Understanding Economics
Module 2 • Foundations: How Economies Work
Lesson 1

What Is an Economy?

Every society must decide how resources will be used, what will be produced, how work will be organized, and how goods and services will be distributed. An economy is the broad system through which those activities take place.

20–25 minutesEconomic Foundations

Learning Objectives

By the end of this lesson, you should be able to:

  • Explain what economists mean by an economy.
  • Describe why scarcity requires individuals and societies to make choices.
  • Identify the major categories of resources used to produce goods and services.
  • Explain the basic economic questions of what to produce, how to produce it, and who receives the results.
  • Describe several ways economic decisions can be coordinated.
  • Identify the roles of households, businesses, governments, and other institutions in an economy.
  • Distinguish between factual economic questions and questions involving values or priorities.

Before You Begin

What decisions have to be made before you can buy a loaf of bread?

A loaf of bread on a store shelf is the result of many economic decisions. Someone grew the grain. Someone produced farm equipment. The grain was transported, processed into flour, baked, packaged, delivered, priced, and placed on a shelf.

Before reading further, consider:

  • Who decided how much bread to produce?
  • Who decided what resources would be used?
  • How were farmers, workers, businesses, and customers connected?
  • What roles did prices, laws, contracts, infrastructure, and government play?

What Is an Economy?

An economy is the system through which people and institutions organize the production, distribution, exchange, and consumption of goods and services.

That includes far more than buying and selling. An economy includes work, businesses, households, natural resources, technology, transportation, finance, laws, public services, and the institutions that establish and enforce the rules under which economic activity occurs.

Economies can be examined at different scales. We can study the economy of a town, a country, a region, or the world. These economies are not isolated. A product purchased locally may depend on materials, workers, financing, technology, and transportation from many countries.

At its most basic level, economics examines how people make choices and coordinate activity when the resources available to them are limited.

Term Check

Economy and economics

An economy is the system of production, distribution, exchange, and consumption itself.

Economics is the study of how people and societies make choices about resources, production, distribution, and consumption.

Scarcity and Choice

One of the starting points of economics is scarcity. Resources are limited, while there are more possible uses for those resources than can all be satisfied at the same time.

Scarcity does not necessarily mean that something is rare or that people are poor. It means that using a resource for one purpose can limit its availability for another purpose.

Land used for housing cannot simultaneously remain undeveloped open space. Money spent on one public program cannot be spent on another unless additional resources are raised. A worker who spends an hour on one task cannot spend that same hour doing something else.

Because choices must be made, choices involve tradeoffs. Choosing more of one thing may mean accepting less of something else.

Economics does not by itself determine which tradeoffs society should choose. It can help identify alternatives, costs, benefits, and likely consequences.

Economic Principle

Choices have opportunity costs.

The opportunity cost of a choice is the value of the next-best alternative that is given up.

If a city uses a parcel of land for a park, for example, the opportunity cost includes the value of the best alternative use of that land. Recognizing opportunity costs helps make tradeoffs visible.

The Resources an Economy Uses

Producing goods and services requires resources. Economists traditionally group productive resources into several broad categories.

Land and Natural Resources

Farmland, forests, water, minerals, energy resources, and other resources supplied by the natural environment.

Labor

Human effort, including physical work, knowledge, training, judgment, creativity, and specialized skills.

Capital

Produced resources used to create other goods and services, such as machinery, tools, buildings, computers, and infrastructure.

Entrepreneurship

The activity of organizing resources, identifying opportunities, making business decisions, and accepting the risks involved in creating or expanding an enterprise.

Term Check

Capital does not simply mean money.

In economics, capital often refers to productive assets such as equipment, factories, tools, and technology. Money can be used to purchase capital, but money and capital are not the same thing.

Three Basic Economic Questions

Every economy, regardless of how it is organized, must answer three broad questions.

1. What will be produced?

How much food, housing, healthcare, transportation, entertainment, military equipment, education, and other goods and services will society produce?

2. How will it be produced?

Which resources, technologies, forms of energy, types of businesses, and methods of organizing labor will be used?

3. Who receives the goods and services?

How will access to what is produced be determined—through income, prices, ownership, public programs, household relationships, or some combination?

The answers can change.

Technology, resources, laws, institutions, culture, consumer preferences, and political decisions can all change the way a society answers these questions.

How Are Economic Decisions Coordinated?

Billions of economic decisions are made every day. No single mechanism coordinates all of them. Societies use several methods at the same time.

Markets

Buyers and sellers make decentralized decisions, with prices helping communicate information about supply, demand, and relative scarcity.

Organizations

Businesses, nonprofits, schools, hospitals, and other organizations make internal decisions about budgets, hiring, production, and resources.

Governments

Governments collect taxes, provide services, establish laws and regulations, build infrastructure, make purchases, and sometimes directly produce goods or services.

Households and Communities

Many decisions about care, household work, sharing, and mutual assistance take place outside formal markets.

