The government of Ambria generally does not interfere in the value of the nation's currency. However, recently when the nation faced a severe financial crisis leading to its currency being depreciated to a great extent, the government decided to explicitly intervene by increasing the supply of money. In this scenario, the Ambrian government can be said to be engaging in a . managed float
clean float
mixed float
spreader float

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?