Q.(a) Define 'Worker Population Ratio' and mention its utility.
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Let’s start with something you already know from everyday life. Think about the market for mangoes. If the price of mangoes rises, sellers bring more mangoes to the market, and buyers buy fewer. The market clears — price adjusts, quantity adjusts, and everyone is happy. Now think about the market for labour. You are a worker. If your boss says, “I’ll pay you half your current salary,” would you work twice as many hours? Probably not. You might quit, or you might work the same hours because you still need to pay rent. The labour market does not behave like the mango market. That is the first clue: labour is not a commodity like fruit or steel.
What is Labour Market Peculiarity?
The term “labour market peculiarity” refers to the unique features that make the market for labour fundamentally different from markets for goods and services. These peculiarities are not minor quirks — they are structural differences that shape how wages are determined, how employment rises and falls, and why government intervention (like minimum wage laws or labour unions) exists.
The NCERT Class-12 Economics textbook (Macroeconomics, Chapter 7: “Employment: Growth, Informalisation and Other Issues”) does not give a single formula for this concept. It is a qualitative, institutional idea. So we will not invent a formula. Instead, we will understand the four main peculiarities that NCERT emphasises.
1. Labour is inseparable from the labourer
When you buy a mango, the mango and the seller are separate. You take the mango home; the seller stays in the shop. But when you hire a worker, you are hiring the person — their time, effort, emotions, health, and dignity. You cannot separate the labour from the human being. This means:
- A worker cannot be “stored” like inventory. If a factory shuts down for a month, the worker’s time is lost forever.
- Working conditions matter directly to the worker’s well-being. A bad environment affects not just output but the person’s life.
- Labour is not homogeneous. Each worker has different skills, attitudes, and productivity. You cannot replace one worker with another the way you replace one kilogram of rice with another.
Because labour is inseparable from the labourer, the human element — motivation, health, safety, dignity — becomes a central concern in labour markets. This is why labour laws exist.
2. Labour is perishable
A worker’s time today cannot be saved and used tomorrow. If a worker is idle today, that day’s labour is lost forever. You cannot “inventory” labour. This gives employers a bargaining advantage: they know that a worker who does not get hired today loses that day’s income permanently. Workers, especially those with no savings, are forced to accept lower wages or worse conditions rather than remain unemployed.
This perishability is the root of exploitation in labour markets. It is also why trade unions and minimum wage laws exist — to protect workers from being forced into a race to the bottom.
3. Labour supply is not perfectly flexible
In the mango market, if price rises, sellers can quickly bring more mangoes from the farm. In the labour market, you cannot instantly produce more skilled workers. A doctor takes years to train. A carpenter takes months to learn. Even unskilled labour is constrained by geography — a worker in Bihar cannot instantly move to Mumbai for a job.
Moreover, workers have reservation wages: the minimum wage at which they are willing to work. If the offered wage is below that, they will choose to remain unemployed rather than work. This is not irrational — it reflects the cost of commuting, the loss of leisure, or the social stigma of a low-status job.
The NCERT textbook discusses the concept of “disguised unemployment” (especially in agriculture) as a direct consequence of this peculiarity: many workers are employed but their marginal productivity is zero. They cannot be easily moved to other sectors because of skill mismatches and immobility.
4. Labour market is not perfectly competitive
In a perfectly competitive market, many buyers and many sellers exist, and no single agent can influence price. In the labour market, this is rarely true.
- Employers often have market power (monopsony). A single large factory in a small town is the only employer. Workers have no alternative, so the employer can set wages below the competitive level.
- Workers organise into unions to counter this power. Collective bargaining replaces individual wage negotiation.
- Government sets minimum wages, regulates working hours, and provides social security. These interventions are not “market distortions” — they are responses to the peculiarities of labour. …
Part (b)Concept understanding — Scope Of Economics
The Scope of Economics: What Does Economics Actually Study?
Think about your day so far. You woke up, had breakfast, came to school. Every single thing you used — the bed you slept on, the food you ate, the bus or bicycle you took — was produced by someone, somewhere, using limited resources. And you made choices: Which dish to eat? Which route to take? That's the seed of economics.
Economics is not just about money, stock markets, or government budgets. It is the study of choice under scarcity. Scarcity means our wants are unlimited, but the resources to satisfy them — time, land, labour, capital — are limited. So every society must answer three fundamental questions:
- What to produce? (Should we make more phones or more food?)
- How to produce? (Should we use more machines or more workers?)
- For whom to produce? (Who gets to consume what?)
