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.
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Why does the SMC curve cut the AVC curve at the minimum point of the AVC curve?
The following table gives the total product schedule of labour. Find the corresponding average product and marginal product schedules of labour.
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What does the average fixed cost curve look like? Why does it look so?
What is the law of variable proportions?
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?
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How will a change in the price of coffee affect the equilibrium price of tea? Explain the effect on equilibrium quantity also through a diagram.
How are the total revenue of a firm, market price, and the quantity sold by the firm related to each other?
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 |
Suppose a consumer’s preferences are monotonic. What can you say about her preference ranking over the bundles (10, 10), (10, 9) and (9, 9)?
What is the relation between market price and marginal revenue of a price-taking firm?
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 8 |
0 0 2 4 6 8 10 12 14 |
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 substitutes? Give examples of two goods which are substitutes of each other.
How is the equilibrium number of firms determined in a market where entry and exit is permitted?