ECON202: Intermediate Macroeconomics and Applications Exam Prep (South Africa Focus: UCT, Wits, Stellenbosch, UKZN, and TVET Pathways)

Intermediate Macroeconomics (commonly coded ECON202 in South African economics curricula) sits at the intersection of theory and applied macroeconomic policy. This exam-prep guide builds the core models—aggregate demand/aggregate supply (AD-AS), IS–LM, uncovered interest parity (UIP), and open-economy macro frameworks—and then shows how they map onto real South African policy debates. It also emphasizes what typical examiners test: clean derivations, coherent causal chains, correct sign conventions, and consistent interpretation of data and graphs.

The guide is structured into five substantial sections, each clustering around a South African institution’s teaching and assessment style. Each section is designed to feel like a “ready-to-use pack”: key concepts, typical question patterns, model diagrams, solved practice logic, and application to local data contexts—without losing the general macro competence that many exams assume.

UKZN: ECON202 Exam Notes (Intermediate Macroeconomics and Applications — Models, Policy, and Data Interpretation)

1) What “Intermediate Macroeconomics” usually means in ECON202

At intermediate level, an ECON202 exam typically expects you to go beyond stating that “inflation happens” and instead answer: what drives inflation in the model, how policy affects output, employment, exchange rates, and the balance of payments, and what happens when assumptions break. In practice, UKZN-style assessment often rewards answers that show:

• Mechanism-first reasoning (policy affects variables through transmission channels).
• Diagram literacy (AD–AS and IS–LM style graphs must match the verbal story).
• Causal clarity under constraints (e.g., monetary policy credibility, fiscal space, exchange rate regime).

You should be ready for combinations of:

• A closed-economy block (IS–LM, fiscal multipliers, monetary neutrality claims).
• An open-economy extension (exchange rates, interest differentials, capital flows).
• Short data questions (interpret CPI trends, unemployment, output gaps, or the behaviour of the current account).

A strong approach is to treat each question like a chain:

1. Shock/policy (e.g., higher government spending, higher policy rate, depreciation).
2. Transmission channel (demand, interest rates, exchange rate, expectations).
3. Equilibrium response (output, interest rate, inflation).
4. Second-round effects (crowding out, wealth effects, net exports response).
5. Assumptions check (short run vs long run; sticky prices; money demand stability).

2) The AD–AS backbone: inflation and output in the short run and long run

Even if your syllabus leans more toward IS–LM, intermediate macro exams often still use AD–AS to interpret inflation/output interactions. A minimal but correct story:

• Short-run aggregate supply (SRAS): positively sloped due to sticky wages/prices or predetermined input costs.
• Long-run aggregate supply (LRAS): vertical at potential output (Y^*).
• Aggregate demand (AD): downward sloping due to the real balances effect, interest rate effect, and wealth effect (depending on how your lecturer framed it).

Key exam moves

• If SRAS shifts left (cost-push shock like fuel price rise), output falls and price level rises → stagflation.
• If AD shifts right (expansionary fiscal policy), output rises in short run; price level increases; in the long run, output returns to (Y^*).

A common UKZN-style question pattern

You’ll see something like:

• “Government increases spending. Use AD–AS to show short-run and long-run effects on output and the price level. Include explanation for why output returns to potential.”

Your answer structure:

1. Show AD right shift.
2. SRAS intersects at higher (Y) and higher price level.
3. Higher price level → real money balances fall → interest rates rise (or “tight monetary reaction” if specified).
4. Wages/prices adjust → SRAS shifts left until output returns to (Y^*).

3) IS–LM in intermediate format: fiscal vs monetary policy under liquidity preference

For many exams, the IS–LM system is the main quantitative model. You must know not only the qualitative direction of effects, but also how the logic of interest rates links to output.

• IS curve: goods market equilibrium. It links output (Y) to the interest rate (i).
• LM curve: money market equilibrium. It links (Y) to (i).

Fiscal policy (increase in (G))

• IS shifts right.
• Output rises.
• Interest rate rises.
• Potential crowding out of private spending occurs through higher (i).

If the exam asks for “with and without crowding out,” you interpret:

• Without crowding out: bigger multiplier, larger output rise.
• With crowding out: part of the demand increase is offset by reduced investment.

Monetary policy (increase in money supply (M))

• LM shifts right (more liquidity).
• Interest rates fall.
• Output rises.

