Econ 101: The Complete Intro to Economics For Beginners

Trace the origins of economics to the industrial revolution and four pillars—democracy, limited liability corporations, patents, and rising literacy—that together shaped markets, incentives, and competition.

Explore scarcity and diminishing returns in economics by examining finite resources, rising value as supply tightens, and how more does not always equal more.

Differentiate microeconomics and macroeconomics by examining local versus global perspectives. Explore how supply and demand, utility, international trade, recessions, and interest rates shape the world and your community.

Learn how supply and demand graphs guide pricing decisions to maximize profit, using gas price examples, and identify the optimal price where supply meets demand, including Nash equilibrium.

Explore how consumers evaluate options to maximize happiness. See how constraints and tradeoffs narrow choices and drive rational selections based on each option's pros and cons.

Examine how rational buyers weigh tradeoffs to maximize personal utility when choosing between electric and gas vehicles for environmental goals. Recognize that each person assigns unique utility, shaping different choices.

Identify resource, technology, and time constraints shaping decisions, using electric cars with waitlists, charging limits, and backlog to illustrate opportunity cost.

Explore diminishing returns through marginal utility, using examples of multiple cars and pizza to show how each additional unit brings less satisfaction.

Identify violations and limitations of the economic choice model through sunk costs, percentage versus absolute savings, and diminishing returns. Examine how marginal utility shapes everyday decisions.

Allocate land, labor, and machinery to optimize output while weighing diminishing returns and costs. Compare apple and orange production choices to illustrate how economists model production decisions.

Choose how much to produce apples and oranges by weighing land, labor, and machinery, while evaluating government intervention with subsidies, taxes, and regulations in a mixed economy.

Learn how price affects quantity demanded using carrot examples, and how demand curves shift, including the impact of a corn shortage on carrot demand.

Explore how supply responds to price and costs, using a carrot market example to show the upward-sloping supply curve, cost influences, and how supply and demand interact at market equilibrium.

Learn how supply and demand intersect to determine equilibrium price and quantity, analyze excess demand and excess supply, and explore how shifts move the curves.

Examine how price ceilings and price floors, such as rent control, disrupt supply and demand, create excess demand or excess supply, and generate market inefficiencies.

Explore utility as a measure of happiness, quantified in Udall's, and learn to maximize it under time and resource constraints through constrained optimization.

Explore cardinal and ordinal utility, showing how economists compare options with numerical values or simple ranking using examples like petting a puppy, taxes, and mowing the grass.

Explore marginal utility and diminishing marginal utility, illustrated with puppy play and favorite foods, showing how the first unit yields the highest satisfaction and later units decline.

Apply marginal utility to allocate scarce resources, weighing time and effort between playing with a puppy and completing taxes to achieve the greatest marginal utility at each moment.

Compare diminishing marginal utility and utility per dollar to allocate a $20 budget between pizza and beer. See how the best bang for the buck guides your choices.

Firms aim to maximize profits to generate capital, even when pursuing greener missions or other initiatives.

Explore perfect competition, where many small firms sell the same product and no single firm dominates the market; compare accounting profit with economic profit by considering opportunity costs.

Define fixed and variable costs and illustrate how total cost equals fixed plus variable. Show how producing more units spreads fixed costs, lowering the average cost per unit.

Compare how marginal revenue and marginal cost interact when a firm charges a set price; the revenue line rises with output while costs increase, and the intersection signals optimal production.

Firms continue to produce at a loss to cover fixed costs, like leases, by generating revenue from units that also pay variable costs until reaching equilibrium and profit.

Explain why economists favor free markets and competition, which naturally reach an equilibrium of supply and demand and maximize efficiency, given same information, property rights, and many buyers and sellers.

Setting a price ceiling caps how much can be charged, lowers production from the equilibrium, and creates dead weight loss as scarcity and lineups emerge, slowing the free market.

Explain perfect competition: many buyers and sellers, no barriers to entry, price determined by the industry's supply and demand, with zero economic profit at equilibrium.

Examine how a single firm in a monopoly controls output and prices to maximize profit, creating pricing and output decisions that generate significant market inefficiencies that price out many buyers.

explains that monopolies can be beneficial when utilities face high fixed costs and are regulated, and when trash collection and patents create controlled incentives for investment.

Regulate monopolies by setting price caps or subsidizing them to reduce costs and boost output. Preview oligopolies and invite examples.

Show how oligopolies form when a few firms dominate markets, as Coca-Cola and Pepsi illustrate. Explain how collusion, competition, price strategies, brand loyalty, and self-regulation shape price dynamics.

Explore the prisoner's dilemma to reveal how incentives to cheat shape outcomes in markets and illustrate payoffs and cartel dynamics where price cutting erodes cooperative agreements.

Regulating oligopolies through antitrust actions, the government breaks up firms like Standard Oil to restore competition, with industries such as oil, telephone, and railroads illustrating the shift to competitive markets.

Explore monopolistic competition, a hybrid of monopoly and competition, illustrated by gas stations that differentiate through mini marts and services while facing price competition from nearby rivals.