What is aggregate supply?

• A. The total demand of goods and services in an economy
• B. The total supply of goods and services planned for sale by firms
• C. The total spending by consumers in a market
• D. The overall price level of services offered

Answer: (B)

Aggregate supply refers to the total quantity of goods and services that firms are willing and able to produce and sell in an economy at a given overall price level during a specific time period. This concept captures the production capabilities of the economy, reflecting how much is produced based on available resources, technology, and the number of firms operating.

The correct answer highlights that aggregate supply is fundamentally about what producers plan to sell, which encompasses their production decisions influenced by factors like input costs, labor availability, regulatory environment, and overall economic conditions. By focusing on firms' planned output, this definition aligns with key economic principles that govern supply dynamics.

In contrast, the other options focus on different aspects of economic interactions. Total demand of goods and services pertains to consumer behavior and market needs instead of production capabilities. Total spending by consumers focuses exclusively on demand rather than supply aspects. The overall price level of services offered is a description of prices in the market but does not encapsulate the production side of the economy. Collectively, these alternatives do not capture the essence of aggregate supply in the way that the chosen definition does.