EECM3714: International Economics Study Pack

International economics studies how trade, capital flows, exchange rates, and institutions shape economic outcomes across countries. In practice, it brings together models of comparative advantage, trade policy, and balance-of-payments dynamics, then connects them to current events such as commodity price shocks, exchange-rate volatility, and global value chains. For South African students preparing for EECM3714, mastery requires both conceptual clarity (models, assumptions, mechanisms) and exam-ready execution (clear diagrams, structured answers, and consistent terminology tied to policy relevance in South Africa and the wider region). This study pack consolidates the key themes, typical question patterns, worked examples, and common pitfalls—so you can move from “knowing” to “scoring”.

Section 1: Foundations of International Trade & Core Models (with Exam-Style Applications)

International economics begins with a deceptively simple question: why do countries trade? The answer matters because nearly every later topic—tariffs, exchange rates, trade agreements, and growth—depends on the incentives created by trade. Your exam performance improves dramatically when you (1) define each concept crisply, (2) identify the mechanism (not just the conclusion), and (3) connect the model to a plausible real-world scenario.

Comparative Advantage and Opportunity Cost (The First Principle)

Comparative advantage explains trade even when one country is “less efficient” in producing everything. The engine of the theory is opportunity cost: the cost of producing one good in terms of foregone production of another.

A common exam approach is to set up an opportunity-cost table and ask which good each country should specialize in.

Example setup (exam-friendly logic)

Imagine:

South Africa produces maize and cars
Brazil produces maize and cars

Suppose opportunity costs differ:

South Africa gives up fewer cars to produce additional maize than Brazil does.
Brazil gives up fewer maize to produce additional cars than South Africa does.

Then:

South Africa has comparative advantage in maize
Brazil has comparative advantage in cars

Key points to write:

Absolute productivity is not what matters.
Opportunity cost ratios determine comparative advantage.
Under specialization and trade, total global output rises and then trade creates gains.

Where students lose marks

Using absolute advantage (“South Africa is better at cars”) instead of comparing opportunity costs.
Claiming that comparative advantage implies “everyone benefits” without discussing distribution—because within a country, some groups (workers in exporting sectors vs import-competing sectors) can lose.

Link to policy relevance

South Africa’s economy has large skill and resource heterogeneity. Comparative advantage arguments often align with:

export strengths in commodities and some manufacturing,
import dependence for certain manufactured inputs or consumer goods,
and ongoing debates about industrial policy to diversify exports.

In exam answers, it helps to acknowledge: trade gains exist but adjustment costs and inequality are real, and policy may aim to mitigate them.

The Production Possibility Frontier (PPF) and Gains from Trade

A strong diagram-based explanation uses the PPF:

A country’s PPF shows maximum feasible combinations of two goods.
Under autarky (no trade), a country chooses a point on its PPF based on preferences.
Trade changes the choice because a country can consume at a point beyond its PPF.

Steps for an exam diagram description

Draw South Africa’s PPF (downward sloping, bowed if increasing opportunity cost).
Mark autarky consumption point (where the highest indifference curve touches the PPF).
Introduce the world relative price line (slope equals opportunity cost at the world price).
The new production choice occurs where the relative price line is tangent to the PPF.
Consumption occurs at a point on the budget line given by world prices.
Gains from trade are the difference between autarky consumption and post-trade consumption.

Why tangency matters

Tangency ensures production is optimized given relative prices. You should say explicitly:

“At the world price ratio, the economy produces where the opportunity cost equals the world price.”

Specific Factors Model (Short-Run Distributional Effects)

The specific factors model refines trade analysis by adding at least one immobile factor (e.g., land for agriculture, or sector-specific capital). In the short run, factors are not perfectly mobile across sectors, so wages and returns differ.

Core mechanism

In sector A (export good), the country is relatively productive; the sector expands.
The mobile factor (often labor) reallocates toward the expanding sector.
The sector-specific factor gains if its sector expands; it loses if the sector contracts.

Exam-ready conclusion phrasing

“Trade increases income for owners of specific factors in the expanding sector, while owners of specific factors in the contracting sector may lose.”
“The mobile factor experiences wage effects depending on aggregate demand for labor and sector composition.”

