Posted by Dan on Wednesday, April 18, 2007 at 10:35am.
When we are given an expression for the Short Run Total Cost Curve (for eg: 8 +
3Q - 1.5Q^2 + 0.25Q^3), how do you derive expressions for the following:
1. Average Fixed Costs
2. Average Viarable Costs Curve
3. Marginal Costs Curve
4. Short Run Supply Curve
I also have a second question:
In perfect competition, if you are given the firm's total cost curve (for eg:
450 + 15Q + 2Q^2), and you are also given the Price, how do you find out the
firm's profit maximising level of output and it's profit/loss level?
An answer to either of these questions or preferably both would be great.
Your equation: TC = 8 + 3Q - 1.5Q^2 + 0.25Q^3
1) Total fixed costs are 8. So avg fixed costs are 8/Q.
2) Ergo Avg variable costs are (TC-8)/Q
3) Marginal cost is the first derivitive of total costs. (use calculus)
4) Short run supply is marginal cost curve.
Always, always, maximize when MC=MR
For a perfect competitor, MR=Price.
MC is the first derivitive of TC.
Profit/loss = Total revenue - Total cost. and TR=P*Q. Just plug in your maximizing Q.
Answer This Question
More Related Questions
- Microeconomics help please (urgent) - True or False? Explain your reasoning. a...
- economics - This is going to be really long, but I want to see if my answers are...
- Microeconomics - A perfectly competitive industry has a large number of ...
- ECONOMICS - suppose that the short run costs for a paintbrush manufacturer are ...
- economics - if production displays economies of scale, the long run average cost...
- Management & Econ - a) Explain why a short run average cost curve only touches ...
- microeconomics - The short-run cost curve for each firm's long run equilibrium ...
- economics - suppose a firm's constant-returns to scale production function ...
- economics - For the total variable cost (TVC), draw a positive total fixed cost...
- economics - The hand made snuffbox industry is composed of 100 identical firms, ...