What are the average fixed cost, average variable cost and average cost of a firm? How are they related?
Average Fixed Cost: It is defined as the fixed cost per unit of output.
AFC=
Where, TFC = Total fixed cost
Q = Quantity of output produced
Average Variable Cost: It is defined as the variable cost per unit of output.
AVC=
Where, TVC = Total variable cost
Q = Quantity of output produced
Average Cost: It is defined as the total cost per unit of output. Average cost is derived by dividing total cost by quantity of output.
AC=
AC is also defined as the sum total of average fixed cost and average variable cost.
AC = AFC + AVC
Relationship between AC, AFC, AVC:
1) AVC and AFC are derived from AC as AC = AFC + AVC.
2) The plot for AFC is a rectangular hyperbola and falls continuously as the quantity of output increases.
3) The minimum point of AVC will always exist to the left of the minimum point of AC; i.e., point will always lie left to point M
4) AFC being a rectangular hyperbola falls throughout; this causes the difference between AC and AVC to keep decreasing at higher output levels. However, it should be noted that AVC and AC can never intersect each other. If they intersect at any point, it would imply that AC and AVC are equal at that point. However, this is not possible as AFC will never be zero because it is a rectangular hyperbola that never touches x-axis.
5) AC inherits shape from AVCs shape and it is because of law of variable proportions that both the curves are U-shaped.
What is the total product of input?
When does a production function satisfy decreasing returns to scale?
Why does the SMC curve cut the AVC curve at the minimum point of the AVC curve?
What do the long-run marginal cost and the average cost curves look like?
The following table gives the total product schedule of labour. Find the corresponding average product and marginal product schedules of labour.
Explain the relationship between the marginal products and the total product of an input.
Let the production function of a firm be Q=5L1/2K1/2Q=5L1/2K1/2 Find out the maximum possible output that the firm can produce with 100 units of LL and 100 units of KK.
What does the average fixed cost curve look like? Why does it look so?
What is the law of diminishing marginal product?
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 are the characteristics of a perfectly competitive market?
What do you mean by the budget set of a consumer?
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?
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?
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.
At what level of price do the firms in a perfectly competitive market supply when free entry and exit is allowed in the market? How is the equilibrium quantity determined in such a market?
Suppose there are two consumers in the market for a good and their demand functions are as follows:
d1(p) = 20 – p for any price less than or equal to 20, and d1(p) = 0 at any price greater than 20.
d2(p) = 30 – 2p for any price less than or equal to 15 and d1(p) = 0 at any price greater than 15.
Find out the market demand function.
How does the budget line change if the consumer’s income increases to Rs 40 but the prices remain unchanged?
What do you mean by the production possibilities of an economy?
Explain why the budget line is downward sloping.
Suppose a consumer wants to consume two goods which are available only in
integer units. The two goods are equally priced at Rs 10 and the consumer’s
income is Rs 40.
(i) Write down all the bundles that are available to the consumer.
(ii) Among the bundles that are available to the consumer, identify those which cost her exactly Rs 40.
What is the supply curve of a firm in the short run?
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.
What will happen if the price prevailing in the market is?
i. Above the equilibrium price
Ii. Below the equilibrium price