Free online courseMicroeconomics: Basic Economics Concepts

Course Description

Build a strong foundation in microeconomics by learning how everyday choices, business decisions, and public policies are shaped by incentives, scarcity, and trade-offs. This free online course is designed to help you think like an economist, using clear explanations and targeted practice to turn key ideas into skills you can apply on tests and in real life. Whether you are starting economics for the first time or reviewing for a unit exam, you will gain confidence interpreting graphs, reading market changes, and explaining outcomes with economic reasoning.

You will work through the core logic of free markets, including how prices guide resource allocation and why voluntary exchange can make both sides better off. Concepts such as opportunity cost and production possibilities help you evaluate what is given up when a choice is made, and how efficiency and growth show up in simple models. You will also explore how comparative advantage explains the gains from trade between people and countries, and how terms of trade determine whether exchange is mutually beneficial.

As you move into market analysis, you will strengthen your understanding of demand and supply, equilibrium, and what causes movements along curves versus shifts of the curves themselves. You will practice predicting how shocks such as changes in income, tastes, costs, or seasons affect price and quantity. You will also learn to use elasticity to connect price changes to consumer response and business revenue, making it easier to explain why some products can raise prices without losing many customers while others cannot.

The course connects market outcomes to real policy questions by examining intervention tools like price ceilings and taxes, including how shortages, surpluses, and tax incidence emerge. You will then build intuition about production and firms by relating diminishing marginal returns to cost behavior, distinguishing fixed from variable costs, and understanding how economies of scale shape long-run decisions. Finally, you will connect costs and revenues to profit maximization, the shutdown rule, and the logic of competition, giving you a coherent picture of how firms operate in different market environments.

Throughout, the experience is highly practical: short lessons are paired with frequent questions that train you to spot the right concept quickly, avoid common traps, and explain your reasoning. By the end, you will be able to interpret standard microeconomics models with clarity, defend your answers, and approach new scenarios with the structured mindset economists use to make sense of the world.