Chapter 7 – International Trade

Open and Closed Economies

Core Definitions

• Open economy – An economic system that allows its residents, firms, and government to transact with the rest of the world. Transactions include trade in goods & services, flows of capital, technology transfers, labour migration, the use of foreign currencies, etc.

• Closed economy – An economic system that does not engage in international transactions. Goods, services, capital and technology are produced and used domestically; imports and exports are either prohibited or severely limited.

Practical Examples

Why Most Modern Economies Are Open

1. Resource distribution – No single country is endowed with all natural resources.

2. Comparative advantage & specialization – See Gains-from-Trade argument below.

3. Technological diffusion – Importing capital goods and know-how accelerates growth.

4. Risk diversification – Exporting multiple products to multiple markets smooths income volatility.

Malaysia’s Historical Journey Toward Openness

• Colonial legacy (pre-1931) – Britain transformed Malaya into an export platform for rubber & tin.

• By 1931:

  • Rubber & tin exports = 80\% of total exports

  • These two commodities generated 68\% of national income.

• 1947-1965 – Immediate post-war & early-independence period; continued heavy reliance on primary commodities.

• 1990s → present – Rapid diversification: electronics, palm oil, petroleum, halal food, tourism, Islamic finance.

Significance: Malaysia’s early over-dependence on primary exports made the economy vulnerable to swings in global commodity prices, motivating both diversification and industrial policies.

What Is International Trade?

International trade = the voluntary exchange of goods & services across national borders.
Formally, trade flows appear in the Balance of Payments (BoP):
{\text{BoP}} = (X - M) + \text{NFIA} + \text{NCTA}
where

• X = exports of goods & services

• M = imports of goods & services

• \text{NFIA} = net factor income from abroad

• \text{NCTA} = net current transfers abroad.

Benefits/Gains from International Trade

1. Access to unavailable goods – Tropical fruit in temperate climates; semiconductors in resource-poor countries; vaccines, etc.

2. Exploiting specialization (comparative advantage) – Each country produces the good for which its opportunity cost is lowest, raising world output.

   • Classic Ricardian two-country, two-good model: If Malaysia can produce rubber at lower opportunity cost than, say, microchips, it exports rubber and imports chips; both countries consume beyond their production-possibility frontier (PPF).

3. Higher consumption possibilities – Trade pushes the consumption bundle outward beyond the domestic PPF.

4. Market enlargement – Small domestic firms achieve economies of scale by selling worldwide.

5. Technology transfer & productivity – Imported machinery, licensing, foreign direct investment (FDI) inject modern techniques, boosting Total-Factor-Productivity (TFP).

6. Reputational opportunities – Countries can become global champions in specific niches (e.g., Malaysia in palm oil, Germany in autos, Japan in robotics).

Malaysia’s Trade Experience – A Timeline

Macroeconomic Implications of Trade Dependence

(i) Export Earnings Volatility

• Decline in global demand → drop in X → lower GDP growth.

• Example: A global rubber price crash immediately compresses Malaysia’s foreign-exchange inflows, public revenue, and rural incomes.

(ii) Current-Account & BoP Deficits

• When M > X (and NFIA + NCTA insufficient to offset), current-account (CA) deficit arises.

• Persistent CA deficits → expanded external borrowing; higher sovereign debt.

(iii) Output & Employment

• Slower export growth slows industrial capacity utilisation; layoffs in export-oriented factories, plantation estates, mines.

(iv) GDP Growth

• Trade-to-GDP ratio for Malaysia often exceeds 120\%; therefore GDP is highly elastic with respect to external demand.

(v) National Income & Price Instability

• Commodity price cycles translate into swings in Gross National Income (GNI).

• Price instability complicates fiscal planning, monetary policy, and livelihood security for farmers.

Free Trade vs. Protectionism

Free-Trade Regime

• No tariffs, quotas, or discriminatory regulations on imports/exports.

• Built on classical liberal principles: efficiency, consumer surplus, global welfare maximisation.

Trade Barriers (Protectionism)

Government-imposed instruments that restrict or alter the pattern of trade to pursue domestic objectives.

1. Tariff Barriers

Economic consequences:

• Raises domestic price; protects local producers but reduces consumer welfare.

• Generates government revenue.

• Creates dead-weight loss (triangular area between supply & demand).

2. Non-Tariff Barriers (NTBs)

1. Quota – Quantitative ceiling on imports (e.g., max 10,000 tonnes of sugar per year).

   • Does not raise tariff revenue but can raise domestic price via scarcity rents, often captured by import licence holders.

