Assume that stock market returns do not resemble a single-index structure. An investment fund analyzes 125 stocks in order to construct a mean-variance efficient portfolio constrained by 125 investments. They will need to calculate expected returns and variances of returns. Group of answer choices None of the options are correct. 15,625; 125 125; 15,625 125; 125 15,625; 15,625

If a country is looking to increase economic growth quickly, it should: choose the correct answer from the following choices, and then select the submit answer button. answer choices focus on natural resources and develop physical capital. make investments from domestic savings and adopt new technology. increase spending on human capital and start a new political approach. develop new technologies funded by the public sector.