How Prices Are Determined in a Market

Price Determination in a Market In a market economy, prices are determined by the interaction of supply and demand. This process helps allocate scarce resources...

Price Determination in a Market

In a market economy, prices are determined by the interaction of supply and demand. This process helps allocate scarce resources efficiently. Here's how it works:

Supply and Demand

Supply refers to the amount of a good or service that producers are willing and able to sell at various prices. Demand refers to the quantity that consumers are willing and able to purchase at different prices.

Market Equilibrium

The market equilibrium price is the price where the quantity supplied equals the quantity demanded. At this price, the market clears with no surplus or shortage.

Worked Example

Problem: Find the equilibrium price and quantity for a product with the following supply and demand schedules:

Supply: Qs = 1000 + 5P Demand: Qd = 4000 - 10P

Solution:

  1. Set supply equal to demand: 1000 + 5P = 4000 - 10P
  2. Solve for P: 15P = 3000 => P = 200
  3. Substitute P = 200 into either equation to find Q:
    • Supply: Qs = 1000 + 5(200) = 2000
    • Demand: Qd = 4000 - 10(200) = 2000
  4. Therefore, the equilibrium price is $200 and the equilibrium quantity is 2000 units.

Resource Allocation

At the equilibrium price, resources are allocated efficiently. Producers supply the quantity that maximizes profits, and consumers purchase the quantity that maximizes their satisfaction or utility, given their budget constraints.

Market Efficiency

At equilibrium, the market achieves allocative efficiency by allocating goods and services to those who value them most highly. Additionally, the market provides the right signals and incentives for firms to produce the optimal quantity of goods and services.

However, market failures like externalities, public goods, or imperfect competition can prevent the market from achieving economic efficiency. In such cases, government intervention may be warranted to correct the inefficiencies.

#markets #supply-demand #equilibrium-price #resource-allocation #market-efficiency
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📚 Category: GCSE Economics
Last updated: 2025-11-03 15:02 UTC