Economic Geography
Spatial patterns of economic activities, production, and resource distribution.
Official Syllabus
NEP-2020 Syllabus
NoteCore I Paper VII — Economic Geography
**(4 Credit, Theory: 45hrs, Practical: 30hrs)*
**Unit I:* - Meaning and scope of economic geography; classification of economic activities - Factors affecting location of Economic Activity (agriculture, manufacturing, services) - Classification of world agricultural system of Whittlesey - Von Thunen theory of location of agricultural activity
**Unit II:* - Secondary Activities: Manufacturing (Cotton Textile, Iron and Steel, Petrochemical) - Major Industrial Regions of the world - Special Economic Zones and Technology Parks - Tertiary Activities: Transport (Land, Air, Water, Pipelines), Trade (National/International) - Weber and Smith’s Industrial location Theory
**Unit III:* - Resource: Concept, Classification, Functional Theory of Resources - Distribution, Utilization, Problems and Management of World’s Resources (Land, Water, Forest, Energy) - Mineral resources (Iron, Bauxite) - Resource Development Regions of India - Resource depletion, conservation and Sustainable use of resources
UGC NET Syllabus
TipUnit VI — Geography of Economic Activities and Regional Development
**I. Economic Geography* - Factors affecting spatial organisation of economic activities (primary, secondary, tertiary and quarternary) - Natural Resources (classification, distribution and associated problems), Natural Resources Management - World Energy Crises in Developed and Developing Countries
**II. Agricultural Geography* - Land capability classification and Land Use Planning - Cropping Pattern: Methods of delineating crop combination regions (Weaver, Doi and Rafiullah), Crop diversification - Von Thunen’s Model of Land Use Planning - Measurement and Determinants of Agricultural Productivity, Regional variations - Agricultural Systems of the World
**III. Industrial Geography* - Classification of Industries, Factors of Industrial Location - Theories of Industrial Location (A. Weber, E. M. Hoover, August Losch, A. Pred and D. M. Smith) - World Industrial Regions, Impact of Globalisation on manufacturing sector - Tourism Industry, ICT and Knowledge Production Industries
NET Economic Geography — Detailed Syllabus (Pulakesh Pradhan)
ImportantSyllabus Topics (10 Questions = 20 Marks)
- EG: Location of economic activities and spatial organisation; Classification of economies; Sectors of Economy; Natural resources (Renewable/Non-renewable)
- AG: Delimitation of agricultural region; Measurement of productivity/efficiency; Crop combinations/diversification; Van Thünen’s Model; Agricultural system of the world
- IG: Classification of industries; Weber’s and Lösch’s approaches; Resource-based and footloose industries
- TG: Models of transport; Accessibility and connectivity; Inter-regional and intra-regional comparative cost advantage
Important Topics Index (NET Notes)
TipHigh-Yield Topics
- Agricultural Productivity & Efficiency
- Crop Combination & Diversification
- Van Thünen Model & Whittlesey’s Regions
- Weber’s Theory & Lösch Theory
- Classification of Industries (Footloose)
- Models of Transport & Network Analysis
- Accessibility, Connectivity, Comparative Cost Advantage
- Inland / Water / Air Ways in India
- Sectors and Types of Economy
- Agro-Climatic Regions & Sustainable Development (Triple Bottom Line)
Welcome to the Economic Geography module of Geography OpenCourseWare.
Part A: Common Topics (NEP-2020 & UGC NET)
These topics are covered in both the NEP-2020 undergraduate syllabus and the UGC NET syllabus.
Classification of Economic Activities
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit I — Meaning and scope; classification of economic activities |
| UGC NET | Factors affecting spatial organisation of economic activities (primary, secondary, tertiary and quarternary) |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Meaning and Scope: Study of the spatial variation of human economic activities on the Earth’s surface — production, exchange, and consumption of wealth.
- Primary Activities: Harvesting or extracting natural resources directly from the Earth (agriculture, mining, forestry, fishing).
- Secondary Activities: Processing raw materials, manufacturing, and construction (adding value to primary products).
- Tertiary Activities: Provision of services (retail, banking, transport, education, healthcare).
- Quaternary Activities: Information processing and knowledge-based services (research, IT, financial planning).
