positive, that is, Coke and Pepsi are substitutes.

Micro Economics For Today
10th Edition
ISBN:9781337613064
Author:Tucker, Irvin B.
Publisher:Tucker, Irvin B.
Chapter5: Price Elasticity Of Demand And Supply
Section: Chapter Questions
Problem 5SQP: Suppose a university raises its tuition from 3,000 to 3,500. As a result, student enrollment falls...
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If a 4 percent rise in the price of peanut butter lowers the total revenue received by the producers of peanut butter by 4 percent, the demand for peanut butter is

a.            elastic.

b.            inelastic

2.            The cross elasticity of demand between Coca-Cola and Pepsi-Cola is

a.            negative, that is, Coke and Pepsi are substitutes

b.            positive, that is, Coke and Pepsi are substitutes.

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