DP Economics · HL / SL · 1. Introduction to Economics

1.2 How do economists approach the world?

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  1. Question 1

    A thriving Nordic country produces more goods and services per person than almost any other nation on Earth, yet its citizens still face trade-offs when allocating government funds between healthcare, education, and defence. This situation best illustrates which of the following economic concepts?
    No clue? Show me the answer
    Correct answerCorrect!Incorrect
    AScarcity, because wants exceed available resources regardless of how wealthy an economy is

    Step-by-step walkthrough

    Choose a solution method

    Method #1Direct Classification

    Step 1: Identify the core condition described

    The question describes a wealthy country that still cannot satisfy all its desired uses of resources simultaneously. The key detail is that trade-offs exist despite high income and productivity.

    Step 2: Apply the definition of scarcity

    Scarcity arises when unlimited wants exceed limited resources, regardless of the absolute level of wealth. Even a rich nation has finite land, labour, capital, and time relative to all the things its citizens and government desire.

    Step 3: Distinguish scarcity from related concepts

    Poverty refers to a low absolute level of income or resources relative to others — the Nordic country is explicitly described as thriving, so poverty does not apply. A shortage is a temporary market imbalance, not a structural condition. Inefficiency is about waste in production, not about the fundamental mismatch between wants and resources.

    Step 4: Select the correct answer

    The scenario perfectly illustrates scarcity: wants (healthcare, education, defence spending) exceed available resources (the fixed budget), forcing trade-offs. This is true for every economy, rich or poor.

    Method #2Process of Elimination

    Step 1: Identify what the question is asking

    The question asks which economic concept explains why even a wealthy nation must make trade-offs when allocating its government budget across competing priorities.

    Step 2: Eliminate 'Poverty'

    'Poverty, because even rich nations lack sufficient resources to meet basic needs' is incorrect — the country is explicitly described as thriving, with high output per person. Poverty describes low absolute resources, not the universal condition of wants exceeding resources.

    Step 3: Eliminate 'A shortage'

    'A shortage, because the government cannot temporarily supply enough public services' is incorrect — a shortage is a temporary, price-related market imbalance (quantity demanded exceeds quantity supplied at the current price), not the permanent structural condition described here.

    Step 4: Eliminate 'Inefficiency'

    'Inefficiency, because a well-run economy should be able to fund all public priorities simultaneously' is incorrect — no level of efficiency can eliminate scarcity, because wants are unlimited and resources are always finite, making trade-offs unavoidable regardless of how well resources are used.

    Step 5: Select the correct answer

    The remaining option — scarcity — is correct. It is the universal condition that forces trade-offs in every economy, whether rich or poor, by ensuring that wants always exceed available resources.

  2. Question 2

    A government economic adviser reviews two statements made in a policy briefing. Statement 1: 'Raising the income tax rate by 5 percentage points will reduce consumer spending by approximately 3%.' Statement 2: 'The income tax rate should be raised to 5 percentage points to reduce inequality.' Which of the following correctly classifies these two statements?
    No clue? Show me the answer
    Correct answerCorrect!Incorrect
    AStatement 1 is positive; Statement 2 is normative

    Step-by-step walkthrough

    Choose a solution method

    Method #1Direct Classification

    Step 1: Identify the nature of each statement

    Statement 1 makes a predictive claim: 'a 5 pp tax rise will reduce consumer spending by 3%.' This is a factual prediction about cause and effect. Statement 2 makes a recommendation: the tax rate 'should be raised' — expressing what the speaker believes ought to happen based on a value judgement about inequality.

    Step 2: Apply the positive/normative distinction

    A positive statement describes what is, was, or will be — it is objective and testable against data. A normative statement prescribes what ought to be — it is based on values and cannot be proven true or false empirically. Statement 1 can in principle be tested by examining spending data after a tax change; Statement 2 cannot be settled by data alone because it depends on how much weight one places on reducing inequality versus other goals.

    Step 3: Classify each statement correctly

    Statement 1 = positive (objective, testable prediction). Statement 2 = normative (value judgement signalled by the word 'should' and the ethical goal of reducing inequality).

    Step 4: Select the correct answer

    The correct classification is: Statement 1 is positive; Statement 2 is normative. The fact that both involve income tax does not make them the same type — the distinction depends on whether the claim is testable (positive) or value-based (normative).

    Method #2Process of Elimination

    Step 1: Identify what the question is testing

    The question tests the ability to distinguish positive statements (testable factual claims) from normative statements (value-based prescriptions), using two specific statements about income tax policy.

    Step 2: Eliminate 'Statement 1 normative, Statement 2 positive'

    'Statement 1 is normative; Statement 2 is positive' reverses the correct classification. Statement 1 predicts a factual outcome and is testable with spending data — this is positive economics. Statement 2 uses the word 'should' and rests on a value judgement about inequality — this is normative.

    Step 3: Eliminate 'both are positive'

    'Both statements are positive because both involve income tax' is incorrect — the subject matter (tax) does not determine the type. Statement 2 contains a value-based prescription ('should be raised to reduce inequality'), which makes it normative regardless of its topic.

    Step 4: Eliminate 'both are normative'

    'Both statements are normative because both are about government policy' is incorrect — government policy statements can be either positive or normative. Statement 1 is a testable empirical prediction and is therefore positive, not normative.

    Step 5: Select the correct answer

    The correct answer is: Statement 1 is positive; Statement 2 is normative. The key signals are testability (Statement 1 can be checked against data) and the word 'should' combined with a value judgement (Statement 2 cannot be settled by evidence alone).

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