Economics Basics
Economics is the study of how people, businesses, and governments make decisions about scarce resources. Understanding basic economics helps you make sense of the news, your paycheck, and the world around you.
Supply and Demand
The most fundamental concept in economics: the price of anything is determined by the relationship between supply and demand.
- Demand: How much consumers want to buy at each price. As price rises, demand falls (Law of Demand).
- Supply: How much producers are willing to sell at each price. As price rises, supply increases (Law of Supply).
- Equilibrium: The price where supply equals demand — the market "clears."
Example
A drought reduces wheat supply → prices rise → consumers buy less bread, bakers look for alternatives. The market adjusts.
Key Economic Indicators
| Indicator | What It Measures |
|---|---|
| GDP (Gross Domestic Product) | Total value of all goods/services produced in a country in a year |
| Inflation | Rate at which prices rise over time; measured by CPI |
| Unemployment Rate | % of labor force without a job but actively seeking one |
| Interest Rate | Cost of borrowing money; set by central banks |
| Trade Balance | Exports minus imports (surplus = more exports; deficit = more imports) |
Economic Systems
| System | Who decides? | Examples |
|---|---|---|
| Market Economy (Capitalism) | Private individuals and businesses; prices set by supply/demand | USA, UK, Japan |
| Command Economy | Government controls production and prices | North Korea, former USSR |
| Mixed Economy | Blend of market and government control | Most modern nations |
| Traditional Economy | Based on customs and agriculture; limited trade | Some rural communities |
Fiscal vs. Monetary Policy
Fiscal policy: Government adjusts taxes and spending. Monetary policy: Central bank adjusts interest rates and money supply to control inflation and unemployment.
Quick Quiz
Test what you just learned. Choose the best answer for each question.