A key distinction: under some assumptions, monetary policy can stimulate output in short run but not permanently change real output in the long run (when prices/wages adjust).

4) The “liquidity trap” and expectation sensitivity (how to get marks fast)

Intermediate exams sometimes include “special cases”:

• Liquidity trap: LM becomes flat because interest rates are near zero and additional money doesn’t lower (i) much; so output response is limited.
• Expectations of inflation: can change the real interest rate and shift policy effectiveness.

A high-scoring answer does two things:

1. Clearly state the special-case assumption (e.g., LM flat).
2. Explain why the mechanism breaks (monetary policy cannot reduce interest rates further).

5) Open-economy applications: UIP, exchange rates, and capital flows

If your ECON202 content includes exchange rates and external balances, you must be comfortable with the logic behind uncovered interest parity (UIP):

[
i = i^* + \frac{E^e_{t+1} – E_t}{E_t}
]

Interpretation:

• If domestic interest rate (i) is higher than world rate (i^*), investors expect currency appreciation or, equivalently, the domestic currency depreciates less than otherwise (depending on how expectations are defined).

Exam-ready directional logic

• Higher domestic interest rate tends to attract capital inflows → currency appreciates in the short run (depending on model details).
• Appreciation reduces net exports (exports fall, imports rise).
• Output response can be ambiguous if the currency channel dominates.

6) South African application: linking models to macro realities

South Africa’s macro discourse often centers on:

• Inflation dynamics (including food and fuel pressures),
• Monetary policy credibility and the policy rate,
• Exchange rate volatility and external financing,
• Fiscal constraints and public spending efficiency.

In exam answers, you don’t need to memorize every data point, but you should be able to say things like:

• “A cost-push shock that raises input prices shifts SRAS left, raising inflation and reducing output—consistent with episodes of fuel and food inflation.”
• “Expansionary fiscal policy increases demand, but in a country with strong import content and interest-rate sensitivity, crowding out and exchange-rate effects can reduce the output multiplier.”

7) Mini “exam drills”: write these without hesitation

Practice writing concise, logically complete answers:

1. Shock → graph → interpretation (2 marks each)

   • “When (G) increases, IS shifts right. The equilibrium interest rate rises, which partially crowds out private investment, so output increases less than the initial multiplier would suggest.”

2. Long run correction

   • “In the long run, output returns to (Y^*) because wages/prices adjust; only the price level changes permanently.”

3. Open economy channel

   • “A higher domestic interest rate attracts capital inflows, appreciating the currency and reducing net exports; the overall output effect depends on the relative strength of the interest and trade channels.”

8) Data interpretation checklist (what graders look for)

When the exam includes a short dataset—like CPI inflation trend, unemployment rate changes, or exchange rate movements—your checklist should be:

• Identify what is trend vs shock.
• State whether the question implies short run (sticky prices) or long run (flexible prices).
• Connect the data to the model variable:
  • CPI inflation → price level / inflation expectations
  • Policy rate → interest rate (i)
  • Exchange rate (ZAR per USD, for instance) → (E)
  • Unemployment → output gap and labour market assumptions
• End with a directional conclusion: “policy is expected to reduce inflation but may increase unemployment short run” (if consistent with your model and given assumptions).

Stellenbosch University: ECON202 Exam Notes (Intermediate Macroeconomics and Applications — DSGE-lite Intuition, Tradeoffs, and Policy Evaluation)

1) How Stellenbosch-style ECON202 often tests “tradeoffs”

At intermediate macro level, Stellenbosch-oriented exam problems commonly emphasize policy tradeoffs:

• Output vs inflation,
• Growth vs stability,
• Fiscal expansion vs external balance,
• Monetary tightening vs recession risk.

Even if your course isn’t fully “DSGE,” you should think structurally: models are simplifications of mechanisms, and the exam tests whether you can state what mechanism drives each result.

A high-scoring approach uses a three-part answer:

1. Model statement (which curve shifts / which equilibrium changes).
2. Tradeoff explanation (why one objective improves while another worsens).
3. Policy evaluation (what conditions make the policy more effective).

2) Inflation and policy: nominal vs real channels

Stellenbosch exam tasks frequently ask you to separate:

• Nominal interest rate changes vs
• Real interest rate changes.

