Economize
To use things carefully so you don’t waste them.
Economics
The study of how people use limited resources to satisfy unlimited wants.
Economy
The system of how a country produces and uses goods and services.
Effective
Achieving the goal. (It works.)
Efficient
Using the least waste to achieve the goal.
Opportunity Cost
The value of the next best thing you give up when you make a choice.
Analytical (Positive) Economics
Facts about the economy.
No opinions. Just what is.
Normative (Policy) Economics
Opinions about what should happen in the economy.
Scientific Method
A step-by-step way to test ideas using evidence and data.
Fallacy
A mistake in reasoning.
Fallacy of Composition
Thinking that what is true for one person must be true for everyone.
Post Hoc Fallacy (Cause-and-Effect Fallacy)
Thinking that just because one thing happened after another, it caused it.
Fallacy of Single Causation
Thinking one thing caused something, when actually many factors did.
Production Possibilities Curve
A graph showing the maximum amount of two goods an economy can produce.
Trade-off
Giving up one thing to get something else
Consumer Goods
Goods made for people to use (like food, clothes, phones).
Capital Goods
Goods used to make other goods (like machines, factories).
Relative Cost
The opportunity cost of producing one good instead of another.
Law of Increasing Relative Cost
As you produce more of one good, the opportunity cost increases.
Output
The goods and services produced.
Law of Diminishing Returns
Adding more of one input (like workers) will eventually produce smaller increases in output.
Input
Resources used to produce something (labor, land, capital).
Law of Increasing Returns to Scale
When increasing all inputs leads to a more-than-proportional increase in output.
Productive Resources
Things used to make goods and services.