Assume that stock market returns do follow a single-index structure. An investment fund analyzes 200 stocks in order to construct a mean-variance efficient portfolio constrained by 200 investments. They will need to calculate ________ estimates of expected returns and ________ estimates of sensitivity coefficients to the macroeconomic factor.
A. 200; 19,900
B. 200; 200
C. 19,900; 200
D. 19,900; 19.900
B. 200; 200
For a single-index model, n(200), expected returns and n(200) sensitivity coefficients to the macroeconomic factor must be estimated.
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