the practice of econometrics classic and contemporary 这本书的chapter2课后习题答案有么？急需

Start with the Data after Reading Ch.2 ofErnst BERNDT's Textbook, 'The Practice of Econometrics' that can be found inthe Hartley Library. Use the dataset included in Group Problem Set -Exercise 2-below, called topic1.dta

The data in each of these files describesthe monthly realized return of the whole stockmarket (MARKET), of the risk-freeasset (RKFREE) and of the company (IBM).

1) Using data in linked file named MARKET,plot returns for the whole period and for the last 36 months (jan-85 todec-87). Adjust a tendency line and explain the differences.

2) Using data in linked files MARKET andRKFREE, construct: the risk premium measure for the company available (IBM),and the overall market. Is the risk premium negative for some month of thesample? Why do you think this happens?

3) Compute sample means for the company,the whole market, the risk-free asset, and the above computed risk-premia (forthe company and for the whole stockmarket). These are mean monthly returns, notannual. To obtain annual returns use the formula:

Compute annual returns for the company, thewhole market, the risk-free asset, and the above computed risk-premia (for thecompany and for the whole stockmarket). Do these values appear plausible? Why?

4) Plot the company's and the stockmarket'srisk premia for the last 36 months. What can you notice from the plots? Do youthink that this company's Beta for this time period will be grater or less thanunity? Why? Does this make intuitive sense?

5) Compute the variance and the standarddeviation of the company's and stockmarket's risk premia over the same last 36months, and the simple correlation coefficient between them. Plug into thefollowing equation the values obtained to find out the implied Beta for thiscompany:

Is this Beta roughly equal to what youexpected? Adjust a linear regression and compare both. What do you conclude?