• The stock market of country A has an expected return of 5 percent and a standard deviation of the expected return of 8 percent. The stock market of country B has an expected return of 15 percent and a standard deviation of the expected return of 10 percent. Assume that the correlation of expected return between A and B is negative 1.
• a. Calculate the standard deviation of the expected return of a portfolio with half invested in A and half invested in B. 

• b. Find the Global Minimum Variance Portfolio.
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