DP Economics · HL / SL · 4. The Global Economy

4.2 Types of Trade Protection

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  1. Question 1

    A government imposes a fixed charge of $3 per kilogram on imported coffee, regardless of the coffee's market value. Which type of trade protection does this represent?
    No clue? Show me the answer
    Correct answerCorrect!Incorrect
    BA specific tariff, because the charge is a fixed monetary amount per physical unit

    Step-by-step walkthrough

    Choose a solution method

    Method #1Direct Classification

    Step 1: Identify the key feature of the policy

    The question states the charge is fixed at $3 per kilogram, regardless of what the coffee is actually worth on the market. This 'fixed amount per physical unit' phrasing is the defining feature of one specific tariff type.

    Step 2: Apply the definitions of tariff types

    A specific tariff is a flat monetary charge applied to each unit of a good (e.g. per kilogram, per litre, per car), irrespective of the good's price. An ad valorem tariff, by contrast, is expressed as a percentage of the imported good's value, so the absolute tax rises and falls with the price.

    Step 3: Classify the policy correctly

    Because the charge is **3perkg∗∗anddoes∗∗not∗∗varywiththevalueofthecoffee,thisisaspecifictariff.Ifthecoffeewereworth10/kg or 50/kg,thesame3 charge would apply — confirming it is not percentage-based.

    Step 4: Select the correct answer

    The correct answer is 'A specific tariff, because the charge is a fixed monetary amount per physical unit.' The other options describe a percentage-based tariff, a bilateral export agreement, or a quantity restriction — none of which match the policy described.

    Method #2Process of Elimination

    Step 1: Identify what the question is testing

    The question asks you to classify a trade protection measure — a $3-per-kg fixed charge on coffee imports — using the correct terminology from tariff theory.

    Step 2: Eliminate 'an ad valorem tariff'

    'An ad valorem tariff, because the charge is calculated on each unit imported' is incorrect. Ad valorem tariffs are percentage-based (e.g. 15% of value). A fixed dollar charge per kilogram is not a percentage and does not scale with the good's price.

    Step 3: Eliminate 'a voluntary export restraint'

    'A voluntary export restraint, because the fee is agreed with the exporting country' is incorrect. A VER is a bilateral agreement in which the exporting country limits how much it ships — it is not a per-unit fee charged at the border by the importing country.

    Step 4: Eliminate 'an import quota'

    'An import quota, because it limits the quantity of coffee that can enter the country' is incorrect. A quota sets a hard numerical ceiling on import volume. A $3/kg charge does not cap the quantity — importers can still bring in any amount as long as they pay the fixed tax per unit.

    Step 5: Select the correct answer

    The remaining option — 'A specific tariff, because the charge is a fixed monetary amount per physical unit' — correctly identifies both the instrument (tariff) and the method of calculation (fixed sum per unit). This is the correct answer.

  2. Question 2

    A country imposes a 20% ad valorem tariff on imported laptops. Before the tariff, a laptop is priced at $800. What is the tariff-inclusive price a domestic consumer now pays?
    No clue? Show me the answer
    Correct answerCorrect!Incorrect
    B$960

    Step-by-step walkthrough

    Choose a solution method

    Method #1Direct Calculation

    Step 1: Identify the given values

    The pre-tariff import price is **800∗∗,andtheadvaloremtariffrateis∗∗20t = 0.20).Thetariff−inclusivepriceisfoundusingtheformulaP_{consumer} = P_{import}(1 + t)$.

    Step 2: Calculate the tariff amount

    Tariff=t×Pimport​=0.20×800=$160 The government collects $160 on each laptop imported.

    Step 3: Calculate the tariff-inclusive price

    Pconsumer​=Pimport​+Tariff=800+160=$960 This is the price domestic consumers must pay once the ad valorem tariff is applied.

    Step 4: Select the correct answer

    The correct answer is **960∗∗.Thelaptopnowcosts160 more than the world price of $800, reflecting the 20% ad valorem tariff applied to its full value.

    Method #2Process of Elimination

    Step 1: Identify what the question requires

    The question asks for the tariff-inclusive price of an 800laptopwitha20800 and add it to the original price.

    Step 2: Eliminate $820

    **820∗∗impliesatariffofonly20, which would be just 2.5% of $800 — far below the stated 20% rate. This option involves a calculation error and is incorrect.

    Step 3: Eliminate $1,000

    **1,000∗∗impliesatariffof200, which would be 25% of $800, not 20%. This overstates the tariff rate and is incorrect.

    Step 4: Eliminate $880

    **880∗∗impliesatariffof80, which is 10% of $800, not 20%. This correctly applies a percentage approach but uses the wrong rate, so it is incorrect.

    Step 5: Select the correct answer

    **960∗∗iscorrect:0.20 \times 800 = $160intariff,and800 + 160 = $960.Thisisthetariff−inclusiveprice,consistentwiththeadvaloremformulaP_{import}(1+t) = 800(1.20) = $960$.

  3. Question 3

    A government imposes a specific tariff of $4 per unit on imported textiles, and after the tariff takes effect, 200,000 units are still imported each year. What is the annual tariff revenue collected by the government?
    No clue? Show me the answer
    Correct answerCorrect!Incorrect
    B$800,000

    Step-by-step walkthrough

    Choose a solution method

    Method #1Direct Calculation

    Step 1: Identify the tariff rate and post-tariff import quantity

    The specific tariff is $4 per unit, and the quantity of imports after the tariff is imposed is 200,000 units per year. Tariff revenue is calculated on the actual quantity imported following the price change, not the original quantity.

    Step 2: Apply the tariff revenue formula

    Tariff revenue=t×Qimports​=4×200,000=$800,000 The government earns 4foreveryunitthatstillcrossestheborder,totalling800,000 annually.

    Step 3: Select the correct answer

    The correct answer is **800,000∗∗.Thisistheproductoftheper−unittariff(4) and the post-tariff import volume (200,000 units). Note that if the tariff were set so high that imports fell to zero, revenue would also be zero — so revenue always depends on how many units still enter after the price increase.

    Method #2Process of Elimination

    Step 1: Identify the calculation required

    The question provides a **specific tariff of 4perunit∗∗and∗∗200,000unitsimportedpost−tariff∗∗.Tariffrevenue=tariffperunit×post−tariffimportquantity.Weneedtocheckwhichoptionmatches4 × 200,000.

    Step 2: Eliminate $400,000

    **400,000∗∗wouldimplyeithera2 tariff on 200,000 units or a $4 tariff on 100,000 units — neither matches the figures given. This likely results from halving the tariff rate by mistake.

    Step 3: Eliminate $200,000

    **200,000∗∗wouldrequirea1 tariff per unit on 200,000 units, or some other combination that does not match the stated $4 per unit. This is too low by a factor of four.

    Step 4: Eliminate $1,600,000

    **1,600,000∗∗implies8 per unit on 200,000 units, or $4 per unit on 400,000 units — both inconsistent with the question. This result likely comes from doubling the tariff rate or the quantity.

    Step 5: Select the correct answer

    **800,000∗∗iscorrect:4 \times 200{,}000 = $800{,}000$. This uses the tariff revenue formula correctly with the post-tariff import quantity.

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← Previous topic4.1 Benefits of International TradeNext topic →4.3 Arguments For and Against Trade Protection
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