be ##\sigma_\text{monthly}^2##.
What is the formula for the variance of the share's returns per year ##(\sigma_\text{yearly}^2)##?
Assume that returns are independently and identically distributed (iid) so they have zero auto correlation, meaning that if the return was higher than average today, it does not indicate that the return tomorrow will be higher or lower than average.
The boss of WorkingForTheManCorp has a wicked (and unethical) idea. He plans to pay his poor workers one week late so that he can get more interest on his cash in the bank.
Every week he is supposed to pay his 1,000 employees $1,000 each. So $1 million is paid to employees every week.
The boss was just about to pay his employees today, until he thought of this idea so he will actually pay them one week (7 days) later for the work they did last week and every week in the future, forever.
Bank interest rates are 10% pa, given as a real effective annual rate. So ##r_\text{eff annual, real} = 0.1## and the real effective weekly rate is therefore ##r_\text{eff weekly, real} = (1+0.1)^{1/52}-1 = 0.001834569##
All rates and cash flows are real, the inflation rate is 3% pa and there are 52 weeks per year. The boss will always pay wages one week late. The business will operate forever with constant real wages and the same number of employees.
What is the net present value (NPV) of the boss's decision to pay later?
Question 699 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 $50. Which of the following statements is NOT correct?
Calculate Australia’s GDP over the 2016 calendar year using the below table:
Australian Gross Domestic Product Components | ||||
A$ billion, 2016 Calendar Year from 1 Jan 2016 to 31 Dec 2016 inclusive | ||||
Consumption | Investment | Government spending | Exports | Imports |
971 | 421 | 320 | 328 | 344 |
Source: ABS 5206.0 Australian National Accounts: National Income, Expenditure and Product. Table 3. Expenditure on Gross Domestic Product (GDP), Current prices.
Over the 2016 calendar year, Australia’s GDP was:
Question 906 effective rate, return types, net discrete return, return distribution, price gains and returns over time
For an asset's price to double from say $1 to $2 in one year, what must its effective annual return be? Note that an effective annual return is also called a net discrete return per annum. If the price now is ##P_0## and the price in one year is ##P_1## then the effective annul return over the next year is:
###r_\text{effective annual} = \dfrac{P_1 - P_0}{P_0} = \text{NDR}_\text{annual}###Major City Apartment Prices | |||
One bedroom, one bathroom, around 55 square metre floor space, Dec 2018 | |||
City | Advertised price | Currency | FX quote |
London, Great Britain | 995,500 | GBP | 1.3 USD per GBP |
Paris, France | 639,000 | EUR | 0.88 USD per EUR |
San Francisco, USA | 859,000 | USD | 1 USD per USD |
Shanghai, China | 6,300,000 | RMB | 6.9 RMB per USD |
Sydney, Australia | 670,000 | AUD | 0.72 USD per AUD |
Tokyo, Japan | 50,800,000 | JPY | 112 JPY per USD |
Which city has the most expensive apartment, measured in United States Dollars (USD)? Pay attention to the FX quotes.
Question 978 comparative advantage in trade, production possibilities curve, no explanation
Arthur and Bindi are the only people on a remote island. Their production possibility curves are shown in the graph.
Assuming that Arthur and Bindi cooperate according to the principles of comparative advantage, what will be their combined production possibilities curve?