- Quinary Activities: High-level decision-making roles (executives, government officials, research scientists).
- Mentifact: Refers to the abstract belief systems (ideas, values, beliefs) that pass over from generation to generation within a culture.
- Sectoral Shift: Transition of economies from primary to secondary to tertiary dominance as they develop (Clark-Fisher model).
Sectors of Economy — Detailed (NET Notes — Pulakesh Pradhan)
| Sector | Activities | Examples |
|---|---|---|
| Primary | Extraction of natural resources | Agriculture, mining, fishing, forestry |
| Secondary | Manufacturing / processing | Iron & steel, textiles, food processing |
| Tertiary | Services | Trade, transport, banking, education |
| Quaternary | Knowledge and information | IT, R&D, consulting |
| Quinary | Highest decision making | Top government, CEO level decisions |
Factors Affecting Location of Economic Activities
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit I — Factors affecting location of Economic Activity |
| UGC NET | Factors affecting spatial organisation of economic activities; Factors of Industrial Location |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Physical Factors: Climate, terrain, soil fertility, availability of water, raw materials, power/energy sources.
- Economic Factors: Transport and communication costs, market access, labour (cost, skill, availability), capital access, agglomeration economies.
- Political/Institutional Factors: Government policies, taxes, subsidies, environmental regulations, political stability, zoning laws.
- Social/Cultural Factors: Entrepreneurship, cultural preferences, behavioural factors in decision-making.
- Footloose Industries: Industries not strongly tied to specific raw materials or markets (e.g., software, light electronics) — located based on other factors like skilled labour or amenities.
Agricultural Systems of the World
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit I — Classification of world agricultural system of Whittlesey |
| UGC NET | Agricultural Systems of the World |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Origin and Dispersal of Agriculture: Carl O. Sauer contributed notably towards understanding the origin and dispersal of agriculture globally.
- Mixed Farming: Characterized by the practice of cultivation of crops and raising livestock simultaneously on the same farm.
- Whittlesey’s Classification (1936): Derwent Whittlesey was the first to identify the major agricultural regions of the world based on five specific criteria.
- 13 Agricultural Regions:
- Nomadic Herding
- Livestock Ranching
- Shifting Cultivation
- Rudimentary Sedentary Tillage
- Intensive Subsistence (rice dominant)
- Intensive Subsistence (without rice)
- Commercial Plantation
- Mediterranean Agriculture
- Commercial Grain Farming
- Commercial Livestock and Crop Farming (Mixed)
- Subsistence Crop and Livestock Farming
- Commercial Dairy Farming
- Specialized Horticulture
- Modern Changes: Impact of Green Revolution, globalization, corporate farming, contract farming.
Agricultural Geography — Whittlesey’s Classification (1936) (NET Notes)
Derwent Whittlesey (1936) — “Major Agricultural Regions of the Earth” (AAG) *“Physical environment sets the limit for production of crops and raising of livestock”
5-Fold Criteria
- Crops and livestock combination
- Methods and techniques used
- Intensiveness in application of inputs
- Livestock purpose — subsistence or commercial
- Ensemble of structures used to house farm buildings
13 Agricultural Types (Whittlesey)
1. Nomadic Herding: Extensive subsistence; milk from animals. Tribes: Fulani (W. Africa), Masai (E. Africa), Nuba (Ethiopia/Sudan), Tuareg (Sahara), Bedouins (Saudi Arabia).
2. Shifting Cultivation: Oldest form. Local Names: Jhum (NE India), Milpa (Central America), Ladang (Malaysia), Roca (Brazil), Podu (Odisha), Taungya (Myanmar), Chena (Sri Lanka).
3. Rudimentary Sedentary Tillage: Tropical lands; sedentary/semi-shifting to feed family.
4. Intensive Subsistence Tillage: Monsoon lands of Asia; monoculture dominated by wet paddy.
5. Subsistence Crop & Livestock: Produce for own consumption (wheat/barley); sold in local markets.
6. Mediterranean Agriculture: Stable collaboration between man and nature; borders of Mediterranean Sea.
7. Livestock Ranching: Commercial grazing in semi-arid/arid regions. Names: Llanos (Venezuela), Pampas (Argentina), Veldt (South Africa), Downs (Australia). Wheat is most important crop.
