From the schedule provided below calculate the total revenue, demand curve and the price elasticity of demand:
Quantity |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
Marginal Revenue |
10 |
6 |
2 |
2 |
2 |
0 |
0 |
0 |
- |
Quantity |
MR |
TR |
AR=TR/Q |
Price elasticity of demand |
1 |
10 |
10 |
10/1 = 10 |
- |
2 |
6 |
10 + 6 = 16 |
16/2 = 8 |
½ * 10/1 = 5 |
3 |
2 |
16 + 2 = 18 |
18/3 = 6 |
½ * 8/2 = 2 |
4 |
2 |
18 + 2 = 20 |
20/4 = 5 |
1/1 * 6/3 = 2 |
5 |
2 |
20 + 2 = 22 |
22/5 = 4.4 |
1/0.5 * 5/4 = 2.5 |
6 |
0 |
22 + 0 = 22 |
22/6 = 3.6 |
1/0.9 * 4.5/5 = 1 |
7 |
0 |
22 + 0 = 22 |
22/7 = 3.1 |
1/0.5 * 3.6/6 = 1.2 |
8 |
0 |
22 + 0 =22 |
22/8 = 2.7 |
1/0.4 * 3.1/7 = 11 |
9 |
-5 |
22 + (-5) = 17 |
17/9 = 1.9 |
1/0.8 * 2.7/9 = 0.38 |
Demand Curve: To determine the demand curve, we must first determine the pricing for each unit of quantity. This can be accomplished by multiplying the total revenue values by the quantity. The following are the price ranges:
Quantity |
Marginal revenue |
Total revenue |
Price |
1 |
10 |
10 |
10 |
2 |
6 |
16 |
8 |
3 |
2 |
18 |
6 |
4 |
2 |
20 |
5 |
5 |
2 |
22 |
4.4 |
6 |
2 |
22 |
4.4 |
7 |
0 |
22 |
3.66 |
8 |
0 |
22 |
3.14 |
9 |
0 |
22 |
2.75 |
10 |
-5 |
17 |
1.88 |
List the three different ways in which oligopoly firms may have.
Will the monopolist firm continue to produce in the short run if a loss is incurred at the best short run level of output?
A monopoly firm has a total fixed cost of Rs 100 and has the following demand schedule:
Quantity |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Marginal Revenue |
100 |
90 |
80 |
70 |
60 |
50 |
40 |
30 |
20 |
10 |
Find the short run equilibrium quantity, price and total profit. What would be the equilibrium in the long run? In case the total cost is Rs.1000, describe the equilibrium in the short run and in the long run.
If duo poly behavior is one that is described by Cornet, the market demand curve is given by the equation q = 200 - 4p and both the firms have zero costs, find the quantity supplied by each firm in equilibrium and the equilibrium market price.
Comment on the shape of MR curve in case when TR curve is a
(a) Positively sloped straight line
(b) Horizontal straight line
What would be the shape of the demand curve so that the total revenue curve is?
(a) A positively sloped straight line passing through the origin?
(b) A horizontal line?
What is meant by prices being rigid? How can oligopoly behavior lead to such an outcome?
If the monopolist firm of Exercise 3 was a public sector firm. The government set a rule for its manager to accept the government fixed price as given (i.e. to be a price taker and therefore behave as a firm in a perfectly competitive market). And the government has decided to set the price so that demand and supply in the market are equal. What would be the equilibrium price, quantity and profit in this case?
The market demand curve for a commodity and the total cost for a monopoly firm producing the commodity are given in the schedules below.
Quantity |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Price |
52 |
44 |
37 |
31 |
26 |
22 |
19 |
16 |
13 |
Quantity |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Price |
10 |
60 |
90 |
100 |
102 |
105 |
109 |
115 |
125 |
Use the information given to calculate the following:
(a) The MIR and MC schedules
(b) The quantities for which MIR and MC are equal
(c) The equilibrium quantity of output and the equilibrium price of the commodity
(d) The total revenue, total cost and total profit in the equilibrium
Explain why the demand curve facing a firm under monopolistic competition is negatively sloped.
Explain the concept of a production function
Explain market equilibrium.
Discuss the central problems of an economy.
What are the characteristics of a perfectly competitive market?
What do you mean by the budget set of a consumer?
What is the total product of input?
When do we say that there is an excess demand for a commodity in the market?
What do you mean by the production possibilities of an economy?
How are the total revenue of a firm, market price, and the quantity sold by the firm related to each other?
What is budget line?
If a consumer has monotonic preferences, can she be indifferent between the
bundles (10, 8) and (8, 6)?
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.
What do the long-run marginal cost and the average cost curves look like?
Compare the effect of shift in the demand curve on the equilibrium when the number of firms in the market is fixed with the situation when entry-exit is permitted.
Explain through a diagram the effect of a rightward shift of both the demand and supply curves on equilibrium price and quantity.
Consider a market with two firms. The following table shows the supply schedules of the two firms: the SS1 column gives the supply schedule of firm 1 and the SS2 column gives the supply schedule of firm 2. Compute the market supply schedule.
Price (Rs.) | SS1 (units) | SS2 (units) |
---|---|---|
0 1 2 3 4 5 6 |
0 0 0 1 2 3 4 |
0 0 0 1 2 3 4 |
If the price of a substitute Y of good X increases, what impact does it have on the equilibrium price and quantity of good X?
Can you think of any commodity on which the price ceiling is imposed in India? What may be the consequence of price-ceiling?
What is the ‘price line’?
The following table gives the marginal product schedule of labour. It is also given that the total product of labour is zero at zero level of employment. Calculate the total and average product schedules of labour.