01 · Explore
Classification by Nature of Activity
Economic activities are grouped into three main sectors based on the nature of the work performed: primary, secondary, and tertiary.
The primary sector involves activities undertaken by directly using natural resources. Examples include agriculture, dairy, fishing, and forestry. It is called 'primary' because it forms the base for all other products. Since most natural products we get are from agriculture and related activities, it is also known as the agriculture and related sector.
The secondary sector covers activities in which natural products are changed into other forms through manufacturing. This is the next step after primary production. The product is not produced by nature but has to be made in a factory, workshop, or at home. For example, using cotton fibre to spin yarn or using sugarcane to make sugar. It is often called the industrial sector.
The tertiary sector includes activities that help in the development of the primary and secondary sectors. These activities do not produce a good by themselves but provide aid or support for the production process. Examples include transport, storage, communication, banking, and trade. Since these activities generate services, this sector is also called the service sector.
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Why is the primary sector also called the 'agriculture and related sector'?
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02 · Explore
Interdependence of Economic Sectors
While economic activities are grouped into three categories, they are highly dependent on one another.
No sector operates in isolation. For instance, the secondary sector depends on the primary sector for raw materials; if farmers refuse to sell sugarcane, sugar mills must shut down. Conversely, the primary sector depends on the secondary sector for inputs like tractors, pumpsets, and fertilisers. If the prices of these industrial goods rise, the cost of cultivation increases for farmers.
The tertiary sector supports both. Industrial and agricultural goods need to be transported by trucks or trains and stored in godowns. Without these services, goods cannot reach the market. Similarly, people working in the industrial and service sectors need food produced by the primary sector. A strike by transporters would lead to food scarcity in urban areas and losses for rural farmers.
| Example | Interdependence Shown |
|---|---|
| Farmers buy tractors and pesticides | Primary sector depends on Secondary sector |
| Sugar mill buys sugarcane from farmers | Secondary sector depends on Primary sector |
| Trucks moving vegetables to cities | Primary sector depends on Tertiary sector |
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What would happen to a biscuit factory if the transport sector went on strike?
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03 · Explore
Measuring Economic Activity: GDP
To understand the size of an economy, we calculate the total value of goods and services produced rather than adding up their physical quantities.
Economists use the money value of goods and services to measure production. For example, if 10,000 kg of wheat is sold at Rs 20 per kg, the value is Rs 2,00,000. However, a crucial precaution is taken: only the value of 'final goods and services' is counted. Final goods are those that reach the consumer, like a packet of biscuits.
Intermediate goods, such as the wheat and flour used to make biscuits, are not counted separately. Their value is already included in the price of the final good. Counting them again would lead to 'double counting,' which artificially inflates the economic figures.
The value of final goods and services produced in each sector during a particular year provides the total production of that sector. The sum of production in the three sectors is called the Gross Domestic Product (GDP). In India, the task of measuring GDP is undertaken by a central government ministry in collaboration with state departments.
The chapter’s sector comparisons also use Gross Value Added (GVA), a related measure of sectors’ contributions with adjustments for taxes and subsidies. At this level, focus on comparing production with employment; GDP and GVA are not simply counts of how many people work.
The Logic of Final Goods
Value of Biscuits (Rs 80) = Value of Flour (Rs 25) + Value of Sugar/Oil + Manufacturing/Profit
The Rs 80 charged to the consumer for biscuits already accounts for the Rs 25 the baker paid for flour. If we added Rs 80 and Rs 25 together, we would be counting the flour twice.
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What is Gross Domestic Product (GDP)?
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04 · Explore
Historical Changes in Sectoral Importance
The relative importance of the three sectors has changed significantly over time as countries develop.
In the initial stages of development, the primary sector was the most important. As farming methods improved and agriculture prospered, it produced surplus food. This allowed people to take up other activities like trade and crafts. Over a long period (more than 100 years), new manufacturing methods were introduced, and factories expanded. The secondary sector gradually became the most important in terms of production and employment.
In the last 100 years, developed countries have seen a further shift from the secondary to the tertiary sector. The service sector has become the dominant sector for both total production and employment. In India, a similar shift in production has occurred, but the shift in employment has been much slower.
General Pattern of Sectoral Shift
- 1
Primary Dominance
Initial stage where agriculture is the main source of production and jobs.
- 2
Industrialisation
Secondary sector grows as factories emerge and people move from farms to workshops.
- 3
Service Era
Tertiary sector becomes dominant in production and employment in developed nations.
The typical progression of an economy from agricultural focus to industrial and finally service-based dominance.
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Which sector is currently the largest producing sector in India?
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05 · Explore
The Rise of the Service Sector in India
Between 1977-78 and 2017-18, the tertiary sector grew the most in India, becoming the largest producing sector.
Several factors explain this growth. First, the government must provide 'basic services' like hospitals, schools, police stations, and banking. Second, the development of agriculture and industry creates a demand for services like transport and trade. Third, as income levels rise, people demand luxury services like tourism, private schooling, and eating out.
Additionally, the last decade has seen the rapid expansion of new services based on information and communication technology (ICT). However, it is important to note that not all parts of the service sector are growing equally. While high-skilled professionals in IT and finance earn well, a large number of service workers, such as small shopkeepers and repair persons, barely manage to earn a living.
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State two reasons for the growth of the tertiary sector in India.
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