Suppose a firm sells two goods, Good A and Good B. Use the following information to answer questions that follow: Profit maximising price of Good A = R6000 MC at profit maximising level of output of Good A = R1200 MC at profit maximising level of output of Good B = R400 Total revenue of Good A = R80000 Total revenue of Good B = R68000 Rothschild index of Good B = 0.6 Price elasticity of the market demand for Good B = -1.2   2.1. Calculate the price elasticity of demand (Ed) for Good A. Ed of Good A =    2.2 Suppose that the firm noticed that when it increased the price of Good A from R4000 to R6000, the sales of Good B decreased from 8000 to

Macroeconomics
13th Edition
ISBN:9781337617390
Author:Roger A. Arnold
Publisher:Roger A. Arnold
Chapter3: Supply And Demand: Theory
Section: Chapter Questions
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Suppose a firm sells two goods, Good A and Good B. Use the following information to answer questions that follow:

Profit maximising price of Good A = R6000

MC at profit maximising level of output of Good A = R1200

MC at profit maximising level of output of Good B = R400

Total revenue of Good A = R80000

Total revenue of Good B = R68000

Rothschild index of Good B = 0.6

Price elasticity of the market demand for Good B = -1.2

 

2.1. Calculate the price elasticity of demand (Ed) for Good A.

Ed of Good A = 

 

2.2 Suppose that the firm noticed that when it increased the price of Good A from R4000 to R6000, the sales of Good B decreased from 8000 to 2000 units. Calculate and classify the cross-price elasticity of demand between Good A and Good B.

Ec = 

Good A and Good B are classified as (substitutes/compliments) 

 

2.3. Use the elasticity coefficient calculated above and the information provided, to calculate by how much the firm’s total combined revenue will change if it decreases the price of Good A by 16%?

Change in combined total revenue = 

2.5. Suppose the firm wishes to increase its sales of Good B by 12%. Calculate by how much (in %) the firm should change the price of Good B to achieve this objective?

Percentage change in price =

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