8. Extensive Commercial Grain Farming: Mechanised (240–1600 hectares).
9. Commercial Livestock & Crop Farming: NW Europe origins; pedigree cattle herds; corn/soybean.
10. Commercial Dairy Farming: Most advanced/efficient; ~90% of world milk production.
11. Specialised Horticulture: Truck farming (SE USA), Factory farming (W. Europe/N. America).
12. Collective Farming: Jointly owned/operated. Sovkhozes (Russia) = state owned.
13. Commercial Plantation Farming: Tropical/sub-tropical; large-scale centralised system (tea, coffee, rubber).
Von Thunen’s Model of Agricultural Location
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit I — Von Thunen theory of location of agricultural activity |
| UGC NET | Von Thunen’s Model of Land Use Planning |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Johann Heinrich von Thünen (1826): The Isolated State — first quantitative model of spatial economic organization.
- Assumptions: Isolated state, isotropic plain, single central market, uniform transport costs, profit-maximizing farmers.
- Concept: Location Rent / Economic Rent determines land use — it is the most important concept on which the model is based. Products with high transport costs or perishability are produced closest to the market.
- Concentric Rings:
- Dairying and market gardening (performed quite close to the market as they are perishable and have high value).
- Forestry/Firewood (heavy/bulky to transport).
- Intensive crop farming without fallow
- Crop farming with fallow and pasture
- Three-field system
- Livestock ranching (animals can walk to market)
- Relevance Today: Modified by modern transport (refrigeration, highways) and global markets, but core concept of distance decay remains valid.
Van Thünen’s Model — Detailed (NET Notes — Pulakesh Pradhan)
Johann Heinrich von Thünen (1826) — Der Isolierte Staat (The Isolated State)
- First model of agricultural land use
- Single central city surrounded by uniform plain with equal fertile soil
- Distance from market determines what is grown where
Concentric Zones (from city outward)
| Zone | Land Use | Reason |
|---|---|---|
| Zone 1 | Horticulture & Dairy | Highly perishable; must be close |
| Zone 2 | Forestry (firewood/timber) | Heavy; high transport cost |
| Zone 3 | Crop Farming (Intensive) | Labour intensive; moderate distance |
| Zone 4 | Crop Farming (Extensive) | Less intensive; farther from city |
| Zone 5 | Livestock Ranching | Extensive; least perishable |
| Zone 6 | Wilderness | No economic use |
Assumptions
- Uniform fertile soil and climate
- Single central market
- Uniform transport cost in all directions
- Isolated state (no external markets)
- Farmers seek maximum profit
Modifications
- Two cities → zones distort
- River → zones extend along navigable route
- Second smaller city → creates secondary pattern
Theories of Industrial Location
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit II — Weber and Smith’s Industrial location Theory |
| UGC NET | Theories of Industrial Location (A. Weber, E. M. Hoover, August Losch, A. Pred and D. M. Smith) |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Alfred Weber’s Least Cost Theory (1909): Location minimizes transport and labour costs. Weber used the Locational triangle (two raw materials, one market) to find the optimal point where Total transport cost is minimum.
- Material Index = Weight of localized raw materials / Weight of finished product. MI > 1 = material-oriented; MI < 1 = market-oriented.
- Isodapanes: Lines of equal total transport cost.
- August Lösch’s Profit Maximization Theory (1954): Location where profit is maximized (total revenue minus total cost). Spatial demand cone; hexagonal market areas.
- David Smith’s Spatial Margins of Profitability (1971): Incorporates spatial variations in both costs and revenues to find the area where profit is possible. Also known for the Area-cost curve approach.
- Edgar Hoover: Emphasized transport cost structure (terminal vs. line-haul costs) and the concept of Delivered prices.
- Allan Pred: Behavioural approach — bounded rationality, imperfect information in locational decision-making. His proposition suggests that the ‘Behavioral Approach’ strongly determines the location of an industry.
- Textile Industry Location: Transportation cost does not play a major role in the location of the textile industry because the weight of cotton is more or less equal to the weight of the finished product (i.e., cotton is a pure material or weight-neutral).
