Suppose that 16 risky assets have been identified whose rates of return satisfy ri=±α+f+ϵi where α>0. Note that 8 of the risky assets use the + sign in front of α in the equation, while the other 8 use the − sign. The factor f is common to all 16 risky assets. The factor f has a mean of 10 and standard deviation equal to 3–√. Each ϵi represents a specific error, in the sense that each has zero mean, zero covariance with f, and zero covariance with the other risky assets. Each ϵi has a standard deviation equal to 4. Now assume that a portfolio consists of all of these stocks, with equal weight given to each one of them. What is the expected rate of return of the portfolio?

Skathy lee berggren, a professor of oral communication at cornell university, indicates “a lot of my students re­ally [only] scratch the surface with the type of research they’re doing.” according to andy guess, at inside higher ed, “just because students walk in the door as ‘digital natives’, doesn’t mean they’re equipped to handle the heavy lifting of digital databases and proprietary search engines that comprise the bulk of modern, online re­search techniques.” students erroneously think a google search is research. as you read through the reasons that should stimulate your interest in studying research methods or evaluate the nine factors that guarantee good research, what actions do you propose to narrow the gap between students’ research competence and what’s required of a modern college graduate about to become a manage