Which of the following best describes a market (aggregate) supply schedule?

A market (aggregate) supply schedule is accurately described as a table that shows the total quantities of a good that all firms in the market are willing to supply at each price level. This schedule aggregates the supply from all producers, allowing for an understanding of the overall market behavior regarding how much of a good will be available for sale as prices change.

The significance of this supply schedule lies in its ability to illustrate the relationship between price and quantity supplied, which is fundamental in microeconomics. As prices increase, typically, firms are incentivized to supply more goods to maximize profits, highlighting the principle of the law of supply.

In contrast, a list of consumer preferences at various prices refers to demand rather than supply. A document detailing costs associated with production may inform supply decisions but does not illustrate the quantity supplied at various price levels. Lastly, a graph tracking market demand over time is oriented towards consumer behavior rather than the supply dynamics of producers in the market. Collectively, these distinctions emphasize why the choice identifying the aggregate supply schedule is the most accurate in describing market supply dynamics.