Summary
Economic methodology involves understanding economics as a social science, the development of models based on assumptions, and the use of ceteris paribus. It also includes distinguishing between positive and normative economics and recognizing the importance of time periods.
- Economics as a social science — Economics studies human behavior and choices using scientific methods. Example: Economics uses theories to predict how individuals and groups behave in markets.
- Positive statement — A statement that can be tested and verified based on facts. Example: "The inflation rate in the country has increased by 2%."
- Normative statement — A statement based on opinions or values, often using words like 'should'. Example: "Companies ought to prioritize environmental sustainability over profits."
- Ceteris paribus — An assumption that all other factors remain constant when analyzing a specific variable. Example: Analyzing the effect of price on demand while keeping other factors constant.
- The margin — Analyzing small changes in variables to predict impacts. Example: Evaluating the effect of a small change in production on the economy.
- Short run — A time period where only some factors of production can change. Example: Adjusting labor while keeping capital constant.
- Long run — A time period where all factors of production can change. Example: Changing both labor and capital inputs.
- Very long run — A time period where technical progress can change supply conditions. Example: New inventions altering industry supply.
Exam Tips
Key Definitions to Remember
- Economics as a social science
- Positive and normative statements
- Ceteris paribus
- The margin
- Short run, long run, very long run
Common Confusions
- Confusing positive statements with normative statements
- Misunderstanding the concept of ceteris paribus
Typical Exam Questions
- Consider whether, without the concept of ceteris paribus, it would be possible to regard economics as a social science? Ceteris paribus allows for isolated analysis, crucial for scientific study in economics.
- Explain the significance of time periods in economics? Different time periods affect how factors of production can be adjusted.
- Discuss to what extent economics should be described as a ‘social science’? Economics uses scientific methods to study human behavior, fitting the social science category.
What Examiners Usually Test
- Understanding of key economic concepts and definitions
- Ability to distinguish between positive and normative statements
- Application of ceteris paribus in economic analysis