Which of the following best describes theshape of the portfolio possibilities curve?
　　A. Thecurve is strictly convex.
　　B. Thecurve is strictly concave.
　　C. Thecurve is concave above the minimum variance portfolio and convex below theminimum variance portfolio.
　　D. Thecurve is convex above the minimum variance portfolio and concave below theminimum variance portfolio.
　　答案：C
　　答案解析：
　　The portfolio possibilities curve is concaveabove the minimum variance portfolio and convex below the MVP (minimum varianceportfolio).
　　知识点：
　　Possibility Frontier
　　The portion of the portfoiio possibility curve that lies above the minimum variance portfolio is concave while that which lies below the minimum variance portfolio is convex.
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