If CPI inflation rises, the real cost of holding money and real borrowing conditions can change even when nominal rates move.

Common interpretive logic

• Expansionary fiscal policy increases (Y) in short run → inflation tends to rise → real interest rates may increase/decrease depending on the policy reaction.
• If monetary policy responds by raising nominal interest rates, the real interest rate may rise more, dampening demand.

So a good answer always includes a line like:

• “Because inflation affects real interest rates, monetary tightening may be needed to stabilise inflation even if output initially falls.”

3) Output gap reasoning: potential output (Y^*) and the meaning of “return to trend”

Even when questions are not explicitly about the output gap, examiners want you to interpret output relative to potential.

• If (Y > Y^*) (boom), inflation tends to rise (in many frameworks).
• If (Y < Y^*) (recession), inflation tends to fall or unemployment rises.

You should be comfortable describing:

• short-run dynamics: demand expansion affects (Y),
• medium/long-run correction: price/wage adjustment returns output to (Y^*).

4) Fiscal policy: multipliers, crowding out, and the role of openness

In intermediate macro, fiscal policy is often where marks are gained through careful crowding-out logic.

Closed economy multiplier logic (baseline)

Government spending increase raises demand → output rises by:
[
\Delta Y = \frac{1}{1-c(1-t)+m} \Delta G
]
(Your exact formula depends on whether your version includes taxes (t) and marginal imports (m). In exams, if the lecturer did not give a formula, you should describe the qualitative multiplier.)

Open economy complication

In an open economy, fiscal expansion increases imports, so:

• Net exports fall,
• Output increase is smaller than in a closed economy,
• Exchange-rate movements can amplify or offset effects.

To score well, don’t just say “imports reduce the multiplier.” Instead say:

• “As income rises, imports rise, reducing net exports. Additionally, if interest rates rise, capital inflow may appreciate the currency, further reducing net exports.”

5) Monetary policy: transmission and policy credibility

Monetary policy effectiveness often depends on credibility and expectations. A frequently tested distinction:

• Actual vs expected inflation
  If agents believe inflation will rise, wage contracts and price-setting may incorporate that, shifting SRAS.

A good exam statement:

• “If expectations are anchored, monetary tightening reduces inflation with less persistent output loss; if expectations are unanchored, SRAS shifts can undermine disinflation.”

Even without formal adaptive expectations, graders like to see you mention expectations as a mechanism.

6) Exchange rates and external balance: current account logic

When exams include trade and external balances, you should connect:

• Exchange rate depreciation → exports more competitive (net exports improve) → output increases (short run),
• but higher import prices can raise inflation (cost channel).

In South Africa contexts, this matters because:

• Many consumption and production inputs depend on imports,
• exchange-rate pass-through can contribute to inflation.

So a polished answer should always include both:

1. Demand-switching effect (net exports rise),
2. Cost effect (inflation rises due to import costs),
3. potentially a monetary policy response (higher policy rate to stabilise inflation).

7) Worked mini-scenarios (write them as exam answers)

Scenario A: Increase in policy rate (i)

• LM shifts left (or shifts to higher interest rate equilibrium).
• Output decreases in short run.
• Inflation falls (depending on the model’s link between output and inflation).
• In an open economy, higher (i) may appreciate the currency, reducing net exports and further cooling demand, strengthening disinflation.

Scenario B: Fuel price shock (cost-push)

• SRAS shifts left.
• Output falls, inflation rises.
• Monetary tightening could reduce demand but may worsen output; fiscal adjustment might be constrained.
• Optimal policy involves tradeoff: stabilize inflation without deep recession—often requiring targeted support rather than broad stimulus.

Scenario C: Fiscal expansion (G\uparrow) during recession (Y<Y^*)

• In short run, AD increases → output rises.
• As output rises, inflation pressure appears; central bank may tighten.
• In open economy, appreciation or higher interest rates may reduce net exports.
• Net effect: output rises, but the magnitude depends on openness and the policy reaction function.

8) Exam checklist: what to write in the margin

Before submitting, check that your answer includes:

• Correct direction of curve shifts (IS/LM, AD/SRAS/LRAS).
• Clear causal text: “because… therefore…”.
• Tradeoff statement.
• Short-run vs long-run separation.
• If open-economy is present: mention exchange rate/net exports and inflation pass-through.

