What term describes the amount of goods and services that producers are willing to sell at a given price?

The correct term for the amount of goods and services that producers are willing to sell at a given price is supply. This concept is fundamental in economics as it reflects producers' willingness and ability to sell products in response to price levels in the market. When prices rise, producers typically supply more of a product because the potential for increased revenue encourages them to do so. Conversely, if prices fall, the quantity they are willing to supply generally decreases. Understanding supply helps in analyzing market dynamics, setting prices, and predicting producers' responses to changes in the market conditions.

Demand refers to the quantity of goods and services that consumers are willing to purchase at different price levels, which is a separate concept from supply. Market equilibrium is the state where supply equals demand, leading to a stable market with no surplus or shortage of goods. Opportunity cost measures the value of the next best alternative foregone when making a choice, which does not relate directly to the willingness of producers to sell at a given price.