Business Cycle (Trade Cycle): Meaning, Phases, Features & Keynesian View

Business Cycle (Trade Cycle)By lunotes.in


🔷 Definition

➡ A business cycle (also called trade cycle) is the wave-like fluctuation in a nation’s aggregate economic activity.
➡ It consists of alternating periods of expansion (growth) and contraction (decline), which occur repeatedly but not at fixed intervals.

🧠 Keynes’s Definition:

"A trade cycle is composed of periods of good trade characterized by rising prices and low unemployment, alternating with periods of bad trade characterized by falling prices and high unemployment."
J.M. Keynes


📌 Key Features of Trade Cycle

Wavelike Movement
↳ Economic activity rises and falls like waves.

Not Regular but Recurrent
↳ Cycles occur again and again, though not at regular time intervals.

Multiple Phases
↳ Prosperity → Recession → Depression → Recovery

Types of Cycles
↳ 🔹 Primary (4–8+ years)
↳ 🔹 Minor (3–4 years)

Duration
↳ Usually lasts between 2 to 12 years.

Affects All Sectors
↳ Output, employment, investment, prices, interest rates – all fluctuate.

Cumulative Effect
↳ Growth or decline intensifies over time.

Creates Uncertainty
↳ Income from business is unstable, making planning difficult.

Global Impact
↳ Trade cycles can affect multiple countries (e.g., 1930s Great Depression).

Phases of Business Cycle


🟢 1. Expansion (Boom or Prosperity)

✅ The most favorable phase of the economy.
🎯 Every country aims to reach and sustain this phase.

➡️ High production and income
➡️ Full employment achieved
➡️ Prices and wages rise
➡️ Businesses earn high profits
➡️ More bank loans and credit availability
➡️ Increased consumption and investment
➡️ Optimism in the economy
➡️ ROI increases (but slower than profit)

🔻 Initial signs of slowdown begin here (e.g. inflation, resource shortages)


🟠 2. Recession

🔺 Begins when the expansion slows down

➡️ Rising costs due to shortages
➡️ Declining profits lead some firms to shut down
➡️ Fall in investment → fall in income → fall in employment (🔄 reverse multiplier effect)

📉 Income & output fall
📉 Unemployment rises
📉 Prices and wages start falling
📉 Demand for goods declines
📉 Credit borrowing reduces
📉 Consumer confidence falls


🔴 3. Depression

🚨 The lowest point in the cycle — economic activities nearly halt

➡️ Very low income and output
➡️ Massive unemployment
➡️ Sharp fall in prices and profits
➡️ Investment and credit demand drop drastically
➡️ Businesses stop replacing old machinery
➡️ Widespread pessimism in the economy

But eventually, some factors bring an end to this phase...


🟡 4. Recovery

🌱 Turning point where the economy starts bouncing back

➡️ New investments begin (e.g. replacing old machines)
➡️ Income & output start rising
➡️ Employment improves
➡️ Demand increases
➡️ Prices and profits rise
➡️ Optimism returns
➡️ Credit demand picks up again

💡 Recovery becomes self-sustaining if the revival spreads throughout the economy.

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