Linking to South Africa

You can use realistic narratives:

Export-oriented mining and agriculture depend on land/sector-specific capital.
Manufacturing import competition can pressure certain firms and the jobs they support.
Adjustment is not instantaneous, which motivates policy debates about retraining, safety nets, and structural transformation.

Heckscher–Ohlin (Factor Endowments) and Stolper–Samuelson

Heckscher–Ohlin (H-O) argues that countries export goods that use their abundant factors intensively.

Capital-abundant country exports capital-intensive goods.
Labor-abundant country exports labor-intensive goods.

Stolper–Samuelson theorem

It predicts how trade affects factor returns:

If the price of a good rises due to trade specialization, the real return to the factor used intensively in producing that good increases.
The return to the other factor decreases.

Key assumption you should mention in exams

Perfect competition, factor mobility within countries, no factor mobility across countries.
Production functions and technology ensure factor intensity differences.

Even if a question doesn’t ask for assumptions, a brief mention signals depth and earns marks.

Econometric/Empirical Bridges: “Models vs Data” in International Economics

In many EECM3714 questions, you’ll be expected to handle “theory meets evidence.” A good answer recognizes:

models are simplifications,
empirical tests depend on measurement quality and data availability,
and outcomes can differ due to institutions, trade frictions, and non-tariff barriers.

Typical empirical variables you might discuss

trade openness: (exports + imports)/GDP
terms of trade: export prices/import prices
exchange rate pass-through into inflation
FDI inflows: related to market size, risk, and institutional quality
tariff and non-tariff barriers: measures of trade costs

Summary of Section 1 Exam Tactics

When you’re answering:

Start with definitions (comparative advantage, autarky, opportunity cost).
Use a structured diagram narrative (PPF + price line + tangency).
For distribution, cite specific factors or H-O + Stolper–Samuelson.
Add a South African or regional policy connection (adjustment costs, sectoral impacts).

This foundation is what makes later topics—trade policy, currency regimes, and balance of payments—coherent instead of memorized.

Section 2: Trade Policy, Tariffs, Quotas, and Non-Tariff Barriers (with South African Policy Context)

Trade policy is where international economics meets real political choices. Tariffs and quotas affect prices, government revenue, and producer/consumer welfare, but they also generate distortionary effects and can encourage rent-seeking. For South African students, this section should feel highly relevant because trade policy intersects with local industry support, regional trade agreements, and international pressures.

Tariffs: Partial Equilibrium Welfare Effects

A tariff is a tax on imports. In partial equilibrium (one good market), you can analyze:

domestic price rises relative to world price,
imports fall,
consumption falls,
production increases.

Standard welfare components in tariff analysis

Consumer surplus decreases (domestic price rises).
Producer surplus increases (higher domestic price).
Government revenue increases (tariff times imports).
Deadweight losses:
- production distortion: resources move to less efficient domestic production.
- consumption distortion: consumers buy less at higher prices.

Diagram language you should use

“The tariff raises the domestic price from Pw to Pt.”
“Import demand shifts inward; quantity imported decreases.”
“The area representing total welfare loss consists of triangles for production and consumption distortions.”

Even if diagrams are not drawn, describing these areas is often enough to earn process marks.

Tariff vs Quota: Same Restriction, Different Outcomes

A quota sets a maximum quantity of imports allowed.

Quota outcomes

Domestic price rises similarly to a tariff (in many textbook models with binding quotas).
Imports restricted to the quota quantity.
Distribution depends on quota allocation.

Crucial exam distinction: quota rent

Under a quota, the difference between domestic price and world price becomes quota rent.
Who receives it depends on whether licenses are auctioned or allocated for free.

Three common cases to remember

Quota licensed for free → rent goes to import license holders.
Quota auctioned → rent goes to the government (like revenue).
Uncertainty or administrative discretion → rent-seeking and corruption potential rises.

Why quotas can be worse than tariffs

Non-transparent administration can magnify welfare losses.
Rent-seeking wastes resources.
Enforcement costs can increase.

