Aggregate demand is an economic term used to describe the total demand for goods and services in an economy. It is often represented by a graph that shows how much people are willing to buy at different prices. The aggregate demand curve shows the relationship between price and quantity demanded, and is often used to show how macroeconomic factors can impact the economy.

There are several factors that can shift the aggregate demand curve, including changes in government spending, taxes, and interest rates. A change in any of these factors can lead to a change in the overall level of economic activity.

Economics is the study of how people use resources to satisfy their needs and wants. It focuses on the behaviour of individuals, firms, and governments and how they interact with each other. Economics also looks at how market economies work and how government policies can impact the economy.

Aggregate demand is an important concept in economics because it helps us understand how the economy works and how government policies can affect economic activity.