Weber’s Theory of Industrial Location — Detailed (NET Notes — Pulakesh Pradhan)
Alfred Weber (1909) — *Theory of the Location of Industries
- Location of industry determined by **minimum transport cost*
- Three factors:
- Transport costs (primary factor)
- Labour costs (secondary factor)
- Agglomeration/Deglomeration (tertiary factor)
Weber’s Material Index (MI)
**MI = Weight of localised materials / Weight of finished product*
- MI > 1 → industry locates near raw material (material oriented)
- MI < 1 → industry locates near market (market oriented)
- MI = 1 → industry locates anywhere (footloose)
Isodapane
- Line joining points of equal transport cost around the least cost location
- Critical Isodapane — isodapane where saving in labour = extra transport cost
Lösch’s Theory (NET Notes)
- August Lösch (1954) — *“The Economics of Location”
- Maximum profit orientation (unlike Weber’s minimum cost)
- Hexagonal market areas for optimal spatial distribution
- Landscape of hexagonal nets = Löschian Landscape
Manufacturing Industries
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit II — Manufacturing (Cotton Textile, Iron and Steel, Petrochemical) |
| UGC NET | Classification of Industries; World Industrial Regions |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Classification of Industries: By size (cottage, small-scale, large-scale), raw material (agro-based, mineral-based), output (basic/heavy, consumer/light), ownership (public, private, joint).
- Iron and Steel Industry: Basic/key industry. Location historically tied to coal (Ruhr, Appalachians), later to iron ore, and currently shifting to coastal locations or markets (mini-steel plants using scrap).
- Textile Industry: Historically labour-intensive, raw material oriented, but highly mobile today due to cheap labour search (shift from developed to developing global South).
- Petrochemical Industry: Market or port-oriented; forms base for plastics, fertilizers, synthetic fibres.
- World Industrial Regions:
- East-North America: Great Lakes, Boston
- Western and Central Europe: Ruhr, Paris
- Eastern Europe: Volga-Ural, Ukraine
- Eastern Asia: Tokyo, Yokohama, coastal China, South Korea
- Knowledge Industry: A term introduced by Fritz Machlup to describe industries based heavily on knowledge and information.
Transport and Trade
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit II — Transport (Land, Air, Water, Pipelines), Trade |
| UGC NET | Factors affecting spatial organisation (tertiary) |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Modes of Transport:
- Roads: Door-to-door, best for short distances.
- Railways: Heavy/bulky goods over long distances inland.
- Waterways: Cheapest mode for bulky goods over long distances; major ocean routes (North Atlantic, Suez, Panama).
- Airways: Fastest, highest cost, best for low-volume/high-value/perishable goods.
- Pipelines: Continuous flow of liquids/gases (oil, natural gas, water).
- Network Analysis:
- Gamma Index (γ): Relates to the connectivity of a network (ratio between the observed number of edges and the maximum possible number of edges/vertices).
- Access vs Accessibility: In the context of transportation, ‘Access is not accessibility’. While access refers to the physical presence of a transport link and is often uniform, accessibility (the ease of reaching a destination) is not uniform.
- Trade: Exchange of goods/services. Based on comparative advantage (Ricardo).
- **Spatial Interaction Models:*
- Edward Ullman: Three main principles of spatial interaction are complementarity, transferability, and intervening opportunities. The concept of Intervening Opportunity suggests that there is no better alternative destination for an interaction.
- Destination Choice Models: These are an extension of the gravity model.
- Transport Friction: The Beta (\(\beta\)) index is often used as a measure of transport friction.
- M. E. Hurst: Emphasized the role of transportation infrastructure in shaping urban development patterns.
- W. J. Reilly: Law of Retail Gravitation
- G. K. Zipf: Least Effort Principle
- S. A. Stouffer: Intervening Opportunities Model
- T. Hägerstrand: Spatial Interaction Model
- Global Trade Patterns: Shift from North-North dominance to increasing South-South and intra-regional trade. Role of WTO, regional trade blocs (EU, NAFTA/USMCA, ASEAN, MERCOSUR).
- WTO Equal Treatment Rule: Ensures the same trade benefits for all members.
- Globalisation Impacts: Negative impacts can include the exploitation of labour due to low wages in developing nations.
