Global Systems: Trade and Investment

Global trade and investment flows are the economic arteries of globalisation. Understanding the patterns, processes, and theories that underpin international trade is essential for analysing how the global economy functions and why some countries benefit more than others.

Key Definition: A global system is a set of interconnected components — states, institutions, TNCs, and flows — that operate at a planetary scale, creating complex patterns of interdependence.

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Patterns of Global Trade

Global trade has grown dramatically since 1945. World merchandise exports grew from approximately $58 billion in 1948 to over$58billionin1948toover25 trillion in 2022 — an increase of over 400-fold. However, this trade is highly concentrated:

Region	Share of World Merchandise Exports (2022)
Europe	36%
Asia	35%
North America	13%
Middle East	6%
South America	3%
Africa	3%
CIS (Russia and neighbours)	4%

Key patterns include:

• Intra-regional trade dominates — approximately 68% of European trade is with other European countries
• South-South trade has grown significantly — trade between developing countries now accounts for over 25% of world trade, driven by China's growing demand for raw materials
• Africa and South America remain marginal — together accounting for just 6% of world exports despite containing over 25% of the world's population
• China has become the world's largest exporter of manufactured goods, with exports of $3.59 trillion in 2022

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Theories of Trade and Development

Wallerstein's World Systems Theory (1974)

Immanuel Wallerstein (1974) developed World Systems Theory to explain the persistent inequalities in the global economy. He argued that the world operates as a single capitalist system with a clear spatial hierarchy:

graph TD
    A[Core Countries] -->|Exploit cheap labour and resources| B[Semi-Periphery]
    A -->|Extract raw materials, enforce unequal trade| C[Periphery]
    B -->|Intermediate role: exploited by core, exploits periphery| C
    B -->|Some upward mobility possible| A
    C -->|Provides cheap resources and labour| A
    C -->|Limited mobility| B

Zone	Characteristics	Examples
Core	High-skill, capital-intensive production; control of finance and technology; high wages; political power	USA, UK, Germany, Japan
Semi-periphery	Mix of core and peripheral characteristics; industrialising; intermediate wages	China, Brazil, India, Mexico
Periphery	Dependent on primary exports; low wages; politically weak; exploited by core	Many sub-Saharan African and Central American countries

Wallerstein argued that the global system is structured to benefit the core at the expense of the periphery. The periphery provides cheap raw materials and labour, while the core retains the highest-value economic activities (finance, technology, design).

Strengths and Limitations of World Systems Theory

Strengths	Limitations
Explains persistent global inequalities	Oversimplifies — countries do not fit neatly into three categories
Recognises the systemic nature of exploitation	Underestimates the agency of peripheral countries
Acknowledges mobility between zones (e.g., China's rise)	Marxist framework may overemphasise economic factors
Provides a structural explanation rather than blaming individual countries	Does not adequately explain why some peripheral countries develop (e.g., South Korea) while others do not

Exam Tip: When using Wallerstein in essays, always evaluate the theory. Examiners reward balanced analysis — acknowledge its explanatory power but note its limitations. Comparing it with Rostow's modernisation theory (1960) or Frank's dependency theory (1967) demonstrates synoptic understanding.

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Foreign Direct Investment (FDI)

Foreign Direct Investment occurs when a company invests in productive capacity in another country — building factories, acquiring businesses, or establishing operations. FDI is distinct from portfolio investment (buying shares) because it involves direct control of assets.

Patterns of FDI

• Global FDI flows totalled approximately $1.37 trillion in 2022
• Historically, the majority of FDI has flowed between developed countries — the USA, EU, and Japan accounted for over 60% of global FDI
• However, FDI to developing countries has grown significantly — China alone received $189 billion in 2020
• Africa receives the smallest share of global FDI — approximately 3-5% of global flows — reinforcing patterns of marginalisation

Impacts of FDI

Positive Impacts	Negative Impacts
Creates employment and transfers technology	May create low-wage, low-skill "screwdriver" jobs
Generates tax revenue for host governments	TNCs may use transfer pricing to minimise tax payments
Develops infrastructure and human capital	Profits may be repatriated to the home country rather than reinvested locally
Integrates host country into global markets	Can create dependency on foreign investment
Multiplier effects stimulate local economies	May outcompete and destroy local businesses