Summary of Business Cycles: Phases, Indicators, and Causes

## Introduction The **business cycle** describes the natural rise and fall of economic activity over time. Economies go through repeating phases of growth and decline that affect production, employment, prices, and people's living standards. This guide breaks the cycle into clear parts, explains key terms, gives examples, and shows how real events and policy respond during each phase. > **Definition:** The business cycle is the sequence of expansions and contractions in an economy measured by changes in real GDP, employment, and other economic activity over time. ## Main Phases of the Business Cycle ### 1. Prosperity (Peak) - High confidence among businesses and consumers - Strong investment, production, and spending; real GDP is rising - Employment is high and wages often increase - Demand can outstrip supply, creating shortages and upward pressure on prices (inflation) - Central banks (e.g., the SARB) may raise interest rates to curb inflation > **Definition:** The peak is the highest turning point in the business cycle, where output and employment are at their maximum before a downturn. Practical example: When a country hosts a major international event, tourism, construction, and services surge, pushing GDP and employment up and possibly causing short-term supply bottlenecks. ### 2. Recession - Economic activity slows after the peak; real GDP falls and growth becomes negative - Business confidence drops; firms reduce investment and cut production - Unemployment rises as firms retrench workers - Household incomes fall and consumer spending drops - Higher interest rates and high prices discourage borrowing and consumption - Falling demand and higher production costs further reduce output > **Definition:** A recession is a period of decline in economic activity; a technical recession is defined as two consecutive quarters of negative economic growth. Special cases: - **Technical recession:** Two consecutive quarters of negative real GDP growth. - **Double-dip recession:** A recession followed by a short recovery and then another recession. Practical example: After a housing bubble bursts, construction falls, homeowners cut spending, and banks tighten lending, deepening the downturn. ### 3. Depression (Severe Contraction) - Very low confidence and pessimism among consumers and firms - Investment drops almost to zero; production declines sharply and continuously - Extremely high unemployment; many businesses close or go bankrupt - Household incomes and spending collapse; defaults and repossessions rise - Profits fall and many firms experience heavy losses - Real GDP falls significantly; low demand often keeps inflation low and authorities may cut interest rates to stimulate activity > **Definition:** A depression is an extreme and prolonged downturn in economic activity with very high unemployment and large declines in output. Practical example: The Great Depression of the 1930s featured massive unemployment, widespread bankruptcies, and deep, prolonged falls in output. ### 4. Recovery - Begins after the trough; economic activity slowly improves - Production increases and real GDP starts rising again - Business confidence returns, encouraging investment in capital stock - Employment rises as firms hire more workers - Higher incomes stimulate consumer demand and spending, reinforcing growth - The recovery continues until real GDP returns to its long-run potential level > **Definition:** The trough is the lowest turning point in the business cycle, where economic activity bottoms out before recovery begins. Practical example: After a recession, government stimulus and lower interest rates can help businesses invest again and consumers spend, setting the stage for recovery. ## Expansion vs Contraction (Quick Comparison Table) | Feature | Expansion (Recovery + Prosperity) | Contraction (Recession + Depression) | |---|---:|---:| | Direction of GDP | Rising | Falling | | Employment | Increasing, low unemployment | Decr