Accessibility and Connectivity (NET Notes — Pulakesh Pradhan)
- Accessibility — ease with which any place can be reached from other places
- Connectivity — number of direct links between nodes in a network
Network Analysis Measures
| Measure | Formula | Description |
|---|---|---|
| Beta Index (β) | β = e/v | Edges (e) / Vertices (v); degree of connectivity |
| Gamma Index (γ) | γ = e / 3(v−2) | Actual edges / Maximum possible edges |
| Alpha Index (α) | α = (e−v+1) / (2v−5) | Ratio of circuits to maximum circuits |
| Eta Index (η) | η = L/e | Total network length (L) / number of edges |
| Cyclomatic Number (μ) | μ = e−v+G | Number of independent circuits |
| Pi Index (π) | π = L/d | Total length / diameter of network |
- Detour Index — degree to which actual route exceeds straight-line distance
Comparative Cost Advantage (NET Notes)
David Ricardo — Theory of **Comparative Advantage A country should specialise in producing goods in which it has lower relative* cost
Heckscher–Ohlin Theory
- Countries export goods that use their abundant factors intensively
- Countries import goods that use their scarce factors intensively
Inter-Regional vs. Intra-Regional Trade
| Type | Description |
|---|---|
| Inter-regional | Trade between different regions / countries |
| Intra-regional | Trade within a region or country |
Natural Resources: Concept and Classification
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit III — Resource: Concept, Classification, Functional Theory |
| UGC NET | Natural Resources (classification, distribution and associated problems) |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Zimmermann’s Functional Theory (1933): “Resources are not, they become.” A neutral stuff becomes a resource when human knowledge and technology find a use for it and it is economically viable.
- Classification:
- Renewability: Renewable (flow/fund - water, solar, forest) vs. Non-renewable (stock - minerals, fossil fuels).
- Origin: Biotic (forests, wildlife, fossil fuels) vs. Abiotic (land, water, minerals).
- Development Stage: Potential, actual/developed, reserve, stock.
- Distribution: Ubiquitous (air) vs. Localized (minerals).
- Resource Problems: Uneven distribution leading to geopolitical conflicts, overexploitation, environmental degradation, tragedy of the commons.
Energy Resources and Crisis
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit III — Energy (Coal, petroleum and non-conventional) |
| UGC NET | World Energy Crises in Developed and Developing Countries |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Conventional/Non-Renewable Energy:
- Coal: Four types (anthracite, bituminous, lignite, peat). Major producers: China, USA, India, Australia.
- Petroleum: Middle East, USA, Russia. Geopolitical significance (OPEC). In 1973, oil prices rose from $1.5 to $7.0 per barrel. The second oil crisis occurred in 1979 (linked to the Iranian Revolution).
- Natural Gas: Cleanest fossil fuel.
- Non-Conventional/Renewable Energy: Solar, wind, hydroelectric, geothermal, biomass, tidal. Crucial for sustainable development.
- World Energy Crisis: Situation where energy demand outweighs supply or is threatened by geopolitical instability, infrastructure failures, or environmental constraints. The best strategy for energy crisis management is the promotion of sustainable production and consumption of energy.
- Developed vs. Developing Contexts: Developed nations focus on transition to renewables and energy security; developing nations face challenges of energy access/poverty while managing rapid demand growth. Limited access to technology and economic activities directly limits the per capita consumption of electricity in developing countries.
Part B: NEP-2020 Specific Topics
These topics are part of the NEP-2020 undergraduate programme only.
Special Economic Zones and Technology Parks
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit II — Special Economic Zones and Technology Parks |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Special Economic Zones (SEZs): Designated geographical areas within a country with liberal economic laws (tax exemptions, relaxed labour laws, single-window clearance) intended to boost foreign direct investment (FDI), exports, and employment.
- Example: Shenzhen (China) as a pioneer; Indian SEZ Act 2005.
- Technology Parks / Technopoles: Centers of high-tech manufacturing and information-based quaternary industries.
- Agglomeration economies, proximity to major universities/research centers, high-quality amenities to attract skilled workers.
- Examples: Silicon Valley (USA), Bengaluru IT corridor (India), Cambridge Science Park (UK).
- Impacts: Regional development engines, but can create enclaves, widen regional disparities, and cause land acquisition conflicts.
