2.2: supply Flashcards
Supply
Quantity of goods and services that firms are willing and able to sell at any given price per time period
Law of supply
The positive correlation between quantity supplied of a product and its price, Ceteris paribus.
Reasons for the law of supply
- existing firms can earn higher profit if they supply more when the price increases
- new firms will enter the market, attracted by high profit margins
Assumptions of the law of supply
1) law of diminishing marginal returns
2) increasing marginal costs
Law of diminishing marginal returns
- describes how output is affected when a firm uses more factors of production while maintaining at least one factor (usually capital) fixed in the long run
- By employing additional factors of production, the marginal return (additional output) will eventually decline
Marginal cost
Cost of producing a n additional unit of output
Increasing marginal costs
- Marginal cost roses with each successive unit produced owing to diminishing marginal returns.
- higher prices are needed to cover higher marginal costs of production when a firm increases output
Supply curve
Illustrates the positive relationship between price and quantity supplied
Market supply
Sum of all individual supply of a product at each price level
Non-price determinants of supply
C - cost of factors of production R - related goods price I - indirect taxes S - subsidies T - changes in technology E - expectations of future price N - number of firms in industry
Acronym CRISTEN
Change in cost of factors of production as a non-price determinant of supply
higher cost of production factors leads to a lesser profit margin and less supply
Price of related goods
Either as joint or competitive supply
Competitive supply
- Output of one product prevents or limits the output of alternative products due to competing resources or limited time.
- increase in the price of one leads to a decrease in supply for the other
Joint supply
- Two products that are related to one another in production, one is often referred to as the by-product
- increase in the production of x leads to an increase in the production of y
- price/supply change in principal product = positive change on all by-products
Indirect taxes
- Government levies on expenditure rather than income that are imposed on goods and services
- increase in price paid by consumers and adds to cost of production
- reduces profits and reduces supply