What Is Economics?

The Science of Choices

Economics is the study of how people, businesses, and governments make decisions about using limited resources. Here's the core problem: people's wants are unlimited, but the resources to fulfill them (time, money, materials, labor) are limited. Economics studies how societies handle that gap — how they decide what to produce, how to produce it, and who gets what.

Goods, Services, and Needs vs. Wants

Goods are physical things you can touch: food, clothes, books, phones. Services are activities people do for others: teaching, doctoring, haircuts, bus driving. Together, goods and services make up everything an economy produces. Needs are things essential for survival: food, water, shelter, clothing. Wants are everything else — video games, vacations, fancy shoes. Understanding the difference between needs and wants is one of the most important financial skills you can develop.

Supply and Demand

Supply is how much of a product sellers are willing to offer. Demand is how much of that product buyers want. When demand is high but supply is low, prices go up (think concert tickets for a popular band). When supply is high but demand is low, prices drop (think winter coats on sale in July). This relationship — the law of supply and demand — is the single most important concept in economics. It explains why diamonds cost more than water, even though water is far more essential to life.

Money, Saving, and Spending

Money is just a tool that makes trading easier. Before money existed, people used barter — trading goods directly (three chickens for a new coat). But barter only works if both people want what the other has. Money solves this by serving as a universal medium of exchange that everyone accepts. Saving means setting money aside for future use. Investing means using money to buy something that you hope will grow in value over time. Both are strategies for making your limited resources work harder.

Why Economics Matters for You

Every decision you make involves economics — even if you don't realize it. Choosing to spend your allowance now vs. saving it for something bigger is an economic decision. Deciding whether to study for a test or play video games involves opportunity cost — what you give up by choosing one option over another. Understanding these concepts helps you make smarter decisions with your time, money, and resources for the rest of your life.

Why This Matters

Economics isn't just about money — it's about how people make choices when they can't have everything they want. Every person, family, business, and government faces limited resources and unlimited wants, and economics provides a framework for understanding these trade-offs. When a child decides to spend their allowance on a toy instead of saving it, they're making an economic decision involving opportunity cost — the value of what they gave up.

Understanding basic economics helps children become informed consumers and citizens. Why do prices go up? Why can't the government just print more money? Why do some jobs pay more than others? Economics provides logical answers to questions that children naturally ask, and these answers build the financial literacy and civic understanding they'll need as adults.

Where Kids Get Stuck

The most abstract concept for children is opportunity cost — the idea that every choice has an invisible cost equal to the next-best alternative you didn't choose. If you spend $10 on a book, the opportunity cost is whatever else you could have bought with that $10. Children tend to think only about what they're getting, not what they're giving up. Using personal examples ("If you choose swimming lessons, you can't also do soccer this season — that's your opportunity cost") makes this concrete.

Another common confusion is the difference between wants and needs. Children often classify everything they desire as a "need." Defining needs as things required for survival and health (food, shelter, clothing, medicine) and wants as everything else helps children begin to prioritize — a skill central to both personal budgeting and economic policy.

Students also struggle with supply and demand. The idea that prices rise when demand increases or supply decreases feels counterintuitive to children who think prices are simply decided by stores. Using examples from their own experience (limited-edition toys, sold-out concert tickets) helps them see market forces in action.

Try This at Home

• Allowance budgeting — Give your child a weekly allowance and have them divide it into three jars: Save, Spend, and Give. Discuss the trade-offs involved in each allocation.
• Lemonade stand economics — Run a lemonade stand and track costs (lemons, sugar, cups) versus revenue. Calculate profit. What happens if you raise the price?
• Grocery comparison — Compare prices of the same product across brands. Why might one brand cost more? Discuss quality, packaging, and advertising.
• Supply and demand simulation — Auction a small treat among family members. Start with plenty (low price) then reduce supply (price goes up). Experience market forces firsthand.

For more ideas, see our guide: Helping a Child Who Hates School.

Last reviewed: May 2026