Aggregate supply

In economics, aggregate supply (AS) or domestic final supply (DFS) is the total supply of goods and services that firms in a national economy plan on selling during a specific time period. It is the total amount of goods and services that firms are willing and able to sell at a given price level in an economy.

There are two main reasons why the amount of aggregate output supplied might rise as P rises, i.e., why the AS curve is upward sloping:

Aggregate supply is targeted by government "supply side policies" which are meant to increase productive efficiency and hence national output. Some examples of supply side policies include: education and training, research and development, supporting small/medium entrepreneurs, decreasing business taxes, making labor market reforms to diminish frictions that may hold down output, and investing in infrastructure.

There are generally three alternative degrees of price-level responsiveness of aggregate supply. They are:

In the standard aggregate supply–aggregate demand model, real output (Y) is plotted on the horizontal axis and the price level (P) on the vertical axis. The levels of output and the price level are determined by the intersection of the aggregate supply curve with the downward-sloping aggregate demand curve.

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