Question

Assume that stock market returns do follow a single-index structure. An investment fund analyzes 500 stocks in order to construct a mean-variance efficient portfolio constrained by 500 investments. They will need to calculate ________ estimates of firm-specific variances and ________ estimate/estimates for the variance of the macroeconomic factor.

A. 500; 1

B. 500; 500

C. 124,750; 1

D. 124,750; 500

E. 250,000; 500

Answer

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