Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Learn it your way
A short class with Sarah and her students. The other ways are under More.
Sign up free to listen. Transcripts are free to read.
Welcome class! Today, we are discussing the long run supply curve of a firm. Can anyone tell me how long run decisions differ from short-run ones?
In the long run, firms can change all inputs, whereas in the short run only some inputs can be adjusted.
Exactly! In the long run, firms can adjust their production levels entirely based on market conditions. Now, what is the significance of the average cost in determining the supply curve?
The long run supply curve is closely linked to average costs, right? If the market price is below the average cost, firms can't sustain production.
Correct! This also leads us to the concept of the shut down point. Can anyone explain what that is?
It's the point where the price is less than the average cost, meaning firms will stop producing.
Great insight! So firms will exit the market if the price doesn't cover their long run average costs.
To summarize: The long run supply curve reflects how firms react to prices in relation to their average costs, influencing their production decisions.
Now, let’s discuss profit maximization. What are the critical conditions a firm must meet in the long run?
The price must equal the long run marginal cost, right?
Exactly! That's the first condition. What else?
I think the LRMC must be non-decreasing at the maximum output?
Correct! And the third condition relates to average costs. Can someone explain that?
The price should be greater than or equal to the LRAC to cover total costs.
Well said! Remember, these conditions ensure that firms can sustain themselves and operate efficiently in the long run.
To recap: A profit-maximizing firm must ensure that price equals marginal costs, maintain costs, and cover average costs.
Let’s talk about how market price changes can influence the supply curve. If the market price increases, what happens to the supply curve?
Firms will want to supply more because they can cover their costs and make profits.
Absolutely! A rightward shift in the supply curve indicates increased output. What can cause a leftward shift then?
If input prices increase, the costs go up, which might decrease the quantity supplied.
Exactly. It’s important for firms to adjust quickly to these changes to remain competitive.
Remember, a firm’s supply curve is sensitive not just to its costs but also to overall market conditions.
To summarize: Price increases lead to more output, while rising costs can reduce output, shifting the supply curve.
Cost low, produce more, keep the profit in store.
Imagine a farmer who grows apples. When the apple price rises, he plants more trees, maximizing his harvest. If he can't cover his costs, he won't plant at all, reflecting the shut down point.
To remember profit maximization conditions: P = MC, MC up, price covers AC: PMU (Price - Marginal Cost, Marginal Cost rise, Price covers Average Cost).
LRAC - Long Run Average Cost represents total output divided by the total input over long term.
Term
What is the shut down point?
Click to flip
Term
What does LRMC stand for?
Click to flip
The curve that shows the quantity of goods firms are willing to supply at different prices in the long run, where all inputs can be varied.
Total cost divided by the number of goods produced; a measure of the per-unit cost of production.
The additional cost incurred from producing one more unit of a good.
The price level at which a firm's revenue just covers its variable costs, below which the firm will cease production.
The process by which a firm determines the price and output level that leads to the highest possible level of profit.
This section discusses how firms determine their long run supply curves based on profit maximization conditions, which include costs and market price dynamics.
In this section, we delve into the concept of the long run supply curve of a firm within a perfectly competitive market. We analyze the relationship between market price and average costs, explaining the conditions under which firms maximize profits and how these factors influence the firm's supply curve. We also differentiate between short run and long run supply decisions.
In a perfectly competitive market, the long run supply curve of a firm is crucial for understanding how firms adjust production over time in response to market prices. The long run differs from the short run primarily because firms can adjust all factors of production.
Understanding these elements is essential as they shape the behavior of firms in the market and influence overall market supply dynamics.