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Chapter 5

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Gross Domestic Product (GDP) Growth Rate

Topic: Business CyclesChapter: Chapter 5
GDP Growth Rate=(Current Year’s GDP−Previous Year’s GDPPrevious Year’s GDP)×100\text{GDP Growth Rate} = \left( \frac{\text{Current Year's GDP} - \text{Previous Year's GDP}}{\text{Previous Year's GDP}} \right) \times 100
This formula measures the percentage change in a country's total economic output (GDP) from one period to another. A positive growth rate indicates economic expansion, while a negative rate (recession) indicates contraction, both being key characteristics of business cycles. It's a primary indicator of economic health.

Inflation Rate (using Consumer Price Index - CPI)

Topic: Business CyclesChapter: Chapter 5
Inflation Rate=(CPI in Current Period−CPI in Previous PeriodCPI in Previous Period)×100\text{Inflation Rate} = \left( \frac{\text{CPI in Current Period} - \text{CPI in Previous Period}}{\text{CPI in Previous Period}} \right) \times 100
This formula calculates the percentage increase in the general price level of goods and services over a period, typically using the Consumer Price Index (CPI). Inflation tends to rise during expansionary phases and fall during contractions, making it a crucial indicator for monetary policy and economic stability within a business cycle.

Unemployment Rate

Topic: Business CyclesChapter: Chapter 5
Unemployment Rate=(Number of Unemployed PersonsTotal Labor Force)×100\text{Unemployment Rate} = \left( \frac{\text{Number of Unemployed Persons}}{\text{Total Labor Force}} \right) \times 100
This formula measures the percentage of the total labor force that is unemployed but actively seeking employment. Unemployment typically falls during expansionary phases (prosperity) and rises significantly during contractionary phases (recession or depression), serving as a critical lagging indicator of the business cycle.

Gross Domestic Product (GDP) Growth Rate

Topic: Phases and CausesChapter: Chapter 5
GDP Growth Rate=(Current Period GDP−Previous Period GDPPrevious Period GDP)×100\text{GDP Growth Rate} = \left( \frac{\text{Current Period GDP} - \text{Previous Period GDP}}{\text{Previous Period GDP}} \right) \times 100
This formula measures the percentage change in a country's GDP over a specified period. A positive and accelerating growth rate indicates an expansion phase, while a negative growth rate (especially for two consecutive quarters) signifies a contraction or recession phase. It is a primary indicator for identifying the phases of a business cycle.

Unemployment Rate

Topic: Phases and CausesChapter: Chapter 5
Unemployment Rate=(Number of UnemployedLabor Force)×100\text{Unemployment Rate} = \left( \frac{\text{Number of Unemployed}}{\text{Labor Force}} \right) \times 100
The unemployment rate indicates the percentage of the labor force that is unemployed but actively seeking employment. During an expansion phase, the unemployment rate typically falls, reaching its lowest point during the peak. Conversely, it rises during a contraction and is highest during the trough, serving as a crucial lagging indicator of business cycle phases.

Inflation Rate (Consumer Price Index based)

Topic: Phases and CausesChapter: Chapter 5
Inflation Rate=(CPI in Current Period−CPI in Previous PeriodCPI in Previous Period)×100\text{Inflation Rate} = \left( \frac{\text{CPI in Current Period} - \text{CPI in Previous Period}}{\text{CPI in Previous Period}} \right) \times 100
This formula calculates the percentage increase in the general price level of goods and services, often measured by the Consumer Price Index (CPI). Inflation tends to rise during the expansion and peak phases due to increased demand and economic activity, and it typically moderates or falls during contraction and trough phases. It helps in understanding the price dynamics across different business cycle phases.
Chapter 5 Formulas — CA Foundation | Kartavvya