What is the quantity of a good or service that producers are willing to sell at a given price called?

The quantity of a good or service that producers are willing to sell at a given price is referred to as supply. Supply reflects the relationship between the price of the good or service and the amount that producers are ready to sell in the market at that price. It's a key concept in economics as it helps to understand how producers respond to price changes and market conditions.

In markets, an increase in price typically leads to an increase in the quantity supplied, as higher prices can make production more profitable, incentivizing producers to supply more. Conversely, if prices decrease, producers may reduce supply since the incentive to produce is lowered. This dynamic is central to the workings of supply and demand in economic theory.

The other terms listed are related but represent different concepts within economics. Demand refers to the quantity of a good or service that consumers are willing to purchase at different prices. Equilibrium is the point at which the quantity supplied equals the quantity demanded, and market value typically refers to the price at which a good or service is traded in the market rather than the quantity supplied. Understanding supply is essential for analyzing market behaviors and price movements.