Modern economies combine these methods. Even strongly market-oriented economies rely on governments, organizations, households, laws, and social institutions. Governments likewise operate within economies that also contain private businesses and markets.

Key Idea

An economy is more than a market.

Markets are important mechanisms for coordinating economic activity, but they are only one part of an economy. Families, businesses, governments, nonprofits, laws, infrastructure, customs, and other institutions also influence how resources are used and how goods and services are distributed.

Why Economic Institutions Matter

Economic activity depends on institutions: established rules and organizations that shape how people interact.

Property law helps determine who may use or transfer resources. Contract law provides a framework for agreements. Courts can resolve disputes. Banks and financial institutions connect savers and borrowers. Governments establish currencies, collect taxes, provide public services, and enforce many of the rules governing commerce.

Informal institutions matter as well. Trust, social expectations, professional standards, and cultural practices can influence whether people are willing to cooperate, lend, invest, hire, or trade.

The same basic resources can therefore produce different economic outcomes depending partly on the institutions through which people use them.

Households, Businesses, and Government

Introductory economics often describes an economy as a flow of resources, goods, services, and money among several major groups.

Households supply labor, purchase goods and services, save, invest, and provide substantial amounts of unpaid work and care.

Businesses combine labor, capital, natural resources, technology, and organization to produce goods and services. They pay workers and suppliers and receive revenue from customers.

Governments tax, spend, employ workers, purchase goods and services, provide public goods and programs, transfer income, and establish many of the rules under which economic activity takes place.

These groups are deeply interconnected. A person can simultaneously be a worker, consumer, taxpayer, saver, investor, business owner, and recipient of public services.

What Makes an Economy Successful?

This question has no purely technical answer because people do not always agree about what an economy should accomplish.

Possible goals include:

  • Producing more goods and services
  • Raising living standards
  • Providing opportunities for work and entrepreneurship
  • Maintaining stable prices and employment
  • Reducing poverty and economic insecurity
  • Providing essential public services
  • Encouraging innovation
  • Protecting individual economic freedom
  • Limiting damaging environmental effects
  • Expanding economic opportunity

Some goals can reinforce one another. Others may involve tradeoffs. Policies that promote one goal may sometimes make another harder to achieve.

Economics can provide evidence about these tradeoffs. Deciding how much importance to place on competing goals also involves social and political values.

Term Check

Facts and value judgments

Economists distinguish between positive questions and normative questions.

A positive question asks what is or what is likely to happen—for example, “How did employment change after a particular policy was adopted?” Such questions can, at least in principle, be investigated with evidence.

A normative question asks what should be done—for example, “Should society accept slower economic growth in exchange for greater environmental protection?” Evidence can inform the decision, but the answer also depends on values and priorities.

Keeping these two kinds of questions separate is especially important when discussing controversial economic issues.

Key Takeaways

  • An economy is the broad system through which production, distribution, exchange, and consumption take place.
  • Scarcity means that resources have competing uses, making choices and tradeoffs unavoidable.
  • Opportunity cost is the value of the next-best alternative given up when a choice is made.
  • Productive resources are commonly grouped into natural resources, labor, capital, and entrepreneurship.
  • Every economy must determine what will be produced, how it will be produced, and who will receive what is produced.
  • Economic activity is coordinated through markets, organizations, governments, households, and other institutions.
  • Modern economies do not rely exclusively on either markets or governments.
  • Economic evidence can help explain consequences and tradeoffs, while decisions about economic goals also involve values.

Think Again

Return to the loaf of bread.

Think again about the ordinary loaf of bread described at the beginning of the lesson.

  1. Identify at least four different resources required to produce and deliver it.
  2. Which decisions involved markets and prices?
  3. What institutions or government activities helped make the transaction possible?
  4. Where can you identify scarcity, tradeoffs, or opportunity costs in the process?

Knowledge Check

  1. What is an economy?
  2. What does scarcity mean in economics?
  3. What is an opportunity cost?
  4. What are the major categories of productive resources?
  5. What are the three basic economic questions every society must answer?
  6. Give four different ways economic activity can be coordinated.
  7. Why is an economy broader than a market?
  8. What is the difference between a positive economic question and a normative economic question?

Sources & Further Reading

Where the Concepts Come From

  • OpenStax, Principles of Economics — scarcity, choice, opportunity cost, productive resources, markets, and economic decision-making.
  • Federal Reserve educational resources — introductory material on scarcity, economic choices, productive resources, households, businesses, and government.
  • International Monetary Fund — introductory explanations of economic systems, institutions, markets, and economic policy.
  • Encyclopaedia Britannica — background on economics, economic systems, production, distribution, and consumption.

Looking Ahead

Next Lesson: Markets, Prices, and Supply & Demand

We have established that markets are one of several ways economic activity is coordinated. The next lesson looks more closely at how markets work.

Why do prices rise and fall? How do buyers and sellers respond? And what do economists actually mean when they talk about supply and demand?