Final answer:
The intersection of the aggregate demand and aggregate supply curves determines the equilibrium level of real domestic output and prices, indicating the state of balance in the economy where there is no excess supply or demand. Option B is the correct answer.
Step-by-step explanation:
The question at hand is concerned with the concept of equilibrium in the context of macroeconomics, specifically within the Aggregate Demand/Aggregate Supply model. The intersection of the aggregate supply (AS) and aggregate demand (AD) curves is a critical point that signifies the equilibrium state of an economy. This is where the real Gross Domestic Product (GDP) and the price level balance out, indicating the amount of goods and services produced within the economy, and the price at which they're sold.
When we consider the AS/AD model, we should think of the AD curve as reflecting the entire spending on the nation's goods and services at various price levels, including components like consumption spending, investment spending, government spending, and net exports. This curve slopes downwards, indicating that higher price levels can lead to a decline in the aggregate quantity of goods and services demanded.
On the flip side, the AS curve showcases the total production that businesses are willing and able to provide at different price levels. As prices rise, it's typical for supply to increase as well—firms are generally more incentivized to produce more when they can sell their goods at higher prices, up to a certain point.
Therefore, the point at which these two curves meet is where neither excess supply nor excess demand exists. The economy finds its balance here, determining both the equilibrium level of real domestic output (real GDP) and corresponding prices. Any fluctuation away from this point would lead to either excess supply (surpluses) or excess demand (shortages), prompting adjustments in price levels and output until equilibrium is restored.
The correct answer to the question, "The intersection of the aggregate demand and aggregate supply curves determines the," is b. equilibrium level of real domestic output and prices.