Part b. inflation and real gdp (two points) 3. in a hypothetical economy, the gdp deflator has the following values. year gdp deflator 2005 100 2018 116 2019 120 a. what is the annual inflation rate in 2019? show your computation. [hint: round your answer to two decimal places.] b. nominal gdp in 2019 is $420 billion. what is real gdp (billions of 2005 dollars) in 2019? show your computation. [hint 1: think level, not percentage change.] [hint 2: this question refers to an earlier part of the course.]

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?