Welcome to the World of Economics!

In this chapter, we are going to explore how economists look at the world. Think of it like putting on a pair of glasses: sometimes economists look at "what is actually happening" (facts), and other times they look at "what should be happening" (opinions). Understanding the difference between these two is the first step to thinking like a pro economist!

Don't worry if these terms sound a bit fancy at first. By the end of these notes, you’ll be able to spot the difference in a news headline in seconds.

1. Positive Economic Statements

Positive economic statements are objective. This means they are based on facts and can be tested, proven, or rejected by looking at available evidence.

Think of a positive statement like a scientist in a lab. They make a statement, and then they look at the data to see if they are right. It doesn’t matter if the statement is actually true or false; what matters is that we can test it.

Key Characteristics:

  • They describe "what is."
  • They are objective (not based on personal feelings).
  • They can be tested against real-world data.

Real-World Examples:

  • "If the government increases the tax on cigarettes, the number of smokers will decrease." (We can look at the data after the tax hike to see if this happened).
  • "The current unemployment rate in the UK is 4%." (We can check official statistics to verify this).
  • "The moon is made of green cheese." (Wait! Even though this is obviously false, it is still a positive statement because we can go to the moon, test the rocks, and prove it wrong).

Quick Tip: If a statement contains "will," "is," or "does," it is often a positive statement.

Key Takeaway:

Positive statements are about facts and evidence. They don't have to be "good" or "correct," but they must be "testable."

2. Normative Economic Statements

Normative economic statements are subjective. These are based on value judgements—which is just a fancy way of saying "opinions" or "beliefs."

These statements cannot be proven or disproven by looking at data because they are about what people feel is fair, right, or better.

Key Characteristics:

  • They describe "what ought to be" or "what should happen."
  • They are subjective (based on personal or political views).
  • They cannot be tested or proven with data.

Real-World Examples:

  • "The government should increase the minimum wage to help the poor." (This is an opinion about fairness).
  • "It is unfair that some people earn millions while others are homeless." (This is a value-based view on equality).
  • "The best way to fix the economy is to cut taxes." (The word "best" makes this a matter of opinion).

Did you know? You can often spot a normative statement by looking for "trigger words" like: should, ought to, better, worse, fair, or unfair.

Key Takeaway:

Normative statements are about values and opinions. They tell us what someone thinks should happen in the world.

3. Value Judgements and Decision Making

In the real world, economics isn't just about cold, hard facts. Value judgements play a massive role in how economic decisions and policies are made.

While economists use positive statements to understand the consequences of an action, the final decision usually comes down to a normative view.

How it works in practice:

1. The Positive Part: An economist tells the government: "If you raise income tax, you will collect \(£5\) billion more for the NHS, but some high-earners might move abroad." (This is testable data).

2. The Normative Part: The government must decide: "Is it fair to tax the rich more to fund healthcare?" (This is a value judgement).

Why do economists disagree?

You might notice that economists on the news are always arguing! This is rarely because they disagree on the facts (positive economics). Usually, they disagree because they have different values (normative economics). One might value economic growth above all else, while another might value equality or environmental protection.

Key Takeaway:

Data (positive economics) gives us the information, but value judgements (normative economics) tell us what to do with that information.

Summary and Review

Quick Comparison Table:

  • Positive: Objective, based on facts, describes "what is," can be proven/disproven.
  • Normative: Subjective, based on value judgements, describes "what should be," cannot be proven/disproven.

Common Mistakes to Avoid:

  • Mistake: Thinking "Positive" means "Good."
    Correction: A positive statement can describe something terrible (e.g., "Poverty is increasing"). It is "positive" because it is a factual claim we can measure.
  • Mistake: Thinking "Normative" means "False."
    Correction: A normative statement isn't a lie; it’s an opinion. Many people may agree with it, but it still can't be scientifically proven.

Memory Aid: The "P" and "N" Trick

Positive = Proof (You can look for proof in data).

Normative = Non-testable (It's just an opinion!).

Great job! You've just mastered one of the fundamental building blocks of economic theory. Keep these "fact vs. opinion" glasses on as you move through the rest of the course!