3.1.2: Supply, Demand & Price
The fundamental forces that determine market prices
The Market Brief: Understanding Price Determination
The Fundamental Question
Why does a bottle of water cost £1 in a supermarket but £3 at a concert venue? Why do hotel prices surge during holidays? The answer lies in the interaction between supply and demand - the two most powerful forces in any market economy.
DEMAND: The Customer's Side
Definition: The quantity of a product that consumers are willing and able to buy at different prices.
- • Consumer income (normal goods)
- • Prices of substitutes (Pepsi vs Coke)
- • Advertising effectiveness
- • Consumer tastes & preferences
- • Demographics (population age/size)
SUPPLY: The Producer's Side
Definition: The quantity of a product that producers are willing and able to sell at different prices.
- • Cost of raw materials (oil, steel)
- • Technology improvements
- • Taxes & subsidies
- • Number of competitors
- • Weather (agriculture)
EQUILIBRIUM: Where Supply Meets Demand
Equilibrium Price: The price where quantity demanded equals quantity supplied. At this point, the market "clears" - there's no shortage or surplus.
Critical Business Insight
Understanding supply and demand isn't just theory - it's strategic power. Businesses that can predict demand shifts (seasonal patterns, economic cycles) and supply disruptions (raw material shortages, competitor exits) can make profitable pricing decisions before their rivals. The interactive simulations ahead will show you how small market changes create ripple effects through entire industries.
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