Business Cycle
A business/economic cycle illustrates the short-term fluctuations of real GDP over time.
Phases of Business Cycle
Expansion
Peak
Recession
Trough
Expansion
Positive growth in real GDP, shown by parts of the curve that slope upward general price level/inflation begins to rise
Peak
A peak represents the cycles maximum real GDP and marks the end of the expansion, price level is rising quite rapidly/high inflation
Recession/contraction
Following the peak, the economy begins to experience falling real GDP shown by downward sloping parts of the curve. If the contraction lasts six months or more it’s termed a recession. Prices may fall.
Trough
Represents the cycles minimum level of GDP, or the end of a contraction. There may be widespread unemployment. A trough is followed by a period of expansion/recovery.
Actual output
Represents the end of the line, or the current GDP.
Potential output
The long-term growth trend in the business cycle illustrates the potential output. (Dashed line)
Meaning of potential in the business cycle
Represents working at natural intensity.