University of the Witwatersrand (Wits): ECON202 Exam Notes (Intermediate Macroeconomics and Applications — IS–LM–BP Style Thinking, Money, and External Constraints)

1) The “Wits exam mindset”: precision in mechanisms

Wits economics exams often reward crisp precision:

• correct signs,
• consistent units and definitions,
• and accurate mapping from model to policy story.

A frequent approach in Wits intermediate macro is to present an argument that feels like:

• “Where is equilibrium determined (money vs goods markets vs external balance)?”
• “Which adjustment occurs first (interest rate, exchange rate, output)?”
• “What constraint binds (capital mobility, fiscal space, reserve flows)?”

Even when the formal BP curve (balance of payments) isn’t required, many questions implicitly behave like open-economy BP logic.

2) Money market and goods market: linking (M/P) to real effects

If your course uses money demand (L(i,Y)) and real balances (M/P), you should master:

• Expansion in money supply increases real balances → lowers interest rate (i) at given output.
• Lower interest rate increases investment and demand → raises output.
• If prices are sticky in the short run, output responds more; if prices adjust quickly, effects weaken.

Common exam pitfall

Students sometimes say “money supply increase lowers interest rate and raises output.” That’s correct in the short run. But examiners may then ask: “What happens to inflation?” You must mention that increased AD raises price level over time, reducing real money balances and pushing interest rates back toward the original equilibrium (depending on monetary regime).

3) External constraints: why capital flows can dominate policy

In open-economy macro, external constraints are often central to exam answers. Under high capital mobility:

• Small differences in interest rates can lead to large capital flows,
• exchange rates adjust rapidly,
• domestic monetary independence may be limited.

Even if not explicitly named, your answer should reflect the idea:

• “With high capital mobility, interest parity conditions tightly link domestic interest rates, expected exchange rate changes, and external balance.”

4) Currency depreciation: output vs inflation vs balance of payments

A depreciation can be both stabilizing and inflationary, so the exam might test your ability to hold both effects in your head.

Mechanism in a typical open-economy chain

1. Depreciation makes domestic goods cheaper abroad → exports rise → net exports improve.
2. Depreciation makes imported goods more expensive → import costs rise → inflation rises.
3. Inflation and higher interest rates can then dampen domestic demand.
4. Outcome depends on:
   • marginal propensity to import (openness),
   • pass-through magnitude,
   • monetary authority reaction.

In a high-scoring answer, state:

• “Short-run output can rise via net exports, but inflation pressure may cause tighter monetary policy, potentially offsetting part of the output gain.”

5) Fiscal policy under external balance considerations

If exam questions hint at the balance of payments:

• Fiscal expansion raises income and imports,
• can worsen the current account,
• may increase demand for foreign currency,
• can lead to depreciation pressure.

Depreciation then can feed back into inflation. This creates a chain where fiscal policy has broader consequences than in a closed economy.

A robust exam answer includes:

• first-round effect: (G\uparrow\Rightarrow Y\uparrow\Rightarrow) imports up,
• second-round: exchange rate depreciation/interest rate response,
• third-round: inflation and output consequences.

6) Application to South African macro narratives (without relying on memorized numbers)

Wits-style applied questions often refer to real-world themes:

• “episodes of exchange-rate volatility,”
• “inflation targeting constraints,”
• “fiscal discipline versus growth needs,”
• “unemployment and output gaps.”

In exam writing, you can connect model mechanisms to these themes:

• High import dependence → depreciation quickly affects inflation.
• Inflation credibility issues → monetary tightening may be required at higher rates.
• Fiscal constraints → stimulus may worsen debt expectations, affecting risk premia and interest rates.

Even if the exact numerical risk premium is not provided, the mechanism chain is what matters.

7) Typing discipline: how to structure derivations and graphs

Some Wits exams include questions where you must:

• derive relationships,
• solve simple equilibrium conditions,
• or interpret linear approximations.

Your derivation structure should be:

1. Write the model equations clearly (money market, goods market, interest parity if open economy).
2. Substitute to reduce to one variable (often (Y) or (i)).
3. Solve for equilibrium and interpret comparative statics:
   • if (G\uparrow), then (Y\uparrow),
   • if (M\uparrow), then (i\downarrow) and (Y\uparrow),
   • if expected depreciation rises, then UIP implies (i) adjusts accordingly.