Resource Management and Conservation
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| NEP-2020 | Unit III — Resource Development Regions of India; Resource depletion, conservation and Sustainable use |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Resource Depletion: Rapid exhaustion of non-renewable resources (Hubbert peak theory) and degradation of renewables (overfishing, deforestation, groundwater depletion).
- Conservation: Rational and efficient use of resources to ensure availability for future generations without ecological damage.
- Sustainable Development: Meeting present needs without compromising future generations (Brundtland Report 1987).
- Strategies: 3Rs (Reduce, Reuse, Recycle), substitution (finding alternatives), improving technological efficiency, afforestation, watershed management.
- Resource Development Regions of India: Delineated based on homogeneity of physical and economic resources (e.g., Damodar Valley, Western Ghats) for targeted planning.
Sustainable Development (NET Notes — Pulakesh Pradhan)
Brundtland Commission (1987): *“Development that meets the needs of the present without compromising the ability of future generations to meet their own needs”
Triple Bottom Line (3 Ps)
- People (Social sustainability)
- Planet (Environmental sustainability)
- Profit (Economic sustainability)
Renewable Resources
- Can be replenished naturally
- Examples: Solar energy, wind, water (hydro), biomass, tidal energy
Non-Renewable Resources
- Finite; cannot be replenished within human timescales
- Examples: Coal, petroleum, natural gas, minerals, nuclear fuels
Part C: UGC NET Specific Topics
These topics are part of the UGC NET syllabus only.
Agricultural Measurement and Modeling Methods
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| UGC NET | Cropping Pattern: Methods of delineating crop combination regions (Weaver, Doi and Rafiullah), Crop diversification |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Crop Combination Regions: Area where two or more crops are grown in association.
- Weaver’s Method (1954): Standard deviation approach comparing actual crop percentages with a theoretical distribution (monoculture 100%, 2-crop 50-50%, etc.). Minimum variance determines the combination.
- Doi’s Method (1959): Modified Weaver’s formula using \(\Sigma d^2\) without dividing by \(n\); uses a critical value table.
- Rafiullah’s Method (1956): Maximum positive deviation method (\(\Sigma D^2 / N^2\)) — reduces the number of crops in the final combination compared to Weaver.
- Crop Diversification: Growing a variety of crops rather than monoculture — insurance against weather/market failure. Measured by Bhatia’s Crop Diversification Index (\(D = \frac{\sum P_{i}}{n}\) where \(P_{i}\) is the percentage of harvested area under the \(i\)-th crop and \(n\) is the number of crops).
- Agricultural Productivity: The yield of crops per unit of area (output per unit of input like land, labour, capital). Measured by Kendall’s Ranking Coefficient, Enyedi’s Index, Bhatia’s Method.
- Silviculture: Refers to the growing of fuel wood and crops together on the same piece of land.
Agricultural Productivity (NET Notes — Pulakesh Pradhan)
Agricultural Productivity = total agricultural output per unit of cultivated area per agricultural worker or per unit of input (in monetary values)
Types of Productivity: Land Productivity — More efficient use of factors of production: environment, arable land, labour, capital.
Three Main Indicators: 1. Yield, 2. Grain equivalents, 3. Cropping system
Measurement Techniques (Key Scholars)
| Scholar | Year | Method |
|---|---|---|
| Khusno | 1964 | Paid out cost in relation to output as a measure of farm efficiency |
| Buck | 1967 | Production in terms of grain equivalents per head of population |
| E. de Vries | — | All output expressed in terms of mid milled-rice equivalents |
| Clark & Haswell | — | Wheat equivalents per person |
| Kendall | 1939 | Output per unit area (yield per hectare) |
| Sapre & Deshpande | 1964 | Weightage to ranking order of output per unit area |
| Bhatia | 1967 | Iya = Yc/Yr × 100 |
| L.D. Stamp | 1967 | Carrying capacity of land; ‘standard nutrition unit’ and ‘caloric value’ |
| Enyedi & Shafi | 1964 | Productivity Index = (Y/Yn) ÷ (T/Tn) |
| Jasbir Singh | 1972/76 | Carrying capacity modification; Crop yield/concentration indices |
Cropping Intensity
**Cropping Intensity = (Total Cropped Area / Net Sown Area) × 100* Example: Rabi = 700 ha, Kharif = 500 ha, Net Sown Area = 1000 ha → (1200 / 1000) × 100 = **120%*
Crop Combination — Detailed Methods (NET Notes)
Number and diversity of crops grown in a particular area during a specific time interval. Weaver (1954) noted it helps in composite realities and regional planning.
