Aportfolio has 50% of its value in ibm shares and the rest in microsoft (msft). the volatility of ibm and msft are 40% and 30%, respectively, and the correlation between ibm and msft is -0.1. what is the standard deviation of the portfolio? oa. 23.77% b. 22.58% c. 21.39% d. 26.15%

Jing-sheng facilitated a hiring committee for his advertising company. six employees (including two managers) met together to discuss applicants and select the finalists for a copywriter position in the public relations department. although the head of public relations would have the final nod on the candidate that would ultimately be hired, the evaluative work of the committee was very important because this group would send forward those persons they believed would be good work colleagues. in setting up this type of hiring process, the head of public relations was utilizing a(n) style of leadership.a. autocraticb. free-reinc. contingentd. participative

In general, as long as the number of firms that possess a particular valuable resource or capability is less than the number of firms needed to generate perfect competition dynamics in an industry, that resource or capability can be considered and a potential source of competitive advantage.answers: valuablerareinimitableun-substitutable

Classify each of the following items as a public good, a private good, a natural monopoly good, or a common resource.(a) measles vaccinations (b) tuna in the pacific ocean (c) airline service in the united states (d) local storm-water system