2026-W19
Exchange-rate and short‑run AD questions need focused revision
This week’s quizzes show strong grasp of basic fiscal effects on AD but persistent errors on exchange‑rate direction and inflation‑differential reasoning.
Published May 17, 2026
Total quiz attempts
752
Active learners
114
Average score
81.46%
Question accuracy (aggregate)
78.98%
Average time per question
70 s
1. Weekly Overview
Exchange‑rate direction and real return calculations are the clearest weak points.
Aggregate quiz activity (114 learners, 752 attempts) shows solid performance on fiscal effects and LRAS concepts, while questions on inflation differentials, the foreign exchange price of currencies, and some real‑return calculations had disproportionately low accuracy and long response times.
Student takeaway: Prioritise practice on exchange‑rate direction (PPP/relative inflation), depreciation/appreciation effects on AD, and a few basic real‑return calculations this week.
2. Key Patterns
Main Insights
Exchange‑rate direction after differential inflation is a weak area
The question about faster US inflation vs trading partners had the lowest accuracy (37.5%) — students struggled to translate relative inflation into expected currency price movement.
Advice: Review the intuition behind purchasing power parity and practise a few short examples that link higher domestic inflation to currency depreciation in nominal terms.
Confusion on appreciation/depreciation effects for trade and AD
Multiple Macroeconomics items (unit 3.2) about currency appreciation/depreciation and aggregate demand returned near‑50% accuracy and, in one case, very long response times — this signals hesitation on the channels (imports, exports, net exports → AD).
Advice: Draw a simple flow diagram: exchange‑rate change → import/export price changes → net exports → AD; then answer 5 mixed MCQs to build speed and confidence.
Clear strength on fiscal tax effects and LRAS/institutions
Questions on the short‑run AD effect of higher income taxes and on LRAS shifts from institutional weakening showed near‑perfect accuracy, indicating reliable conceptual understanding in these areas.
Advice: Consolidate this strength by practising multi‑step problems that combine fiscal policy with external shocks so you can apply the concept in mixed contexts.
3. Revision Plan
Priority Areas
Inflation differentials and PPP · 4.5 (Global Economy)
Lowest accuracy on exchange‑rate direction questions (37.5% correct).
Action: Work one guided note on PPP intuition and complete 6 short MCQs that ask 'if X inflation > Y inflation, what happens to currency price?'
Currency appreciation/depreciation and aggregate demand channels · 3.2 (Macroeconomics)
Multiple items ~50% accuracy and long response times signal hesitation on net‑exports → AD linkage.
Action: Draw net‑exports flow diagrams, practice 5 diagram + explanation answers, then 5 timed MCQs.
Nominal wages, SRAS and unemployment · 3.2 (Macroeconomics)
Moderate wrong‑rates on wage‑bargaining questions suggest gaps in SRAS and cost‑push reasoning.
Action: Review SRAS shift causes with two worked examples and answer 4 targeted MCQs.
Real return / Fisher‑type calculations · 3.3 (Macroeconomics)
Calculation items showed low accuracy and long solve times for some learners.
Action: Practice 5 quick nominal vs real return calculations (use approximation and exact methods) to build speed.
4. Question Evidence
Featured Questions
Most Wrong Questions
| Question | Topic | Unit | Attempts | Correct | Wrong | Avg Time |
|---|---|---|---|---|---|---|
| US inflation rises faster than in its main trading partners. What is the likely impact on the price of the dollar in the foreign exchange market? | Global Economy | 4.5 | 48 | 37.5% | 0.0% | 55.8 s |
| What happens if the domestic currency appreciates significantly, making imports cheaper and exports more expensive to foreigners? | Macroeconomics | 3.2 | 70 | 48.6% | 0.0% | 21.0 min |
| What happens to aggregate demand if the domestic currency depreciates sharply against major trading partners’ currencies? | Macroeconomics | 3.2 | 52 | 50.0% | 0.0% | 33.5 s |
Most Correct Questions
| Question | Topic | Unit | Attempts | Correct | Wrong | Avg Time |
|---|---|---|---|---|---|---|
| What happens to aggregate demand if the government raises income taxes on households, reducing their disposable income? | Macroeconomics | 3.2 | 57 | 100.0% | 0.0% | 1.8 min |
| How is the LRAS curve affected if institutions weaken over time, for example through rising corruption and weaker enforcement of property rights? | Macroeconomics | 3.2 | 53 | 100.0% | 0.0% | 28.1 s |
Most Time Spent Questions
| Question | Topic | Unit | Attempts | Correct | Wrong | Avg Time |
|---|---|---|---|---|---|---|
| Which of the following best defines net income earned abroad? | Macroeconomics | 3.1 | 5 | 80.0% | 0.0% | 174.1 min |
| What is a key criticism of the free market regarding equity? | Microeconomics | 2.12 | 10 | 80.0% | 0.0% | 127.3 min |
| What happens if the domestic currency appreciates significantly, making imports cheaper and exports more expensive to foreigners? | Macroeconomics | 3.2 | 70 | 48.6% | 0.0% | 21.0 min |
5. Conclusion
Next steps
Focus first on a short set of practice items linking relative inflation to exchange‑rate moves, then practise 10 mixed AD/FX MCQs and 5 quick real‑return calculations — this sequence targets the week’s weakest patterns while reinforcing strong fiscal intuition.
Note: This weekly report is automatically generated and may contain mistakes. Always double-check key points before using them for revision.
This report summarises anonymized aggregate quiz activity from the week; it does not contain or imply any individual student data.