Tariff Escalation and Effective Protection (Industrial Policy)

Tariff escalation occurs when tariffs are higher on processed goods than on raw inputs. This discourages local value addition and locks countries into exporting raw materials.

Effective rate of protection (ERP) measures protection of the value-added in an industry, not just nominal tariff rates.

Exam-style method for ERP (conceptual steps)

Identify tariff on output (processed good).
Identify tariff on imported inputs (intermediate goods).
Compute how these tariffs change the domestic price relative to the world price.
Derive effective protection on value added.

A top-scoring answer briefly explains why:

nominal tariffs may look moderate,
but escalated tariffs can strongly protect final goods while punishing domestic upstream industries.

South African relevance

South Africa’s industrial policy and manufacturing strategy face the challenge of importing inputs (machinery, chemicals, components). If tariffs on intermediate goods are high relative to output, industries can struggle. Conversely, lower tariffs on inputs can support competitiveness, even if consumer goods face higher protection.

Anti-Dumping Duties and Safeguards

Not all trade restrictions are simple tariffs. Two frequently tested categories:

Anti-dumping duties: imposed when imports are sold below “normal value” to cause injury to domestic industry.
Safeguard measures: temporary restrictions when imports surge and cause serious injury.

What examiners look for

A clear definition.
A short explanation of the trigger conditions.
The welfare logic: these measures can protect domestic firms but may raise prices for consumers and downstream industries.

Counter-argument you should present

Dumping allegations can be used strategically by lobbying firms.
Enforcing consistent and transparent standards reduces misuse.

Non-Tariff Barriers (NTBs): Standards, Licenses, and Compliance Costs

A non-tariff barrier includes:

quotas (already covered, but in a broader sense),
technical regulations,
sanitary and phytosanitary measures (SPS),
import licensing,
customs delays,
rules of origin.

Why NTBs are difficult but important

Tariffs are easy to quantify; NTBs are often embedded in administrative processes.
Compliance costs can be large, especially for smaller firms.

Example logic for NTB impact

A food standard may be well-intended (consumer protection) but can raise costs for exporters.
If only certain exporters can meet certification requirements, market entry declines.

Rules of Origin and Trade Agreements in the Southern African Context

Rules of origin determine whether goods qualify for preferential tariff treatment under trade agreements.

Mechanism

Firms must prove their inputs meet origin criteria.
Complex rules increase administrative costs.
They can disadvantage firms relying on imported intermediate goods.

Exam-friendly statement

“Even when nominal tariffs under a free trade area are low, rules of origin can effectively restrict trade by raising compliance costs.”

Common Exam Questions and How to Answer Them

Question pattern 1: “Compare welfare effects of a tariff and a quota.”

A top answer:

States that both restrict imports and raise domestic prices.
Identifies welfare components (consumer loss, producer gain, government revenue or quota rents).
Explains deadweight losses and distortion.
Concludes with distributional differences.

Question pattern 2: “Explain the concept of effective protection and tariff escalation.”

A top answer:

Defines nominal vs effective protection.
Explains how tariffs on inputs affect value added.
Connects to incentives for domestic processing.

Question pattern 3: “Discuss non-tariff barriers and give examples.”

A top answer:

List NTB types,
explain compliance cost channels,
mention administrative delays and standards,
and connect to sectoral effects in South Africa.

Summary of Section 2 Exam Tactics

Tariffs and quotas: always mention welfare triangles and distribution.
Quotas: always mention quota rents.
Effective protection: link to value added and tariff escalation.
NTBs: emphasize compliance costs and administrative friction.
Always include at least one South African relevant angle (industrial inputs, standards, trade compliance, or downstream effects).

Section 3: Exchange Rates, Purchasing Power Parity, Interest Parity, and Open-Economy Macroeconomics

Exchange rates and open-economy macroeconomics translate international economics into the “big picture” of inflation, growth, and external balances. This section teaches you to interpret exchange rate movements and policy trade-offs. For South African economics students, the exchange rate is not an abstract variable—it is tied to imported inflation, commodity prices, and monetary policy credibility.

Exchange Rate Basics and Key Definitions

An exchange rate can be:

nominal: price of one currency in terms of another,
real: nominal rate adjusted for relative price levels (i.e., competitiveness).

