The lionfish is an invasive species from the indo-pacific, now also found in the east coast of the united states and in the caribbean. an exceptional predator that reproduces year round, the lionfish has wreaked havoc on the natural ecosystem with a population more than 10 times higher than in its native environment. with a population so high, it is unlikely the extermination practices of any one person, or even any one organization could eliminate them, though eliminating them would benefit everyone. therefore, the national oceanic and atmospheric administration (noaa) launched a campaign highlighting how tasty lionfish are and presenting instructions on how to cook them. the noaa's approach to solving this problem is best described as using the economics of:
a) public goods to solve nonexcludable goods.
b) private goods to solve the tragedy of the commons.
c) private goods to solve a public goods free riding problem.
d) commons resources to solve forced riding.

An employer who is considering hiring eva has asked donna, eva’s former supervisor, for a report on eva. in truth, eva’s work for donna has been only average. however, eva is donna’s friend, and donna knows that eva probably will not get the job if she says anything negative about eva, and donna knows that eva desperately needs the job. further, donna knows that if the situation were reversed, she would not want eva to mention her deficiencies. nevertheless, it has been donna’s policy to reveal the deficiencies of employees when she has been asked for references by employers, and she knows that some of eva’s faults may be bothersome to this particular employer. finally, this employer has leveled with donna in the past when donna has asked for a report on people who have worked for him. should donna reveal deficiencies in eva’s past performance? (remember to use one of the three moral theories acceptable for this test to solve this dilemma. any discussion of any personal opinion, religious perspective, or theory other than the moral theories acceptable for this test will result in a score of "0" for this question.)

An investment offers a total return of 18 percent over the coming year. janice yellen thinks the total real return on this investment will be only 14 percent. what does janice believe the inflation rate will be over the next year?

Google started as one of many internet search engines, amazon started as an online book seller, and ebay began as a site where people could sell used personal items in auctions. these firms have grown to be so large and dominant that they are facing antitrust scrutiny from competition regulators in the us and elsewhere. did these online giants grow by fairly beating competition, or did they use unfair advantages? are there any clouds on the horizon for these firms -- could they face diseconomies of scale or diseconomies of scope as they continue to grow? if so, what factors may limit their continued growth?