Some analysts consider oligopolies to be potentially less efficient than monopoly firms because at least monopoly firms tend to be regulated. Arguments in favor of a more benign view of oligopolies include: Instructions: You may select more than one answer. Click the box with a check mark for correct answers and click to empty the box for the wrong answers. A) Oligopolistic industries may promote technological progress. B) unanswered Oligopolies may engage in limit pricing to keep out potential entrants. C) unanswered Oligopolies are self-regulating. D) unanswered Oligopolies can be kept in line by foreign competition.

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?

You should typically prepare at least questions for the people who will host you during a job shadow. a. 3 b. 4 c. 5 d. 2

Which is cheaper: eating out or dining in? the mean cost of a flank steak, broccoli, and rice bought at the grocery store is $13.04 (money.msn website, november 7, 2012). a sample of 100 neighborhood restaurants showed a mean price of $12.75 and a standard deviation of $2 for a comparable restaurant meal. a. develop appropriate hypotheses for a test to determine whether the sample data support the conclusion that the mean cost of a restaurant meal is less than fixing a comparable meal at home. b. using the sample from the 100 restaurants, what is the p-value? c. at a = .05, what is your conclusion? d. repeat the preceding hypothesis test using the critical value approach