You should know direction:

A depreciation means the domestic currency buys less foreign currency (domestic currency weaker).
A depreciation can raise import prices and potentially shift demand toward domestically produced or locally supplied goods.

Purchasing Power Parity (PPP)

Absolute PPP: exchange rates adjust so that identical baskets cost the same in all countries.

If domestic prices rise relative to abroad, domestic currency should depreciate to restore parity.

Relative PPP: focuses on inflation differentials:

Expected depreciation ≈ domestic inflation − foreign inflation.

Exam pitfalls

PPP doesn’t hold perfectly due to:
- non-tradables,
- trade barriers,
- transport costs,
- market imperfections.
But PPP can still be useful for long-run expectations.

Interest Rate Parity (IRP): Uncovered and Covered

International investors compare returns across countries. Interest rate parity links interest rates and expected exchange rate changes.

Uncovered Interest Parity (UIP)

Expected depreciation of domestic currency equals interest rate differential (up to sign conventions).
If domestic interest rates are higher, investors expect the currency to depreciate (which should offset higher returns).

Covered Interest Parity (CIP)

Involves forward exchange rates.
Under CIP (no arbitrage), the forward premium/discount matches the interest differential.

Why exam questions ask this

Because it connects to:

capital flows,
expectations,
hedging via forward contracts.

The Balance of Payments (BoP) and the Current Account

International economics cannot ignore the accounting identity of external balances.

Standard BoP components

Current account: trade in goods/services, income (e.g., dividends/interest), and transfers.
Capital/financial account: cross-border investment and financing.
Errors and omissions: statistical discrepancy.

A current account deficit must be financed by capital inflows (or reserves drawdown) in a simplified view.

Exam-ready framing

“A persistent current account deficit implies ongoing net capital inflows or reserve changes.”
“Sustainability depends on whether deficits are financed by stable capital and on growth prospects.”

The Mundell–Fleming Model (IS–LM for an Open Economy)

A classic open-economy macro model uses:

IS: goods market (output and interest rate relationship),
LM: money market (output and interest relationship),
plus external sector conditions via exchange rates and capital mobility.

Key assumption

High capital mobility causes interest rates to align with global rates, making exchange-rate expectations central.

Different exchange rate regimes

Fixed exchange rate:
- central bank intervenes to maintain the peg,
- monetary policy is constrained by external balance needs.
Floating exchange rate:
- exchange rate adjusts,
- monetary policy can influence domestic output more directly but at the cost of exchange rate variability.

Monetary Policy and Depreciation/Depreciation Pass-Through

A key application concerns how exchange rates move and how they feed into inflation.

Pass-through mechanism (granular)

Exchange rate depreciation raises the domestic-currency price of imports.
Import prices feed into:
- consumer prices (direct import effects),
- production costs (input costs),
- inflation expectations.
Central banks may respond with tighter monetary policy, affecting output.

In South Africa, this chain is frequently discussed in monetary policy debates, especially when global shocks affect the rand.

Fiscal Policy and Crowding-Out (Open Economy Version)

In a closed economy, fiscal expansion increases output and may crowd out private investment via higher interest rates. In an open economy:

with high capital mobility, the interest rate may rise but exchange rate adjusts.
output effects depend on exchange-rate regime.

Diagram narrative you can reuse

Fiscal expansion shifts IS right.
In floating regimes, exchange rate typically depreciates (or appreciates depending on model sign conventions), partially offsetting demand effects.

Policy Trade-Offs: Sustainability and Inflation Targeting

South Africa often operates in a framework emphasizing inflation targeting with the exchange rate as a channel of transmission. Exam answers should reflect:

depreciation can boost net exports in the short run but raise inflation via pass-through.
central bank must balance stabilizing inflation vs supporting growth.

Putting It All Together: A Consistent Short-Run Story

A high-quality exam response uses a narrative with cause-effect links:

A depreciation occurs (due to capital outflows, risk premium changes, or inflation differential).
Import prices rise → inflation increases.
Central bank tightens policy to contain inflation.
Tight policy reduces domestic demand and output growth.
Over time, competitiveness effects may partially improve the current account, but with lags.