The scope of economics is the answer to: What all does this subject cover? It is the boundary of the field — the topics, methods, and questions that economics deals with.
The Two Broad Branches of Economics
Economics is divided into two main parts, and understanding this division is the first step in grasping its scope.
Microeconomics vs Macroeconomics
Microeconomics (from the Greek mikros = small) studies individual economic units — a single consumer, a single firm, a single market. It asks: How does a household decide what to buy? How does a firm decide how much to produce? How is the price of a particular good determined?
Macroeconomics (from makros = large) studies the economy as a whole. It looks at aggregates — total output, total employment, the general price level, national income. It asks: Why does the whole economy sometimes slow down? What causes inflation? How does the government manage the overall level of economic activity?
The NCERT Class 11 textbook (Introductory Microeconomics) and Class 12 textbook (Introductory Macroeconomics) are built exactly on this division.
What Falls Within the Scope? (The Core Topics)
Here is what the NCERT syllabus actually covers under the scope of economics:
| Microeconomics (Class 11) | Macroeconomics (Class 12) |
|---|---|
| Consumer behaviour (utility, demand) | National income accounting |
| Producer behaviour (cost, supply) | Money and banking |
| Market forms (perfect competition, monopoly) | Determination of income and employment |
| Price determination under different markets | Government budget and the economy |
| Simple applications (price controls, taxes) | Balance of payments and foreign exchange |
The scope also includes normative and positive economics. Positive economics deals with "what is" — facts and cause-effect relationships (e.g., "A rise in price reduces demand"). Normative economics deals with "what ought to be" — value judgments and policy recommendations (e.g., "The government should provide free education"). Both are part of the scope, but positive economics forms the core of your syllabus.
Why Does the Scope Matter?
Knowing the scope tells you what tools you will learn and what questions you can answer.
- Microeconomics gives you the tools to understand individual markets — why petrol prices rise, why a movie ticket costs more in a multiplex than in a single-screen theatre, why farmers sometimes destroy crops. …
Part (a)
Worker Population Ratio (WPR) is the number of workers (persons engaged in economic activity) per 100 persons in the total population.
WPR=Total populationTotal number of workers×100 …
Part (a): WPR = (workers ÷ total population) × 100; it indicates the level of employment in the economy. Part (b): Two harmful effects of chemical fertilizers — loss of soil fertility and contamination of water/food.
Part (a)
The Worker Population Ratio (WPR) is a labour-force indicator defined as the number of workers per 100 persons in the total population:
WPR=Total populationTotal number of workers×100
A "worker" here is any person engaged in an economic (productive) activity — for wages/salary, for profit, or as an unpaid family worker.
Utility of WPR:
- It measures the extent of employment in a country — what share of the population is actually working and contributing to output.
- It helps gauge the utilisation of human resources; a higher WPR means a larger part of the population is productively engaged. …
Showing the 12 most recent of 84 on this concept.
- CBSE 2026Set MARCH1 markMCQQ.Which among the following is a characteristic of Centrally planned economy?(a) Private ownership(b) Profit motive(c) Central problems solved by price mechanism(d) Central problems solved by planning mechanism
›Reveal solutionSolution
A centrally planned economy answers what, how and for whom to produce through central planning by the state, so the correct choice is (d).
…
- CBSE 2026Set MARCH1 markMCQQ.The founding father of modern economics –(a) Alfred Marshall(b) J.M. Keynes(c) Paul A. Samuelson(d) Adam Smith
›Reveal solutionSolution
Adam Smith is called the father of modern economics, so the answer is (d).
…
- CBSE 2026Set ANNUAL1 markMCQQ.Which of the following is the study area of macro economics? A) Aggregate price level B) Determining the quantity of goods C) Determining the price of goods D) None of the above
›Reveal solutionSolution
Macroeconomics studies economy-wide aggregates like the aggregate price level, so the answer is A.
Macroeconomics deals with the behaviour of the economy as a whole — aggregate output, aggregate employment and the aggregate (general) price level. Determining the price of an individual good or the quantity of a single commodity belongs to microeconomi …
- CBSE 2026Set ANNUAL1 markMCQQ.In a centrally planned economy, all economic decisions are made by A) Government B) Market C) Producer D) Consumer
›Reveal solutionSolution
In a centrally planned economy the government makes all economic decisions, so the answer is A.
Economies are broadly organised as market economies (decisions made through market forces of demand and supply) or centrally planned economies. In a centrally planned (command) economy, a central authority — the government — decides what to produce, how to produce an …
- CBSE 2026Set ANNUAL1 markQ.Explain the meaning of economic agent.