Method 1: Arbitrary Choice Method
- First 2–3 crops are shown and remaining excluded (not sensitive).
Method 2: Statistical Method — J.C. Weaver (1954)
- Studied complex crop combinations in Middle West (USA) (1081 counties). > **Variance = Σd² / N; Standard Deviation = √(Σd²/n)* > (d = difference between actual and percentage crop area; n = number of crops)
- Drawbacks: Crops covering insignificant area may be of great regional importance; unwieldy for areas of high crop diversification.
Modifications of Weaver’s Method
| Scholar | Year | Modification |
|---|---|---|
| Doi | 1959 | Substituted Weaver’s variance (Σd²/n) with sum of square deviation (Σd²) |
| Peter Scott | 1963 | Animals are as important as crops in determining crop combination (Tasmania) |
| Thomas | — | Modified variance to minimum variance / least standard deviation |
| J.T. Coppock | 1964 | Modified Scott’s method; converted all animals to common unit based on food quality |
Contemporary Trends in Industrial Geography
Warning📘 Syllabus Coverage
| Syllabus | Topic Details |
|---|---|
| UGC NET | Impact of Globalisation on manufacturing sector; Tourism Industry, ICT and Knowledge Production |
Get the Presentation ↗ | Watch the Video ↗
NoteKey Concepts
- Impact of Globalisation: Deindustrialization in advanced economies (Rust Belt), relocation of manufacturing to NICs (Newly Industrialized Countries) seeking cheap labour and lax environmental rules. Emergence of Global Value Chains (GVCs).
- Tourism Industry: Largest single employer globally. Forms: ecotourism, heritage, medical, adventure. Impacts on local economies and environments.
- ICT and Knowledge Production: The “New Economy”. Highly footloose, cluster in technopoles. Teleworking and the “death of distance”.
- Fordism: Used to describe both a specific manufacturing technique (standardized mass production) and the broader societal condition (mass consumption and social welfare) associated with it.
- Flexible Specialization (Post-Fordism): Shift from mass production (Fordism) to batch production, just-in-time inventory, and product customization. Essential characteristics include reliance on e-transaction of capital, market-linked production, and share markets (unlike Fordism, it does not rely on heavy industries).
- Growth Centre Programme: Introduced in India in 1988 to promote industrialisation of backward areas.
- Agglomeration vs. Dispersion: Centripetal forces (knowledge spillovers, input sharing) vs. Centrifugal forces (congestion, high rent).
Quick Reference
Economic Geography Quick Reference
Theories and Models
| Theory / Concept | Propounder | Details |
|---|---|---|
| Industrial Location Theory | Alfred Weber | Least Cost Theory; Material Index; Isodapanes |
| Profit Maximization Theory | August Lösch | Hexagonal market areas; Demand cone |
| Spatial Margin of Profitability | D.M. Smith | Spatial variations in cost and revenue |
| Central Place Theory | Walter Christaller | Threshold, Range; K=3 (Market), K=4 (Transport), K=7 (Admin) |
| Growth Pole Theory | François Perroux | Propulsive industries; Polarization effects |
| Cumulative Causation Theory | Gunnar Myrdal | Backwash and Spread effects |
| Core-Periphery Model | John Friedmann | Stages of spatial organization |
| Rostow’s Stages of Growth | W.W. Rostow | Traditional society, Pre-conditions, Take-off, Drive to maturity, High mass consumption |
Key Concepts
| Concept | Propounder / Description |
|---|---|
| Resource | “Resources are not, they become” (E.W. Zimmermann) |
| Quaternary & Quinary Activities | High-level knowledge services and decision making |
| Footloose Industries | Industries not tied to raw material sources (e.g., Electronics) |
| Agglomeration Economies | Benefits from spatial clustering of firms |
| Isotims & Isodapanes | Weber: Lines of equal transport cost (Isotim); Lines of equal total transport cost (Isodapane) |
Notes compiled by Geography Team