Common Exam Question Patterns

Pattern 1: “Explain PPP and discuss why it may fail in the short run.”

Answer structure:

define PPP,
mention relative PPP,
list reasons for failure (non-tradables, barriers, transport),
conclude short-run deviations are common.

Pattern 2: “Discuss UIP and capital flows.”

define UIP,
link interest differential to expected depreciation,
note expectations and risk premia can cause UIP to fail empirically.

Pattern 3: “Fixed vs floating: analyse effects of monetary expansion.”

fixed: central bank adjusts or loses control due to reserve pressure,
floating: monetary policy shifts interest rates → exchange rate adjusts → output responds depending on capital mobility.

Summary of Section 3 Exam Tactics

Always define nominal vs real exchange rates.
PPP: emphasize long-run idea and short-run deviation reasons.
IRP: distinguish uncovered vs covered (UIP vs CIP).
Use BoP logic to connect current account deficits to financing.
Apply Mundell–Fleming reasoning to fixed vs floating regimes.
Provide a coherent transmission mechanism: exchange rate → prices → central bank action → output.

Section 4: International Capital Flows, FDI, Risk Premiums, and Balance of Payments Dynamics (with Regional Development Lens)

If trade explains the movement of goods, capital flows explain the movement of money—and that movement can stabilize or destabilize an economy. EECM3714 frequently tests how investors react to interest rates, risk, growth prospects, and exchange rate expectations, and how countries manage openness while protecting macro stability. This section develops a structured way to analyze FDI, portfolio flows, and crisis dynamics, then connects them to policy choices that matter for South Africa and the region.

Types of Capital Flows: FDI vs Portfolio vs Debt

A strong answer distinguishes flows because they have different implications for stability.

Foreign Direct Investment (FDI)

long-term investment by controlling or significantly influencing a foreign business.
Often involves building capacity, technology transfer, and managerial know-how.

Portfolio investment

purchases of equity and bonds without controlling ownership.
Typically more sensitive to interest rate differentials and risk sentiment.

Debt flows

loans and bond issuance.
Risk depends on maturity structure and rollover capacity.

Determinants of FDI: A Multi-Channel Framework

FDI decisions usually reflect:

Market size: potential demand.
Growth prospects: expected future profitability.
Institutional quality: property rights, contract enforcement.
Infrastructure: transport, energy reliability.
Risk and stability: political risk, macro stability, exchange rate uncertainty.
Cost structure: wages, taxes, regulatory burden.

Exam technique: “push and pull factors”

Pull factors: host-country attractiveness (market access, incentives).
Push factors: investor incentives from home countries (low returns elsewhere).

FDI and Technology/Spillovers (Why it matters beyond capital)

Even if FDI brings inflows, examiners often want you to discuss what it changes:

productivity through learning-by-doing,
spillovers to domestic firms (suppliers and subcontracting),
human capital development via training.

Counter-argument:

not all FDI generates spillovers; outcomes depend on linkages, local content policies, and absorptive capacity.

Portfolio Flows, Risk Premiums, and Exchange Rate Movements

Portfolio flows often respond rapidly to changes in:

global interest rates,
risk sentiment (e.g., global “risk-off” periods),
political events,
exchange rate expectations.

Risk premium concept (what to say)

Investors demand extra compensation for holding assets perceived as risky.
Higher risk premium raises required returns and may reduce capital inflows or trigger outflows.

Balance of Payments Adjustment in Practice

In simplified textbook models, adjustment happens through:

exchange rate changes,
income/output changes,
and/or changes in monetary policy.

In reality, adjustment is influenced by:

reserves adequacy,
credibility of the monetary/fiscal framework,
domestic financial market depth.

Common exam narrative for adjustment

Current account deficit widens.
Capital inflows slow (or outflows rise).
Exchange rate depreciates.
Depreciation improves trade balance with lags (J-curve effects).
Inflation rises from pass-through, prompting monetary tightening.
Output falls, reducing import demand.

The J-Curve Effect (Trade Balance Response Over Time)

A key timing concept:

Immediately after depreciation, import volumes may not fall because contracts and consumption habits adjust slowly.
Over time, imports become more expensive, demand shifts, and the trade balance improves.

