Clever Grades

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Factors Influencing Supply

Supply is also influenced by many factors beyond just the price at which a product can be sold.

The Six Key Factors

The following outlines the six primary drivers that shift the supply curve, distinct from changes in price.

1

Production Costs

Input prices (materials, labor) directly impact profit margins.
2

Market Competition

Number of businesses operating in the market.
3

Capacity

The short-term physical limit of production.
4

Weather

Crucial external factor, especially for agriculture.
5

Productivity

Efficiency and technological improvements.
6

Government Policy

Taxation and Subsidies.

Production Costs & Supply

✅
Lower Costs Lower costs have the opposite effect, encouraging supply.
❌
Higher Costs If the costs of materials, labor, or other inputs increase, suppliers may reduce how much they supply at existing prices because profit margins shrink.

The Capacity Ceiling

⚠️

The definition of Capacity: If firms are already operating at maximum capacity, they cannot increase supply even if demand – and prices – rise.

Government Intervention

✅
Subsidies (Support) Subsidies (government financial support) lower effective costs and encourage supply.
❌
Taxes (Cost Burden) Taxes on production increase costs and reduce supply.

The Weather Variable

External Supply Shock

Particularly important in agriculture, extreme weather can reduce supply (e.g., droughts lowering crop yields), causing prices to rise. This is an immediate, high-impact supply constraint.

Productivity Gains

🤔
How do tech improvements influence long-term supply?
💡
Improvements in technology or efficient working methods can reduce production costs and increase supply.

Glossary of Market Structure

Understanding how market participation influences total output.

🏢

Number of Businesses in the Market

More producers in a market increase overall supply, assuming all else equal.
Supply Concepts Deck
Term
Production Costs Increase

What happens to supply when production costs increase?

Answer
Effect

Supply decreases because profit margins shrink.

Term
Number of Businesses

How does the number of businesses in the market affect supply?

Answer
Impact

More businesses increase overall supply.

Term
Capacity

What is meant by 'capacity' in supply?

Answer
Definition

The maximum amount a business can produce in the short term.

Term
Weather Effects

How can weather influence supply?

Answer
Impact

Extreme weather can reduce supply, especially in agriculture.

Term
Productivity

What impact does productivity have on supply?

Answer
Effect

Increased productivity lowers costs and increases supply.

Term
Taxes

How do taxes affect supply?

Answer
Impact

Taxes increase production costs and reduce supply.

Term
Subsidies

What effect do subsidies have on supply?

Answer
Effect

Subsidies lower costs and encourage greater supply.

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📈 Supply and Production Factors Quiz

1. Which factor is most likely to decrease supply due to increased costs?

Increased material costs raise production costs, reducing supply.

2. If a drought occurs, what happens to the supply of crops?

Extreme weather like drought reduces crop yields, lowering supply.

3. How do subsidies affect supply?

Subsidies lower effective costs, encouraging suppliers to produce more.

4. What limits a business’s ability to increase supply in the short term?

Firms operating at full capacity cannot increase output despite higher demand.

📊 Results

  • Notes and Quiz
  • Business
  • A Level
  • Marketing
  • OCR