Shannon and Rene are sisters who entered into a contract to buy an income property. The sisters got into a dispute, and Shannon wants out of the deal. However, their uncle Jerry wants to replace Shannon on the contract. Shannon agrees to the substitution so they go ahead and do it. If Jerry fails to live up to his obligations under the contract though, Shannon will be held responsible. Of what is this an example

When the national economy goes from bad to better, market research shows changes in the sales at various types of restaurants. projected 2011 sales at quick-service restaurants are $164.8 billion, which was 3% better than in 2010. projected 2011 sales at full-service restaurants are $184.2 billion, which was 1.2% better than in 2010. how will the dollar growth in quick-service restaurants sales compared to the dollar growth for full-service places?

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?

What would not cause duff beer’s production possibilities curve to expand in the short run? a. improved manufacturing technology b. additional resources c. increased demand