2. Embargo – Total trade ban with specific nation(s).

   • Malaysia maintains an embargo on Israel; U.S. embargo on Cuba (1959-2016).

3. Foreign-Exchange (FX) Control – Central bank restricts availability of foreign currency for import payments or sets dual exchange rates.

   • Example: Selling FX above official rate to discourage non-essential imports.

4. Incentives & Subsidies – Rather than penalising imports, government directly supports domestic firms.

   • Income-tax holidays, low-interest loans, R&D grants, export credit agencies, infrastructure, knowledge transfer.

Why Governments Protect (Justifications)

1. Infant-Industry Argument – Young sectors (e.g., national car project) need temporary shelter to achieve minimum efficient scale & learn-by-doing.

2. Fiscal Revenue – In low-income economies, tariffs are administratively easier to collect than income taxes.

3. Employment & BoP Improvement – Import substitution can shift demand toward local labour and reduce CA deficits.

4. Anti-Dumping – Counteract foreign firms that sell below cost to grab market share (predatory pricing).

5. Cultural/Consumer Taste Preservation – Limit foreign media or food to maintain cultural identity (e.g., French quotas on U.S. films).

Philosophical tension: Efficiency vs. Equity/Nation-building.

Ethical, Philosophical, & Practical Considerations

• Fairness & Development – Free trade can widen inequality if gains accrue to capital-owners while unskilled labour faces wage depression.

• Environmental externalities – Trade can shift pollution-intensive industries to lax-regulation countries (“pollution havens”).

• Sovereignty – Heavy dependence on foreign demand may undermine policy autonomy (IMF conditionality, supply-chain coercion).

• Geopolitics – Embargoes (e.g., against apartheid South Africa, modern Russia) serve moral or strategic objectives beyond economics.

• Digital trade & data privacy – 21st-century flows concern not only physical goods but also cross-border data, raising privacy and cyber-security issues.

Key Numerical Snapshots & Formulas

1. Commodity dependence (1931):
   \text{Rubber\;\&\;Tin\;share} = 80\%
   \text{Income\;from\;Rubber\;\&\;Tin} = 68\% of national income.

2. Tariff examples:

   • Ad-valorem: t_a = 0.50 (50\%)

   • Specific: t_s = RM\,20 / \text{unit}

3. Current-account identity:
   \text{CA} = X - M + \text{NFIA} + \text{NCTA}

4. Dead-weight loss (for small country, linear curves):
   DW = \tfrac{1}{2} \times (Pt - Pw) \times (M0 - Mt)
   where Pt = tariff-inclusive price, Pw = world price, M = imports.

Connections to Foundational Principles

• Comparative Advantage (Chapter 1–Micro foundations) – International trade is the macro-level application of opportunity cost.

• Aggregate Demand/Supply (Chapter 4) – Net exports NX = X - M constitute a component of Aggregate Demand. A tariff that reduces imports increases NX ceteris paribus, shifting AD rightward, but may invite retaliation.

• GDP Measurement (Chapter 2) – GDP (expenditure approach): Y = C + I + G + (X - M). An export slump reduces Y directly.

• Balance of Payments & Exchange Rates (Chapter 6) – Persistent CA deficits put downward pressure on the ringgit; central bank interventions tie into FX controls discussed above.

Real-World Illustrations & Case Studies

• US-China Trade War (2018-22) – U.S. imposed ad-valorem tariffs (10–25\%) on Chinese goods; China retaliated. Highlights interaction between tariffs, supply chains, and consumer prices.

• COVID-19 Global Shock – Collapse of tourism & oil demand hit CA balances of Malaysia, Thailand, Indonesia. Prompted temporary export bans on PPE and rice (non-tariff measures).

• Subsidised Electric Vehicles (EVs) – Europe accuses China of dumping EVs subsidised by the state; EU initiates investigation under WTO anti-dumping rules.

Summary & Exam Tips

1. Define key terms precisely: open vs. closed economy, tariff, quota, embargo.

2. Illustrate gains-from-trade with a simple two-good Ricardian table.

3. Remember statistics – 80\% export share (rubber & tin), 68\% income contribution, RM20 specific tariff example.

4. Analyse CA deficits by linking export price declines to BoP borrowing.

5. Contrast ad-valorem vs. specific tariffs, and tariff vs. quota effects on welfare.

6. Evaluate protectionist arguments (infant industry, revenue) versus efficiency costs.

7. Connect material to current events (trade wars, supply-chain re-shoring, RCEP).

Good luck!