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Managerial Economics · International trade & tariffs

BSMS3206 · 16 questions · 18 marks · 2 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

BSMS3206 · Managerial Economics

International trade & tariffs

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

End Term · 31 Aug 2025 (FN)End Term

Read the passage below, then answer Q1–Q8
Based on the above data, answer the given subquestions.
Q1NAT1 Mark·Write the number
Asked 2 times Key ↓
Your answer:
Q2NAT1 Mark·Write the number
Asked 2 times Key ↓
Consumer surplus in this case will be CS = _____________
Your answer:
Q3NAT1 Mark·Write the number
Asked 2 times Key ↓
Producer surplus in this case will be PS = ______________
Your answer:
Q4NAT1 Mark·Write the number
Asked 2 times Key ↓
In case of import without tariff, how many total units of ball pens will be imported _____________
Your answer:
Q5NAT1 Mark·Write the number
Asked 2 times Key ↓
In case of import without tariff, how many units of ball pens are being supplied by domestic firms ___________
Your answer:
Q6NAT1 Mark·Write the number
Asked 2 times Key ↓
With the tariff, how many units would be imported? _____________
Your answer:
Q7NAT1.5 Marks·Write the number
Asked 2 times Key ↓
How much would domestic producer surplus change compared to the case with imports without tariffs if the government introduces a ₹10 import duty per ball pen? ___________
Your answer:
Q8NAT1.5 Marks·Write the number
Asked 2 times Key ↓
How much revenue would the domestic government collect from the imports of ball pens due to this import duty of ₹10? _________________
Your answer:

End Term · 31 Aug 2025 (AN)End Term

Read the passage below, then answer Q9–Q16
Based on the above data, answer the given subquestions.
Q9NAT1 Mark·Write the number
Asked 2 times Key ↓
The equilibrium price of ball pens in the domestic market without any imports will be P*= _______
Your answer:
Q10NAT1 Mark·Write the number
Asked 2 times Key ↓
Consumer surplus in this case will be CS = ____________
Your answer:
Q11NAT1 Mark·Write the number
Asked 2 times Key ↓
Producer surplus in this case will be PS = ____________
Your answer:
Q12NAT1 Mark·Write the number
Asked 2 times Key ↓
In case of import without tariff, how many total units of ball pens will be imported _______________
Your answer:
Q13NAT1 Mark·Write the number
Asked 2 times Key ↓
In case of import without tariff, how many units of ball pens are being supplied by domestic firms ____________
Your answer:
Q14NAT1 Mark·Write the number
Asked 2 times Key ↓
With the tariff, how many units would be imported? ____________
Your answer:
Q15NAT1.5 Marks·Write the number
Asked 2 times Key ↓
How much would domestic producer surplus change compared to the case with imports without tariffs if the government introduces a ₹10 import duty per ball pen?____________
Your answer:
Q16NAT1.5 Marks·Write the number
Asked 2 times Key ↓
How much revenue would the domestic government collect from the imports of ball pens due to this import duty of ₹10? ____________
Your answer:

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q150

Q21250 or 1250000

Q31250 or 1250000

Q460 or 60000

Q520 or 20000

Q640 or 40000

Q7250000 or 250

Q8400 or 400000

Q950

Q101250 or 1250000

Q111250 or 1250000

Q1260 or 60000

Q1320 or 20000

Q1440 or 40000

Q15250000 or 250

Q16400 or 400000

Detailed Answer Notes & Working

Q2Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q3Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q4Answer: 60 or 60000: Official answer key accepts 60 or 60000.
Q5Answer: 20 or 20000: Official answer key accepts 20 or 20000.
Q6Answer: 40 or 40000: Official answer key accepts 40 or 40000.
Q7Answer: 250000 or 250: Official answer key accepts 250000 or 250.
Q8Answer: 400 or 400000: Official answer key accepts 400 or 400000.
Q10Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q11Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q12Answer: 60 or 60000: Official answer key accepts 60 or 60000.
Q13Answer: 20 or 20000: Official answer key accepts 20 or 20000.
Q14Answer: 40 or 40000: Official answer key accepts 40 or 40000.
Q15Answer: 250000 or 250: Official answer key accepts 250000 or 250.
Q16Answer: 400 or 400000: Official answer key accepts 400 or 400000.

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