A good exam response includes:

“short-run worsening due to price effects,”
“long-run improvement due to quantities adjusting.”

Capital Controls and Their Trade-Offs

When macro instability rises, governments may consider:

capital controls (taxes, limits on outflows or inflows),
regulatory measures on banks,
macroprudential policies.

Exam balanced argument

Pro: can reduce speculative outflows and buy time for reforms.
Con: reduces inflows, harms investor confidence, pushes flows into informal channels.

Crisis Dynamics: Sudden Stops and Refinancing Risk

A “sudden stop” occurs when capital inflows abruptly stop.
Consequences:

currency depreciation,
tightening of credit,
falls in investment and output,
higher debt burdens in domestic currency terms.

Exam-ready refinancing logic

If firms or government borrow in foreign currency:

depreciation increases domestic currency cost of servicing debt,
this can lead to defaults, bankruptcies, and deeper recessions.

Case-Linked Reasoning: Commodity Shocks and External Accounts

South Africa is affected by global conditions, including:

commodity price cycles,
investor risk appetite,
energy and food import price shocks.

A credible answer links:

commodity export revenue changes → current account changes,
reserve levels and capital inflow changes → exchange rate behavior.

Sustainability and External Debt Indicators

Examiners may ask you to discuss sustainability. You can mention:

debt-to-GDP,
interest payments-to-revenue,
foreign currency debt share,
maturity profile.

Your exam writing should be:

clear that sustainability is not just the debt stock but also the ability to service it under exchange rate and growth conditions.

Policy Packages for Open Economies

A practical concluding framework:

maintain credible monetary policy to anchor inflation,
pursue fiscal discipline to reduce risk premiums,
strengthen trade competitiveness,
deepen domestic financial markets to reduce rollover risk,
improve institutions to support long-term investment.

Common Exam Questions

Pattern 1: “Compare FDI and portfolio flows.”

Answer:

definition and time horizon,
stability vs volatility,
links to productivity and spillovers,
policy implications.

Pattern 2: “Explain sudden stop and exchange rate depreciation.”

Answer:

describe mechanism,
link to balance of payments,
show feedback: depreciation → inflation → tighter policy → output.

Pattern 3: “Discuss whether capital controls are beneficial.”

Answer:

acknowledge circumstances,
show trade-offs,
propose complementary reforms.

Summary of Section 4 Exam Tactics

Always classify flow types and explain stability differences.
Use risk premium and exchange rate expectations as a central mechanism.
Link current account deficits to financing capacity.
Include a timing dimension (J-curve, lags).
When discussing controls, present both benefits and risks.

Section 5: Integrated Exam Practice—Answer Construction, Diagrams, and South African University/TVET Course Readiness (EECM3714 Style)

This final section turns knowledge into exam performance. The goal is not only to understand topics but to produce high-scoring answers in the formats typically used in international economics assessments. Because EECM3714 content intersects across models, policies, and macro dynamics, you need a reusable structure for: definitions, diagram logic, comparative statics, and evaluation.

The EECM3714 “Answer Blueprint” (Reusable Structure)

Most high-scoring questions share an underlying logic: a claim must be supported by a mechanism, not just a conclusion. Use the following blueprint:

Define key terms (1–3 sentences).
State the model/approach (e.g., partial equilibrium, PPF, Mundell–Fleming).
Explain the mechanism step-by-step (cause → effect).
Use diagrams or diagram language (tariffs: welfare triangles; PPP: price ratio; exchange rate regimes: shifts and outcomes).
Discuss distribution and evaluation (who gains/loses; assumptions and limitations).
Connect to real-world relevance (South Africa or region; policy implications).

What examiners reward

Internal consistency (no contradictory statements).
Correct diagram slopes and labels (even if drawn loosely).
Clear sign logic (depreciation vs appreciation; price changes; import demand response).

Diagram Checklist: What to Get Right Every Time

Tariff/Quota diagram checklist

World price line at Pw.
Domestic price rises to Pt (tariff) or Pq (quota).
Mark consumption point left of production if imports exist.
Government revenue rectangle under tariff wedge.
Deadweight loss triangles identified correctly.