8) Comparative statics practice you should be able to do quickly

Try to be able to answer, on the spot:

• “If money supply increases, what happens to (i) and (Y)?”
  → (i\downarrow), (Y\uparrow) (short run).

• “If the government raises taxes (T) (holding (G) constant)?”
  → disposable income decreases → consumption falls → AD left → output decreases; interest rates could fall too.

• “If foreign interest rate (i^*) increases?”
  → UIP suggests either domestic interest rates must rise or currency must be expected to depreciate less/more depending on model sign conventions. In exam answers, you should explicitly connect the direction to the parity equation you use.

University of Cape Town (UCT): ECON202 Exam Notes (Intermediate Macroeconomics and Applications — Balance of Payments, Exchange Rate Pass-through, and Policy Design)

1) UCT exam themes: policy design under constraints

UCT students are often expected to go beyond “what happens” into “what policy would be appropriate and why.” This means your answers should include:

• A baseline (neutral policy or status quo).
• A problem (inflation surge, recession, external deficit).
• A policy objective (stabilize inflation, restore growth, maintain external balance).
• A policy recommendation with justification based on model mechanisms.

Even if the exam question is theoretical, UCT often rewards policy framing.

2) Balance of Payments logic: why external accounts matter in macro models

Intermediate open-economy macro uses external balance concepts:

• current account,
• capital account,
• and overall balance of payments equilibrium.

A common approach in intermediate courses is to connect:

• exchange rates to net exports,
• domestic income to import demand,
• interest rates to capital flows.

Policy relevance

• Expansionary fiscal policy can improve output but may worsen current account.
• Monetary tightening might stabilize capital flows and currency but may reduce output.

This tradeoff is central in applied macro policy in South Africa.

3) Exchange rate pass-through: from depreciation to inflation

If your exam includes inflation effects of exchange rate movements, you should structure the causal logic:

1. Depreciation → higher price of imported goods in domestic currency.
2. Imported inputs → higher production costs (affects SRAS).
3. Higher domestic prices → CPI inflation increases.
4. Central bank may respond via higher policy rate → reduces demand.

A strong exam answer explicitly links these steps and distinguishes:

• immediate cost effects,
• indirect demand effects,
• monetary response effects.

4) UIP and the role of expectations

UCT exams frequently test whether you interpret UIP correctly. UIP links:

• domestic interest rate (i),
• foreign interest rate (i^*),
• expected depreciation/appreciation.

The critical exam skill is to avoid the “confusion swap”:

• If domestic interest is higher, UIP predicts investors expect depreciation in expectation in the future (under strict UIP assumptions without risk premia).
  But many exam variants include risk premia or imperfect credibility, so always follow the exact UIP expression given in your lecture notes.

If your lecturer uses a simplified UIP:
[
i = i^* + \frac{E^e_{t+1} – E_t}{E_t}
]
then expected change in exchange rate must be consistent with sign conventions for (E) (e.g., ZAR per USD vs USD per ZAR). A precision point:

• Always state how (E) is defined if asked (or infer based on the lecture convention).

5) Policy design: choosing the instrument and anticipating second-round effects

UCT-style questions can ask: “Which policy should be used?”
Your answer should not only state instrument effects but anticipate the rest of the model.

Example policy design for inflation

If inflation rises due to demand-pull (AD shift right)

• Tight monetary policy reduces demand and brings inflation down (short run).
• Fiscal contraction could also reduce AD, but politically/legally may be harder.

If inflation rises due to cost-push (SRAS shift left)

• Tight monetary policy reduces demand but may not shift SRAS back quickly.
• Output contraction might be severe if wage/price adjustment is slow.

Therefore:

• In cost-push, policymakers may combine monetary tightening with targeted supply-side support (even if the macro model is simplified).

UCT answers score higher when you:

• separate demand vs cost sources,
• explain why the instrument matters for that source,
• mention second-round effects (exchange rate response, expected inflation adjustment).

6) Solving and interpreting comparative statics (open economy)

A high-value technique: write down “what variable shifts” then “how equilibrium moves.”

For example, with expansionary fiscal policy:

• AD shifts right → output rises → imports rise → current account deteriorates.
• If exchange rate adjusts, depreciation may occur → net exports improves but inflation rises.
• Monetary authority may react by raising policy rate → affects interest parity and exchange rate.

