22. Refer again to problem 21. How does consideration of basis risk change your a. Compute the number of futures contracts required to construct a macro- answers to problem zhr of futures contracts hedge if [AR/(1 + R)/R/(1 + R)]-br 0.90 b. Explain what is meant by br 0.90. C. If br 0.90, what information does this provide on the number of futures contracts needed to construct a macrohedge? 22. Refer again to problem 21. How does consideration of basis risk change your a. Compute the number of futures contracts required to construct a macro- answers to problem zhr of futures contracts hedge if [AR/(1 + R)/R/(1 + R)]-br 0.90 b. Explain what is meant by br 0.90. C. If br 0.90, what information does this provide on the number of futures contracts needed to construct a macrohedge