Economics Question Economics Assignment Help. Economics Question Economics Assignment Help.
I’m working on a economics multipart question and need a sample draft to help me understand better.
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1. (20) One of the more complex options strategies is the socalled “iron condor” portfolio, using a combinations
of long and short positions, call and put options, and four different strike prices. In this question we will
consider what would motivate traders to construct such a portfolio and the structure of the payoffs that they
receive from it. Suppose that stock in Hieroglyph Inc. is currently priced at St = 150 per share, with prices of
various options written on this stock given below.
Strike Call Price Put Price
120 35 5
140 20 10
160 10 20
180 5 35
(a) (10) Suppose that you are convinced that this stock is not as volatile as the market believes it to be,
but are unsure of the direction of future price movements. Construct a suitable portfolio to match your
beliefs, and plot the payoff diagram (you may assume a zero riskfree rate).
(b) (10) Now suppose that, while you still believe that extreme price movements in either direction are
unlikely, you wish to limit your downside risk just in case. Modify your portfolio to achieve this, and plot
the payoff diagram.
2. (60) Consider applying the binomial method to price American options. Suppose that stock in the MAGA
Hat Company is priced at S0 = 100 and consider options that are at the money K = 100. The options mature
in T = 1 year, which we divide into n = 3 periods, each of length t = T
n = 1
3 . The riskfree rate is r = 0.08
and MAGA stock has a volatility of = 0.45.
(a) (10) Calculate the magnitude of upticks u and downticks d, as well as the riskneutral probability p.
(b) (10) Draw the stock price tree and calculate the payoffs to call and put options at each final price.
(c) (10) Using backward induction, calculate the price of European call and put options.
(d) (10) Verify that putcall parity holds for European options.
(e) (10) Find the price of American call and put options. Is it ever worthwhile to exercise early?
(f) (10) Does putcall parity hold for American options?
3. (20) Pick any stock and look up the current option prices. Pay particular attention to the implied volatility,
the volatility which, if plugged into the BlackScholes pricing formula along with the other known parameters,
would yield the price of the option.
(a) (10) Choose an expiry date, and plot the implied volatility of call options against the strike price, ignoring
any implied volatilities of 0. What do you see, and what might explain this?
(b) (10) Now select at least three more expiry dates, and repeat the same plot for each. What happens to
implied volatility as time to maturity increases?
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An oceanographer wants to test, on the basis of
a random sample size of 20, whether the average depth of the ocean in certain
areas is greater than 75 fathoms. A the .10 level of significance, what will
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