Supply

Supply refers to the quantity of a good or service that producers are willing and able to sell at a given price over a specific period of time. It is a fundamental concept in economics, as it interacts with demand to determine market prices and quantities. Understanding supply helps explain how firms make production decisions and how markets allocate resources efficiently. In the OCR GCSE Economics course, you will explore the law of supply, which states that as price increases, the quantity supplied typically increases, and vice versa, assuming all other factors remain constant.

The concept of supply is crucial for analysing real-world markets, such as the housing market, agricultural markets, or the market for smartphones. For example, if the price of wheat rises, farmers are incentivised to grow more wheat, increasing the quantity supplied. However, supply is not just about price; it is also influenced by factors like production costs, technology, taxes, and subsidies. These factors can shift the entire supply curve, leading to changes in market equilibrium. Mastering supply will enable you to evaluate how businesses respond to changing economic conditions and government policies.

Supply fits into the wider subject of economics by forming one half of the supply and demand model, which is the cornerstone of microeconomics. Alongside demand, supply helps explain price determination and resource allocation. In the OCR GCSE specification, you will also learn about price elasticity of supply (PES), which measures how responsive quantity supplied is to a change in price. This topic connects to production, costs, and revenue, as well as market structures. By understanding supply, you will be better equipped to analyse issues like market failure, government intervention, and the impact of globalisation on UK businesses.