Calculate the expected return and risk of the portfolio for each of the following portfolios. Recall that the previous choices on the efficient frontier were portfolios e, f and g. How does the efficient frontier, i. e. the possible choices for a risk-averse investor, change when the four new portfolios are considered?
(a) U. S. stocks: 30%; U. S. bonds: 30%; international stocks: 40%.
(b) U. S. stocks: 25%; U. S. bonds: 20%; international stocks: 55%.
(c) U. S. stocks: 20%; U. S. bonds: 40%; international stocks: 40%.
(d) U. S. stocks: 20%; U. S. bonds: 20%; international stocks: 60%.

Uppose the book-printing industry is competitive and begins in a long-run equilibrium. then hi-tech printing company invents a new process that sharply reduces the cost of printing books. suppose hi-tech's patent prevents other firms from using the new technology. which of the following statements are true about what happens in the short run? check all that apply. hi-tech's average-total-cost curve shifts downward. hi-tech's profits increase. the price of books remains the same. hi-tech's marginal-cost curve remains the same.

Costs of production that do not change when output changes.question 17 options: total revenuefixed incometotal costfixed cost

(05.04 mc) a 2012 report from the u.s. surgeon general stated: "another common practice is strategically locating tobacco-related marketing materials where young children will be exposed to them. tobacco industry executives acknowledge that products and advertising should be placed at eye level (pollay 2007), but in california, 48% of stores had at least one cigarette marketing item at or below 3 feet from the floor (feighery et al. 2001)." it was also noted that 25% of cigarette displays were next to candy. in addition, a national study found that about one-third of the stores had tobacco ads at low heights. after california banned counter displays, some stores place cigarettes in transparent displays so product brands could still be seen. why did some stores use transparent units to display the cigarettes? (3 points) to comply with the new rules while still encouraging cigarette purchases via visual exposure to ensure children and minors are not exposed to cigarettes and their eye-catching packaging to minimize exposure to humidity, extending the shelf life of the cigarettes' tobacco to reduce the occurrence of shoplifting, since cigarettes are high-revenue items