Will a profit-maximising firm in a competitive market ever produce a positive level of output in the range where the marginal cost is falling? Give an explanation.
It is not possible for any perfect competitive firm to produce a positive level of output in a range where MC is falling. This is because according to one of the conditions of profit maximisation MC curve should be positive at the equilibrium level of output.
Let us take an example:
At point Z price equal to MC but MC is falling and is negatively sloped. For any level of output more than Oq0 the firm facing priceMC which implies that the profit can be maximised by increasing the output level further. Hence the point E is the equilibrium point where a profit maximising firm would operate and produce Oq1 units of output and its profit will be maximized.
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.
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?
What is the supply curve of a firm in the long run?
How does the imposition of a unit tax affect the supply curve of a firm?
What is the relation between market price and average revenue of a price-taking firm?
What is the relation between market price and marginal revenue of a price-taking firm?
How does an increase in the number of firms in a market affect the market supply curve?
How does an increase in the price of an input affect the supply curve of a firm?
Compute the total revenue, marginal revenue and average revenue schedules in the following table. Market price of each unit of the good is Rs 10.
Quantity Sold | TR | MR | AR |
---|---|---|---|
0 1 2 3 4 5 6 |
How does technological progress affect the supply curve of a firm?
Explain the concept of a production function
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?
Explain market equilibrium.
Discuss the central problems of an economy.
What do you mean by the budget set of a consumer?
What is the total product of input?
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 |
- |
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?
What is budget line?
The following table shows the total cost schedule of a firm. What is the total fixed cost schedule of this firm? Calculate the TVC, AFC, AVC, SAC and SMC schedules of the firm.
How are the equilibrium price and quantity affected when?
(a) Both demand and supply curves shift in the same direction?
(b) Demand and supply curves shift in opposite directions?
When does a production function satisfy constant returns to scale?
What is the marginal product of an input?
What is the law of variable proportions?
What is the total product of input?
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.
Can there be some fixed cost in the long run? If not, why?
At which point does the SMC curve intersect the SAC curve? Give a reason in support of your answer.
Suppose the demand and supply curve of commodity XX in a perfectly competitive market are given by:
qD =700 - p
qs = 500 + 3p for p ≥ 15
= 0 or 0 ≤ p <15
Assume that the market consists of identical firms. Identify the reason behind the market supply of commodity X being zero at any price less than Rs 15. What will be the equilibrium price for this commodity? At equilibrium, what quantity of X will be produced?