Characteristics of a monopoly

Identify and describe a variety of performance rating scales that can be used in organizations including graphical scales, letter scales, and numeric scales.

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?

Last year ann arbor corp had $155,000 of assets, $305,000 of sales, $20,000 of net income, and a debt-to-total-assets ratio of 37.5%. the new cfo believes a new computer program will enable it to reduce costs and thus raise net income to $33,000. assets, sales, and the debt ratio would not be affected. by how much would the cost reduction improve the roe? a. 11.51%b. 12.11%c. 12.75%d. 13.42%e. 14.09%