PPF/Comparative advantage checklist

Correct slope reasoning for world price line.
Production at tangency.
Consumption beyond PPF to show gains.

Open economy policy checklist (Mundell–Fleming narrative)

Specify exchange rate regime (fixed vs floating).
Identify policy effect path: monetary/fiscal → interest rate → exchange rate → output/imports/inflation.

Exam Question Walkthroughs (Worked Answer Skeletons)

Below are exam-style prompts and how to construct answers. These are not full essays; they are structured skeletons that you can expand in your own words.

Walkthrough 1: “Analyse the welfare effects of a tariff and compare it to a quota.”

Skeleton:

Define tariff and quota.
State that both restrict imports, raising domestic price.
Tariff:
- Consumer surplus down.
- Producer surplus up.
- Government revenue up.
- DWL from production and consumption distortion.
Quota:
- Similar price rise and similar triangles.
- Replace government revenue with quota rent (depends on allocation).
Compare:
- Welfare level likely lower for quota if rent is captured by private actors rather than government.
Evaluation:
- Mention non-tariff enforcement costs and political economy factors.

Walkthrough 2: “Explain relative PPP and discuss reasons for short-run deviations.”

Skeleton:

Relative PPP definition: depreciation ≈ inflation differential.
Mechanism: currency weakens to offset price differences.
Short-run deviations:
- non-tradables,
- sticky prices,
- transport costs,
- capital flows and risk premia,
- measurement issues (PPP basket differences).
Evaluation:
- PPP holds better long-run than short-run.

Walkthrough 3: “Using interest rate parity, explain how changes in domestic interest rates affect exchange rates.”

Skeleton:

Define UIP (expected depreciation linked to interest differential).
If domestic interest rises:
- expected depreciation increases (offsetting returns).
Discuss failure of UIP:
- risk premia changes,
- investor expectations not perfectly rational,
- global shocks.
Connect to policy:
- monetary tightening can influence exchange rate, inflation, and external balances.

Walkthrough 4: “Discuss determinants of FDI and whether FDI always improves welfare.”

Skeleton:

Define FDI.
Determinants:
- market size, risk, institutions, infrastructure, cost structure.
Welfare benefits:
- capital deepening, jobs, productivity, spillovers.
Counterpoints:
- weak linkages,
- limited spillovers,
- profit repatriation,
- potential environmental/social costs.
Conclusion:
- net effect depends on absorptive capacity, linkages, and regulation.

South Africa-Focused Application Prompts (How to Make Answers Relevant)

Many questions can be answered with generic examples, but marks improve when you reference South Africa-specific channels consistently. Use prompts like:

“Explain how a depreciation could affect inflation and monetary policy in South Africa.”
“Discuss trade policy using the idea that protection can distort upstream input costs.”
“Explain how commodity price shocks affect the current account and exchange rate.”

Practical South Africa “channels” you can write about consistently

import prices → inflation,
external financing → exchange rate risk,
export composition → terms of trade,
policy credibility → risk premium.

Consistency Discipline: Avoiding Contradictions in Exam Writing

A common failure mode is to state two mechanisms at once that conflict:

Example contradiction: “Depreciation reduces inflation immediately” while also saying “pass-through raises inflation.”
Fix by specifying timing:
“Short-run: pass-through increases inflation; medium-run: competitiveness may help external balance, but central bank reacts to contain inflation.”

Also avoid ambiguous direction:

“exchange rate increases” must be clarified: does it mean appreciation or depreciation?
Use “appreciates/depreciates” in plain words.

Study Plan Integration: Turning This Pack into Mastery

A practical approach that aligns with model learning:

Memorize definitions and assumptions for each model:
- Comparative advantage, specific factors, H-O.
- Tariffs/quotas welfare logic.
- PPP and IRP.
- Mundell–Fleming regimes.
- FDI determinants and BoP links.
Practice diagrams until you can describe them in 30 seconds.
Write structured paragraphs using the blueprint.
Do timed questions: 30–45 minutes per full response.
Review errors:
- wrong welfare components,
- missing evaluation,
- unclear policy regime.

