Exhibit 19-5.Firms A,B,and C operate in the market for computers.Each firm's product is popular in the market and distinct from what the other firms offer.The following table shows the prices of laptops from 2005 through 2007. 
Refer to Exhibit 19-5.Compute the unweighted price index for the three types of laptops in 2006,using 2005 as the base year.
Definitions:
Work More
The concept or action of increasing the amount of effort or hours spent on labor or tasks.
New Classical Economists
Economists who advocate for the theory that markets are clear and that prices, wages, and rates adjust quickly to equilibrate supply and demand.
Government Intervention
Actions taken by the government to influence economic activity and market outcomes, such as regulation, subsidies, and taxation.
Monetarists
Economists who believe that the variations in the money supply have major influences on national output in the short run and the price level over longer periods.
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