Your job is to specify the net effect:

• Output: likely up initially, ambiguous after exchange rate and monetary reaction.
• Inflation: likely up due to higher demand and possibly depreciation.
• External balance: likely down initially, improving later depending on depreciation and trade elasticity.

7) South Africa as an application context (mechanism-based, not number-based)

South African macro discussions often involve:

• inflation targeting,
• risk premia and external funding conditions,
• exchange rate volatility affecting import prices,
• unemployment linked to persistent output gaps.

You can use these to justify model mechanisms:

• “If external funding is sensitive, interest rates may need to rise to stabilize the currency, which tightens domestic demand.”

When asked about “real-world fit,” avoid invented precise figures. Instead, use consistent mechanisms and directionality:

• “Depreciation pressures raise inflation through pass-through, leading to higher policy rates, which can reduce unemployment in the long run through stabilised inflation and growth.”

8) How to craft an excellent policy paragraph under exam time pressure

A top-scoring paragraph often uses this template:

1. Identify shock: demand-pull or cost-push (or external shock).
2. State model implication: which curve shifts (AD/SRAS).
3. State instrument: monetary or fiscal (or both).
4. Explain transmission: interest rate, exchange rate, net exports, inflation expectations.
5. Mention tradeoff: output loss vs inflation stabilisation.
6. Conclude: recommended policy and expected direction of key variables.

TVET Pathways (South Africa): ECON202 Applications for Colleges and TVETs — From Core Macro to Exam-Ready Answers (One Institution Cluster: STATISTICAL + POLICY PRACTICE FOR TVET)

1) Why TVET-style ECON202 prep needs a different learning engine

Even when TVET programmes do not use the same course code “ECON202,” the macro content overlaps: inflation, unemployment, GDP cycles, monetary vs fiscal policy, and basic open-economy reasoning. This section treats TVET exam preparation as application + practice rather than only theory proofs.

The exam goals you should target:

• Draw correct diagrams quickly (or label them well).
• Explain mechanisms in plain language with correct macro vocabulary.
• Interpret simple data trends (inflation, interest rates, exchange rates, output).
• Answer multi-part questions with consistent reasoning.

2) Diagram literacy toolkit: what to draw under pressure

If the exam asks about AD–AS or IS–LM, you must draw something correct even if not perfectly to scale. Your diagrams should include:

• AD downward slope (label axes: (P) or inflation proxy on vertical; (Y) on horizontal).
• SRAS upward slope.
• LRAS vertical line at (Y^*).
• IS downward and LM upward (with labels).
• If open economy is included, include a short annotation about net exports or exchange rate effects.

Fast diagram practice: 4 standard shocks

1. Demand shock (AD right)
   • (Y\uparrow), (P\uparrow) in short run.
2. Cost shock (SRAS left)
   • (Y\downarrow), (P\uparrow).
3. Fiscal expansion ((G\uparrow))
   • IS right (closed economy) / AD right.
4. Monetary expansion ((M\uparrow))
   • LM right / AD right (via lower (i)).

3) Mechanism explanations that earn marks (even if diagrams are imperfect)

Examiners often reward coherent verbal logic. Use these “mechanism phrases”:

• Demand channel: “Higher government spending increases aggregate demand, raising output.”
• Interest-rate channel: “Lower money supply raises interest rates, reducing investment and consumption.”
• Crowding out: “Higher interest rates reduce private investment, dampening the fiscal multiplier.”
• Exchange-rate channel: “Currency depreciation makes exports more competitive but increases import costs.”
• Cost-push: “Higher input costs reduce SRAS and raise the price level.”

A good answer uses 2–3 of these phrases and ties them to the direction of change in (Y), (P), and (i).

4) Applying macro to South Africa: practical storylines for exam answers

Even for TVET-level exam preparation, South African contexts help you remember causal chains. Use these storylines as “templates”:

Storyline A: Inflation rises after currency depreciation

• Depreciation increases the domestic currency price of imports.
• Import prices feed into consumer prices and production costs.
• SRAS shifts left (or inflation increases).
• If central bank responds by raising policy rate, demand cools.
• Outcome: inflation falls later, output slows in short run.

Storyline B: Recession and unemployment persist

• If output is below potential (Y^*), labour demand is weak.
• Unemployment rises.
• Policy choice: stimulatory fiscal/monetary policy can raise AD, but if inflation expectations are not anchored, inflation may rise too.

