KSLU Solved Question Papers
Economic Theory and Public Finance
Previous Year Question Paper with Solution
B.A. LL.B. (Five Years) · Sem 3
2026 Jan (100 marks) Examination
munotes.in
Mumbai
B.A. LL.B. (Five Years) Sem 3 Economic Theory and Public Finance 2026 Jan (100 marks) Question Paper with Solutions
First published on munotes.in on 21 October 2026.
Published by munotes.in, Mumbai.
Model answers written and edited by the munotes.in editorial desk.
Passages from this volume may be quoted, in print, online or by an AI system, with credit: name munotes.in and link to this volume's page. The volume may not be reproduced as a whole. Full terms at munotes.in/content-license.
munotes.in is an independent study resource for students of Karnataka State Law University. It is not affiliated with Karnataka State Law University, and is not endorsed by it.
The University does not publish an official answer key for this paper. The answers in this volume are model answers, written to show how a full-mark answer is built. They are a study aid, not an authority on what an examiner marked.
The question paper reproduced here is the paper as set by Karnataka State Law University at the 2026 Jan (100 marks) examination.
Contents
The questions below are the paper as Karnataka State Law University set it at the 2026 Jan (100 marks) examination, in the order it was set.
MarksPage
The Paper as Set
The questions in this volume are the questions asked at the 2026 Jan (100 marks) examination, reproduced as Karnataka State Law University set them, in the order it set them. Long reading passages are shortened to their first and last lines and our summary; the original paper prints them in full. Only the answers are ours. See the original question paper.
Duration 3 hours · Total marks 100 · 13 questions answered
How to use this volume
Solve the paper first, under exam conditions and against the clock. Then read the answers here and mark your own. Reading a solution before attempting the question feels productive and teaches very little, because recognising an answer is not the same as being able to write one.
Q1Explain the various methods of estimating national income.[16]
Answer
For full marks, cover: what national income is, with the definitions of Marshall, Pigou and Fisher and the modern definition; why there are three methods (the circular flow); the product or value added method, its steps and the rule against double counting; the income method and what it includes and leaves out; the expenditure method and its formula; one worked example in which all three give the same answer; which method India uses for which sector, with the new 2022-23 base; the precautions and limits of each method; and a conclusion.
1. What national income means
National income is the total money value of all final goods and services produced by the residents of a country in one year. Each item is counted once, and depreciation is deducted. Strictly, it is the net national product at factor cost. In daily use people often say "national income" when they mean GDP, but an exam answer should define it correctly.
Economists have defined it in three classic ways.
- Alfred Marshall (Principles of Economics, 8th edition, 1920) wrote that the labour and capital of a country, acting on its natural resources, produce each year "a certain net aggregate of commodities, material and immaterial, including services of all kinds". He called this "the true net annual income, or revenue, of the country; or, the national dividend". He added that net income from foreign investments "must be added in".
- A. C. Pigou (The Economics of Welfare): "the national dividend is that part of the objective income of the community, including, of course, income derived from abroad, which can be measured in money."
- Irving Fisher (The Nature of Capital and Income, 1906) wrote: "Income consists of services." For Fisher, a community's true income is the services people actually enjoy. So he looked at consumption, not production.
How the three compare. Marshall's definition is the broadest and the hardest to measure. Pigou's is the most practical, because it counts only what can be measured in money. Fisher's is the best measure of welfare but the hardest to apply. The yearly service of a durable good, such as a car or a house, is hard to value. Modern national accounts follow Marshall's idea of net production, measured in money as Pigou proposed.
2. Why there are three methods
Every rupee of output produced is sold to someone, and every rupee received is paid out as wages, rent, interest or profit. This is the circular flow of income. National income can therefore be measured at three points of the circle:
- when goods are produced (the product or value added method);
- when incomes are earned (the income method);
- when incomes are spent (the expenditure method).
In principle all three give the same total: output = income = expenditure.
3. The product or value added method
The rule. For each producing unit, take the value of its output and subtract the value of the materials and services it bought from other firms. The remainder is its value added. Add the value added of every unit in the economy.
Steps to write in order.
- Divide the economy into sectors: primary (farming, forestry, fishing, mining), secondary (manufacturing, construction, electricity) and tertiary (trade, transport, banking, government and other services).
- Find the gross value of output of each sector, including the change in unsold stocks.
