How are equilibrium price and quantity affected when income of the consumers
a) Increase
b) Decrease
(a) Increase in income of consumers If the number of firms is assumed to be fixed, then the increase in consumers’ income will lead the equilibrium price to rise. Let us understand how it happens: D1D1 and S1S1 respect the market demand and market supply respectively. The initial equilibrium occurs at E1, where the demand and the supply intersect each other. Due to the increase in consumers’ income, the demand curve will shift rightward parallelly while the supply curve will remain unchanged. Hence, there will be a situation of excees demand, equivalent to (qe-q1). Consequently, the price will continue to rise until it reaches E2 (new equilibrium), where D2D2 intersects the supply curve S1S1. The equilibrium price increases from Pe to P2 and the equilibrium output increases from qe to q2.
(b) Decrease in the income of consumers The decrease in consumer income is depicted by leftward parallel shift to demand curve from D1D1 to D2D2. Consequently at the price Pe there will be an execs supply (qe-q1) resulting the\ price of falls from Pe to P2 and the equilibrium quantity falls qe to q2.
Popular Questions of Class 12 Micro Economics
- Q:-
What is the supply curve of a firm in the long run?
- Q:-
The market price of a good changes from Rs 5 to Rs 20. As a result, the quantity supplied by a firm increases by 15 units. The price elasticity of the firm’s supply curve is 0.5. Find the initial and final output levels of the firm.
- Q:-
A firm earns a revenue of Rs 50 when the market price of a good is Rs 10. The market price increases to Rs 15 and the firm now earns a revenue of Rs 150. What is the price elasticity of the firm’s supply curve?
- Q:-
Distinguish between a centrally planned economy and a market economy.
- Q:-
How does the imposition of a unit tax affect the supply curve of a firm?
- Q:-
A consumer wants to consume two goods. The prices of the two goods are Rs 4
and Rs 5 respectively. The consumer’s income is Rs 20.
(i) Write down the equation of the budget line.
(ii) How much of good 1 can the consumer consume if she spends her entire
income on that good?
(iii) How much of good 2 can she consume if she spends her entire income on
that good?
(iv) What is the slope of the budget line?
Questions 5, 6 and 7 are related to question 4. - Q:-
What is the relation between market price and average revenue of a price-taking firm?
- Q:-
What is budget line?
- Q:-
Suppose there are 20 consumers for a good and they have identical demand functions:
d(p)=10–3pd(p)=10–3p for any price less than or equal to 103103 and d1(p)=0d1(p)=0 at any price greater than 103.
- Q:-
Suppose your friend is indifferent to the bundles (5, 6) and (6, 6). Are the preferences of your friend monotonic?
Recently Viewed Questions of Class 12 Micro Economics
- Q:-
List the three different ways in which oligopoly firms may have.
- Q:-
What is budget line?
- Q:-
There are three identical firms in a market. The following table shows the supply schedule of firm 1. Compute the market supply schedule.
Price (Rs.) SS1 (units) 0
1
2
3
4
5
6
7
80
0
2
4
6
8
10
12
14 - Q:-
Will a profit-maximising firm in a competitive market produce a positive level of output in the short run if the market price is less than the minimum of AVC? Give an explanation.
- Q:-
Suppose your friend is indifferent to the bundles (5, 6) and (6, 6). Are the preferences of your friend monotonic?
- Q:-
In what respect do the supply and demand curves in the labor market differ from those in the goods market?
- Q:-
Suppose a consumer can afford to buy 6 units of good 1 and 8 units of good 2
if she spends her entire income. The prices of the two goods are Rs 6 and Rs 8
respectively. How much is the consumer’s income? - Q:-
A firm earns a revenue of Rs 50 when the market price of a good is Rs 10. The market price increases to Rs 15 and the firm now earns a revenue of Rs 150. What is the price elasticity of the firm’s supply curve?
- Q:-
What do the long-run marginal cost and the average cost curves look like?
- Q:-
The following table shows the total cost schedule of a competitive firm. It is given that the price of the good is Rs 10. Calculate the profit at each output level. Find the profit maximising level of output.
Output TC (Rs.) 0
1
2
3
4
5
6
7
8
9
105
15
22
27
31
38
49
63
81
101
123
- NCERT Chapter