Storyline C: Fiscal expansion during a period of weak growth

• AD rises, output increases.
• Imports rise (higher leakages).
• Interest rates may rise if monetary policy is constrained.
• Exchange rate may depreciate, raising inflation.
• Therefore, the effect depends on openness, central bank reaction, and credibility.

5) Practice question style: how to structure a full-mark response

Use this structure for 10–15 mark questions:

1. Define the problem (one sentence): “We analyse the effect of a policy on output and inflation.”
2. State the model assumptions: short run sticky prices, long run output returns to potential.
3. Show the diagram shift: which curve shifts and where equilibrium moves.
4. Explain the mechanism: in two or three sentences.
5. Add long-run conclusion: what changes permanently (usually price level) vs what returns (usually output).
6. Link to the real-world policy: one short sentence about why it matters in South Africa (inflation targeting, exchange rate pass-through, import dependence).

6) Worked “template answers” you can reuse (with consistent macro language)

Below are concise sample structures you can adapt.

Template 1: Expansionary fiscal policy (G\uparrow)

• AD–AS: AD shifts right.
• Short run: (Y\uparrow), (P\uparrow).
• If money market response raises interest rates: crowding out reduces investment.
• Open economy: net exports may fall due to appreciation or higher imports.
• Long run: output returns to (Y^*); price level increases.

Template 2: Monetary tightening (policy rate up)

• LM shifts left / AD shifts left.
• Output falls; inflation decreases with lag.
• Long run: stabilised inflation with output returning to potential.
• Open economy: currency appreciation reduces import prices, strengthening disinflation.

Template 3: Cost-push shock (fuel prices up)

• SRAS shifts left.
• (P\uparrow), (Y\downarrow).
• Policy tradeoff: tightening reduces demand but may worsen output; alternative is targeted measures.
• Long run: output returns to (Y^*) but at higher price level (if shock persists).

7) Exam-ready “mini data interpretation” without needing exact numbers

If given data such as CPI inflation rising, exchange rate weakening, and interest rate changes, your answer should:

• Link inflation rise to either demand-pull or cost-push.
• Check whether exchange rate moved: if depreciation occurred, cost-push and import-price channels are plausible.
• Check whether policy rate rose: if yes, monetary tightening likely aimed to cool demand and inflation.
• Conclude using model consistent narrative: “The pattern suggests inflation pressures were partly cost-driven and monetary policy aimed to counteract second-round effects.”

8) Building speed: rapid practice for multiple-choice and short answers

For TVET-level exam readiness, aim for correctness + speed:

• Do 2 minutes of diagram sketch for each scenario:
  • AD left/right,
  • SRAS left/right,
  • IS/LM shifts.
• Do 1 minute of verbal explanation:
  • “because… therefore…”
• Do 1 minute of short conclusion:
  • “short run output changes; long run output returns to potential.”

This cycle turns theory into usable exam performance.

9) Final integrated checklist: the five most common macro exam tasks

No matter which South African institution’s style you face, exam questions typically require some combination of:

1. Draw and interpret AD–AS for demand and cost shocks.
2. Use IS–LM to explain fiscal vs monetary policy outcomes.
3. Interpret open-economy effects via exchange rate and net exports.
4. Apply UIP logic (or the specified interest/exchange relationship) to capital flows.
5. Write a policy evaluation with tradeoffs and short-run vs long-run conclusions.

Conclusion (Integrated Exam Readiness)

Intermediate macroeconomics is tested through coherent model reasoning: the examiner wants you to connect shocks and policies to graph shifts, then to directional predictions for output, interest rates, inflation, and external balance. Whether the question is framed in a closed-economy IS–LM setting or an open-economy exchange-rate context, the highest marks come from consistent causal chains, correct curve shifts, and clear short-run versus long-run conclusions.

Use this guide’s institution-cluster logic as a repeated template: UKZN for mechanism clarity and SRAS/AD thinking, Stellenbosch for policy tradeoffs and expectations/credibility, Wits for external constraints and precision in signs, UCT for balance-of-payments and pass-through-driven policy design, and TVET practice for speed, structure, and verbal mechanism explanations. If you can consistently deliver those components under exam time pressure, you’ll be well-prepared for ECON202-style Intermediate Macroeconomics and Applications assessments in South Africa.