In a particular market, demand and supply curves are defined by the following equations: P=50 – 0.5QD QS= -20 + 2P where, P is the price in pounds, QS is the quantity supplied and QD is the quantity demanded. 1. What is the equilibrium price and quantity? 2. What is the price elasticity at a price of £35? 3. What do you expect will happen to total expenditure on this good if the price increases from £35 to £40? Is this expectation confirmed if you calculate the total revenue for each price?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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In a particular market, demand and supply curves are defined by the following equations:

P=50 – 0.5QD

QS= -20 + 2P

where, P is the price in pounds, QS is the quantity supplied and QD is the quantity demanded.

1. What is the equilibrium price and quantity?

2. What is the price elasticity at a price of £35?

3. What do you expect will happen to total expenditure on this good if the price increases from £35 to £40? Is this expectation confirmed if you calculate the total revenue for each price?

 

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