Supply and Demand
Supply and Demand
The interaction between sellers' willingness to supply and buyers' willingness to purchase that helps determine market prices and quantities.
Supply and demand is the relationship between availability, desire, and price determination in markets.
Prices Coordinate Buyers and Sellers
A market price is not simply chosen by either buyers or sellers alone. It emerges from the interaction of competing offers, preferences, scarcity, costs, and alternatives.
When supply or demand changes, the price can adjust as market participants respond to the new conditions.
What Are Supply and Demand?
Demand describes buyers' willingness and ability to purchase at different prices. Supply describes sellers' willingness and ability to offer goods or services at different prices.
The market price helps coordinate those decisions by signaling scarcity and willingness to exchange.
Demand and Supply Side by Side
The two sides of the market respond to different incentives.
Generally reflects buyers' preferences, incomes, alternatives, expectations, and willingness to pay.
Generally reflects production costs, technology, available resources, alternatives, and sellers' willingness to offer.
What Can Shift a Market?
Price changes can result from changes on either side.
How Market Adjustment Works
A simplified process is:
Why It Matters for Monetary Literacy
Supply and demand help distinguish relative price changes from changes in the purchasing power of money itself.
A price can rise because a good became scarcer, because demand increased, because the monetary unit lost purchasing power, or because several forces occurred at once.
Prices are signals produced by the interaction of scarcity, preferences, costs, and competing opportunities.
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