World Economic Geography — Global Agriculture, Industries, Trade Routes & Urbanisation

Introduction

World economic geography examines the spatial distribution of economic activities -- agriculture, industry, trade, and urbanisation -- and the factors that shape their patterns. For UPSC GS-I, this is a foundational topic linking physical geography (climate, resources, terrain) with human geography (population, technology, policy). Questions frequently cover global agricultural patterns, industrial regions, trade routes, chokepoints, and urbanisation trends.

Part I -- Global Agriculture Patterns

1.1 Types of Agriculture

1.2 Major Crop Belts of the World

Wheat:

Rice:

• Major producers: China, India, Bangladesh, Indonesia, Vietnam, Thailand, Myanmar
• Climate requirement: Warm and humid; 20--35 degrees C; 100+ cm rainfall or irrigation
• Asian dominance: Over 90% of world rice is produced and consumed in Asia

Maize (Corn):

• Corn Belt (USA): Iowa, Illinois, Indiana, Nebraska -- world's largest corn-producing region
• Other major producers: China, Brazil, Argentina, India, Mexico
• Uses: Animal feed (largest share), ethanol, human food, industrial starch

1.3 Key Agricultural Revolutions

Part II -- World Industrial Regions

2.1 Major Industrial Regions

2.2 Factors of Industrial Location

2.3 Global Supply Chains

Modern manufacturing is characterised by fragmented global supply chains:

• Design in developed countries (Apple in Cupertino)
• Component manufacturing across multiple countries (semiconductors from Taiwan, displays from South Korea)
• Assembly in low-cost locations (Foxconn factories in China, Vietnam)
• Distribution through global logistics networks

The COVID-19 pandemic (2020--21) and geopolitical tensions (US-China trade war, Russia-Ukraine conflict) have triggered a rethinking of global supply chains, leading to trends like "nearshoring," "friendshoring," and "China+1" diversification strategies.

Part III -- Global Trade Routes and Chokepoints

3.1 Major Maritime Trade Routes

3.2 Strategic Chokepoints

Chokepoints are narrow passages along maritime routes where disruption can severely impact global trade:

3.3 Economic Corridors

Part IV -- World Urbanisation

4.1 Global Urbanisation Trends

4.2 World's Largest Urban Agglomerations (UN WUP 2025 Revision)

4.3 Patterns of Urbanisation by Region

4.4 Urban Challenges

Part V -- Economic Groupings

5.1 Major Economic Groupings

5.2 Emerging Economic Concepts

Part VI -- Resource Distribution

6.1 Energy Resources

6.2 Mineral Resources

6.3 Critical Minerals and Geopolitics

The transition to clean energy has made critical minerals (lithium, cobalt, nickel, rare earths) strategically important. China dominates processing of many critical minerals, creating supply chain vulnerabilities for the West. This has prompted:

• USA's Inflation Reduction Act (2022) incentives for domestic mineral processing
• EU's Critical Raw Materials Act (2023)
• India's Critical Mineral Mission
• The Minerals Security Partnership (MSP) led by the USA with 14 partner countries

Key Terms and Vocabulary

Part VII -- Global Fisheries and Aquaculture

7.1 Major Fishing Grounds

7.2 Aquaculture

Global aquaculture production has surpassed wild capture fishing. China alone accounts for over 60% of world aquaculture output. India is the second-largest aquaculture producer, with shrimp farming concentrated along Andhra Pradesh, West Bengal, and Gujarat coasts.

Part VIII -- Global Tourism Geography

8.1 Major Tourism Regions

Tourism contributes approximately 10% of global GDP and employs roughly 1 in 10 workers worldwide. France remains the most visited country by international tourist arrivals, followed by Spain and the United States.

Recent Developments (2024–2026)

Global Supply Chain Realignment — China+1 and India's Rise

The accelerating China+1 manufacturing strategy — where multinational companies diversify supply chains away from excessive dependence on China — is reshaping world economic geography. India has emerged as a primary beneficiary, particularly in electronics (Apple's India production hit ₹1.5 lakh crore in FY 2024–25), pharmaceuticals, textiles, and auto components under PLI schemes. Vietnam, Mexico, and Indonesia are also gaining. The IMEC corridor and India's bilateral free trade agreements with UAE (CEPA, 2022), Australia (ECTA, 2022), and ongoing negotiations with the UK and EU reflect India's integration into global trade networks. India's merchandise exports grew to approximately $437 billion in FY 2024–25.

UPSC angle: China+1 strategy, India's manufacturing push (PLI, Make in India), global supply chain geography, and India's trade connectivity are high-priority GS3 and GS2 economic geography topics.

Global Tourism Recovery — Record 2024

Global international tourist arrivals reached approximately 1.4 billion in 2024 — recovering to and slightly exceeding 2019 (pre-COVID) levels for the first time. Europe (563 million arrivals) remains the most visited region. France, Spain, and the USA remain the top 3 destinations by arrival numbers. India received 9.95 million foreign tourists in 2024 (+4.5% growth), ranking in the top 20 globally. Asia-Pacific posted the strongest regional growth, with India, Thailand, and Japan as standout performers. The UNWTO estimates travel & tourism contributes ~10% of global GDP and supports ~330 million jobs (1 in 9 workers globally).

UPSC angle: Global tourism geography, India's tourism statistics, UNWTO, tourism's economic multiplier effect, and the geography of global megacities and tourist flows are relevant for GS1 and GS3.

Exam Strategy Tips

For Prelims: Memorise chokepoints, their locations, and strategic significance. Know the top producers of key crops, minerals, and energy resources. Megacity data and economic grouping membership are frequently tested.

For Mains GS-I: Frame answers around the relationship between physical geography and economic activity -- why certain regions became industrial hubs (resources, transport, labour). Use specific data on urbanisation and trade volumes.

For Essay: Global supply chain fragility; the new geopolitics of critical minerals; urbanisation as both opportunity and crisis.