In: Economics
QUESTION 1 [30 marks]
a. Tebogo enjoys her coffee with a few cookies. Assume the price of cookies decreased, how would this affect Tebogo’s demand for coffee? Use a relevant diagram to support your answer.
b. With the use of a diagram, distinguish between change in demand and change in quantity demanded. c. Trade unions always try and get a much higher wage rate than what the market is willing to pay. Using and appropriate explain what will likely happen in the labour market if the wage rate demanded by a trade union is above the market equilibrium wage.
d. Calculate the following different elasticities:
i. A price increase from P2 to P10 causes quantity demanded to change from 80 units to 30 units. Calculate and interpret price elasticity of demand.
ii. Income increase by 10% results in quantity demanded increases by 5%. Calculate and interpret income elasticity of demand.
iii. Quantity of good B increases by 50% because of an increase in price of good A by 40%. Calculate and interpret cross elasticity of demand.
iv. How would a firm manipulate the prices of goods in di-iii in order to maximize revenue and profits?