Macroeconomic Fundamentals: Aggregate Demand and Supply

Aggregate Demand and Aggregate Supply

Aggregate demand is the sum of consumer spending, businesses, and other factors. Prices depend on the level of monetary policy, politics, discretionary factors, and more. Aggregate demand components include consumption goods that individuals purchase, such as food and clothing, and capital goods like factories, as well as real purchases by the State, such as trains.

Aggregate supply is the total amount of goods and services companies in a country are willing to produce and sell in a given period, given the prices, production capacity, costs, and market conditions.

The Aggregate Demand and Supply Curves

The aggregate demand curve shows the relationship between the general level of prices and aggregate expenditure in the economy. It represents the amount of goods and services that firms are willing to produce and sell at each of the remaining constant price levels and other determinants of aggregate supply.

The aggregate supply curve shows the relationship between the price level and the total quantity that firms are willing to offer.

Potential Product and Macroeconomic Equilibrium

The potential product is the level that would be reached when all productive resources are employed.

Macroeconomic equilibrium is a combination of price and quantity for the overall economy where neither buyers nor sellers want to alter their sales or purchases. In this state, the price level will not be pressured either upward or downward.

Understanding Unemployment

Unemployment affects those people in the workforce who qualify by age, physical ability, and other factors to perform paid work but are not currently finding employment.

Types of Unemployment

• Cyclical unemployment: This occurs when workers and productive factors generally remain idle because spending in the economy for some periods is insufficient to employ all resources.
• Seasonal unemployment: This is caused by changes in labor demand at specific times of the year.
• Frictional unemployment: This is linked to the normal operation of the labor market. It occurs when workers leave their jobs to seek another, better position.
• Structural unemployment: This is due to mismatches between the skills or the location of the workforce and the skills required by the employer.

The Effects of Unemployment

Regarding the effects of unemployment, there are significant economic and social consequences:

Economic Effects

• Fall in real output: The existence of unemployment implies a misallocation and decrease of resources.
• Decrease in demand: The income level of individuals decreases when passing to the condition of being unemployed.
• Rising public deficit: If unemployment increases, the public sector must face increased spending on unemployment benefits while taxes on labor will be reduced.

Social Effects

• Negative psychological effects: For many, work is a factor of self-esteem and a social identifier.
• Discriminatory effects: Unemployment does not affect all individuals equally, as it can involve discrimination based on age, sex, or national origin.