Is a system for gathering information from respondents by continuously monitoring the advertising, promotion, and pricing they are exposed to and the things they buy?

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?

Braden’s ice cream shop is losing business. he knows that customers are no longer choosing his product because a competing product has become less expensive, yet he has refused to lower his prices. what has happened to braden’s business?

Circumstances under which pro-forma invoice may be used