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Economics
IB DP Category 1
Barcelona, Spain, 14 - 16 November 2025
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Economics
IB DP Category 2
Online (IB Approved), 27 - 29 March 2026
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Subscriber comments
Mark
Absolute and comparative advantage (HL only)
Ali and Leona, I agree I have made the change now.
Leona
Absolute and comparative advantage (HL only)
agree， answer 4 is wrong
Alex
Paper 2 question on markets, PED, YED, unemployment and sustainability
Hi Satish, Thank you very much for your point. Really helpful to me. I've made the change to the PDF. Kindest, alex
Satish
Paper 2 question on markets, PED, YED, unemployment and sustainability
Hi Alex +13.85% / -16.67% = -0.83 in quick view answer on page +19.64% / -14.29% = -1.37 (pdf is wrong)
Mark
Monetary policy
I think I agree Jane, because they would still have the original £10b held back in cash so the formulae, as you say would be 1/0.10. I have changed the answer sheet, thank you for letting me know.
Jane
Monetary policy
Hi Mark, I get different answers with the Activity #6 on the money multiplier. As I understand it, the formula is 1/minimum reserve requirement. So if the minimum reserve requirement is 10% (question b), then the total rise in money supply created...
Andrew
Unit 3.7(1) Market based supply-side policies
Hi, we are experiencing the same problem as reported by Eddy with Revision Guide 3.7(1) I'm unable to grant access to students as it is currently set to 'Teacher only page'
Alex
Unit 1.1: Introduction to Economics
Hi Vincenzo, Thanks for your point. Yes the diagram in the answer to the question can be used. Kindest, Alex
Vincenzo
Unit 1.1: Introduction to Economics
Hello sir! Is the PPC diagram here the one students should refer to for this Paper 1 question?
Mark
Paper 2 question on trade, tariffs and quotas
Sophie, which questions do you have in mind, all I can see from b is 35.29 which is correct?
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