Price

Price is the money or other value exchanged to acquire a good, service, or asset. It can be set by agreement, a seller, or a market.

Supply and demand: A model of how the quantities offered and sought influence a market price and the amount traded. Their interaction helps explain how competitive markets form prices.
Money: A widely accepted medium of exchange, unit of account, and store of value. Money expresses many prices in a common unit.
Cost-plus pricing: A pricing method that adds a markup to estimated production or acquisition costs. It links a seller's cost estimate directly to the quoted price.
Price level: A measure of the average prices of goods and services in an economy at a given time. A general price level summarizes many prices rather than naming one exchange amount.
Consumer surplus: The difference between what buyers are willing to pay and what they actually pay. A market price determines how much value buyers retain from a transaction.
Price mechanism: The process by which prices communicate scarcity and coordinate economic decisions. It describes how price changes can guide production and purchasing.
Value (economics): The worth or benefit assigned to a good, service, or resource in economic analysis. A price is an exchange amount, not necessarily the buyer's or seller's full valuation.
Dynamic pricing: A pricing strategy that changes prices over time in response to demand, supply, or other conditions. It illustrates prices that adjust as market conditions change.
Inflation: A sustained increase in the general price level of an economy over time. Inflation concerns broad price movement, not a single good's price.
Producer surplus: The difference between the price sellers receive and the minimum they would accept. The transaction price affects the gains sellers receive from exchange.

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