Course Readiness Cluster (Institution-Focused Titles and What They Cover)

Below are institution-focused clusters designed to match how South African university, college, and TVET modules often structure assessments around international economics. Each cluster includes exam-relevant topics and recommended practice angles tied to typical course themes. (These are study-ready descriptors: adapt to your course outline and lecturers’ emphasis.)

Cluster A: University of Johannesburg — “EECM3714 Exam Notes: International Economics for Open-Economy Macroeconomic Analysis”

Core coverage focus:

comparative advantage → trade gains and adjustment,
PPP and interest parity → exchange rate explanations,
Mundell–Fleming → fixed vs floating policy analysis,
balance of payments → sustainability narratives.

Practice emphasis:

write policy effect sequences (policy → interest/exchange rate → output/inflation → BoP).
produce diagram language for each model.
include a short “limitations” sentence using assumptions.

Cluster B: University of Pretoria — “EECM3714 Exam Notes: International Trade Policy, Welfare Effects & Institutional Constraints”

Core coverage focus:

tariff vs quota welfare decomposition,
quota rents and political economy,
effective protection and tariff escalation,
non-tariff barriers and compliance costs,
trade agreement mechanisms (rules of origin logic).

Practice emphasis:

always separate consumer, producer, government, and deadweight losses.
for NTBs, explain channels (compliance cost, administrative delay, standards).
include a “policy relevance to South Africa” sentence.

Cluster C: Stellenbosch University — “EECM3714 Exam Notes: Comparative Advantage, Factor Models & Distributional Outcomes”

Core coverage focus:

opportunity cost and PPF gains from trade,
specific factors model (short-run distribution),
Heckscher–Ohlin and Stolper–Samuelson (factor returns),
evaluation of model assumptions vs real world.

Practice emphasis:

show mechanism of distributional effects.
write factor-intensity reasoning clearly.
include at least one counter-argument about empirical realism.

Cluster D: University of KwaZulu-Natal — “EECM3714 Exam Notes: International Capital Flows, FDI, and External Stability”

Core coverage focus:

FDI vs portfolio vs debt characteristics,
risk premium and exchange rate links,
sudden stop dynamics and refinancing risk,
current account financing and external sustainability.

Practice emphasis:

explain timing (short-run vs medium-run).
link capital flow changes to BoP outcomes.
include both benefits and risks of openness.

Cluster E: TVET College Sector (General TVET Alignment) — “EECM3714 Exam Notes: Applied International Economics for Trade and Policy Reasoning”

Core coverage focus:

trade policy basics: tariffs, quotas, NTBs,
exchange rate basics: depreciation/appreciation effects,
applied balance-of-payments logic,
case-style explanation of real-world events (commodity prices, inflation).

Practice emphasis:

use plain-language mechanisms with correct economics terms.
include small numeric exercises where possible (relative price logic, simple welfare decomposition).
practice “short answer” responses with full marks structure (definition + mechanism + conclusion).

Final Exam Readiness: A Tight Checklist Before Submission

Use this checklist right before you submit a written exam response:

Did I define the key term(s)?
Did I name the correct model/approach?
Did I describe the mechanism step-by-step?
Did I include diagram language where required?
Did I answer the question’s “compare/discuss” instruction explicitly?
Did I include one evaluation limitation or counter-argument?
Did I keep directionality correct (depreciation vs appreciation; price up vs down)?
Did I ensure internal consistency (no contradictions across paragraphs)?

Summary of Section 5 Exam Tactics

Use a blueprint for every answer.
Master diagram language (not only diagrams).
Build mechanistic chains with correct direction.
Include evaluation and policy relevance.
Keep writing consistent and contradiction-free.

Closing Synthesis

EECM3714 International Economics is best mastered as an integrated system: trade models explain specialization and welfare, trade policy explains how distortions reshape incentives, exchange rate models explain how currencies react to prices and interest rates, and capital flow/balance-of-payments dynamics explain how external accounts are financed and stabilized. If you practice answers using mechanisms, diagram language, and evaluation, your performance becomes predictable and high. Focus on consistency, clarity, and the ability to translate theory into South Africa-relevant policy logic—because that combination is what turns preparation into exam success.