›Reveal solutionSolution
Economic agents are the decision-makers of an economy — consumers, producers, firms and the government.
In economics, an economic agent (or economic unit) is any individual or institution that takes economic decisions and carries out economic activities. Examples include consumers deciding what to buy, producers and firms deciding what and how much to produce, and the government deciding on taxes and spending. The whole study of economics is about the decisions these agents make and how those decisions interact in markets. This is a basic defini …
- CBSE 2026Set ANNUAL1 markMCQQ.How does Robbins define Economics?(a) Science of market(b) Science of business(c) Science of life(d) Science of scarcity
›Reveal solutionSolution
Robbins defined economics as a science of scarcity (and choice), so the answer is (d).
Lionel Robbins defined economics as 'the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses'. Because human wants are unlimited while the means (resources) to satisfy them are limited and have alternative uses, economics becomes the study of how people m …
- CBSE 2026Set ANNUAL1 markMCQQ.Inventory is a .......... concept whereas the change in inventory is a .......... concept.(a) stock, flow(b) flow, stock(c) stock, stock(d) flow, flow
›Reveal solutionSolution
Inventory is a stock concept and the change in inventory is a flow concept, so the answer is (a).
Inventory (the stock of unsold goods or raw materials a firm holds) is measured at a particular point of time, so it is a stock. The change in inventory over a period of time (for example, during a year) is measured over an interval and therefore is a flow. Thus inv …
- CBSE 2026Set ANNUAL1 markQ.Write the answer in one sentence: At which point the determination of wage occurs in labour market?
›Reveal solutionSolution
Wage is determined where demand for labour = supply of labour.
In a competitive labour market, the wage rate is determined at the equilibrium point where the demand for labour equals the supply of labour. The demand for labour comes from employers (based on the marginal revenue product of labour) and the supply from workers. At the equilibrium wage, the quantity of labour demanded equals the quantity supplied; above it t …
- CBSE 2026Set ANNUAL1 markMCQQ.Among the competing usage of resources, the main cause of the “Problem of Choice” in every economy is:(a) Abundance of resources(b) Scarcity of resources(c) Misuses of resources(d) No uses of resources
›Reveal solutionSolution
The problem of choice arises from scarcity of resources — option (b).
Since resources are scarce (limited) and have alternative (competing) uses while human wants are unlimited, an economy cannot satisfy all wants at once and must choose how to allocate its resources. Thus scarcity of re …
- CBSE 2026Set ANNUAL1 markMCQQ.Which of the following is studied under micro economics?(a) Individual family(b) Individual firm(c) Individual industry(d) All of these(a) Individual family(b) Individual firm(c) Individual industry(d) All of these
›Reveal solutionSolution
Microeconomics studies individual units — families, firms, and industries alike.
Microeconomics focuses on the economic decisions and behaviour of individual, specific units within the economy: an individual family/household (how it allocates its budget among goods, theory of consumer behaviour), an individual firm (how it decides output and price, theory of the firm), and an individual industry (how price and quantity are determined in a specific market, e.g., the sugar industry or the steel industry). All three are 'micro' in the sense of being individual, specific unit …
- CBSE 2026Set ANNUAL1 markMCQQ.Macroeconomics studies : (A) the behaviour of individual prices (B) the behaviour of individual quantity of a particular commodity (C) the behaviour of individual income (D) the behaviour of large aggregates such as the general price level of the economy
›Reveal solutionSolution
Macroeconomics studies economy-wide aggregates, not individual prices/quantities/incomes.
Economics is traditionally divided into microeconomics and macroeconomics. Microeconomics studies the behaviour of individual economic units -- a single consumer's choices, a single firm's output decision, the price and quantity of one particular commodity, or one person's income. Macroeconomics, by contrast, studies the economy in aggregate: total output (national income), the general (average) price level of all goods and services, aggregate employment and unemployment, the total money supply, and the overall balance of payments. Options (A), (B) and (C) all describe the behaviour of a single/individual …
- CBSE 2025Set MARCH1 markQ.Fill in the blank by choosing correct answer from the bracket (Financial, Government, RBI, Perfect competition, Product, Private): In a centrally planned economy, all important decisions are taken by __________.
›Reveal solutionSolution
The blank is filled by 'Government'.
Economies are broadly of three types: market economy, centrally planned economy and mixed economy. In a centrally planned economy, the central authority (the Government/State) plans and decides the central problems of the economy — what and how much to produce, how to p …
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