- Subtract intermediate consumption to get gross value added.
- Add product taxes and subtract product subsidies to get GDP at market prices.
- Subtract depreciation to get net domestic product.
- Add net factor income from abroad to get net national product.
The main danger is double counting. Suppose a farmer sells wheat worth 100 to a miller. The miller sells flour worth 160 to a baker. The baker sells bread worth 260. Adding all sales gives 520, but the economy produced only 260. Value added is 100 + 60 + 100 = 260, which equals the value of the final bread.
4. The income method
The rule. Add up all the incomes earned by the factors of production for producing this year's output.
What is included.
- Compensation of employees: wages, salaries, payments in kind and the employer's social security contribution.
- Operating surplus: rent, interest and profit. Profit itself is split into corporate tax, dividends and undistributed profit.
- Mixed income of the self-employed: in India a farmer or a shopkeeper earns wages, rent and profit together. So the accounts keep a separate head for it.
Adding these gives net domestic product at factor cost. Adding net factor income from abroad gives national income.
What is left out, because nothing was produced in return:
- transfer payments such as pensions, scholarships and unemployment relief;
- windfall gains such as lottery prizes;
- capital gains from selling old assets;
- illegal income, which cannot be recorded.
5. The expenditure method
The rule. Add up all final spending on goods and services produced in the country.
GDP at market prices = C + I + G + (X minus M)
- C is private final consumption expenditure by households.
- I is gross capital formation: new machines, buildings and the change in stocks.
- G is government final consumption expenditure on goods and services. Transfer payments are left out.
- X minus M is net exports. Imports are subtracted because they were produced abroad.
Only final spending counts. Buying wheat to make flour is not counted, for the same reason as in the product method.
6. A worked example: one economy, three methods
Take a small island economy for one year, in crore rupees.
| Method | Items | Total |
|---|---|---|
| Product | Farm value added 100, mill 60, bakery 100 | 260 |
| Method | Items | Total |
|---|---|---|
| Income | Wages 150, rent 30, interest 20, profit 60 | 260 |
| Expenditure | Households buy bread 240, bakery adds 20 to stock | 260 |
All three agree because everything produced was either sold or added to stock, and every rupee received was paid to someone. In real data the totals differ a little. The published accounts show the gap as a discrepancy line. They never hide it.
7. Which method India uses
No country uses one method for the whole economy. In India the National Statistics Office under the Ministry of Statistics and Programme Implementation prepares the estimates.
- The product method is used where output can be counted, such as agriculture, mining and manufacturing.
- The income method is used where output cannot be counted but incomes can, such as public administration, banking, education and health.
- The expenditure method gives GDP by type of demand and acts as a cross-check.
The new base year. On 27 February 2026 MoSPI released a new series with base year 2022-23. It replaced the 2011-12 series. The new series uses more data, including GST records, and better methods, such as double deflation in agriculture and manufacturing. Under it, real GDP grew by about 7.7 per cent in 2025-26 (Provisional Estimates, June 2026).
The first official estimates were made by the National Income Committee of 1949, chaired by P. C. Mahalanobis.
8. The three methods compared
| Point | Product method | Income method | Expenditure method |
|---|---|---|---|
| Stage of the flow | Production | Distribution of income | Spending |
| What is added | Value added by each firm | Wages, rent, interest, profit, mixed income | C + I + G + (X minus M) |
| Main danger | Double counting | Counting transfers as income | Counting intermediate purchases |
| Point | Product method | Income method | Expenditure method |
|---|---|---|---|
| Best for | Farming, mining, industry | Government, banking, services | Finding who buys the output |
| What it tells policy | Which sector grows | How income is shared | Whether growth is led by consumption, investment or exports |
Why all three are used together. Each method has a blind spot, so each checks the others. The product method cannot value a judge's or a teacher's work, but the income method can. The income method cannot easily separate a farmer's wages from his profit, but the product method can value his crop. The expenditure method alone shows whether a year's growth came from households, from investment or from exports. A Finance Minister needs to know this when framing the budget.
9. Precautions and limits
- Avoid double counting in the product method. Count value added or final goods only.
- Exclude transfer payments in the income method.
- Exclude second-hand sales and purely financial deals such as buying shares.
- Impute values for owner-occupied houses and farm produce kept for home use.
- Unpaid work at home is left out, so women's work is undercounted.
- Black money and the informal sector are hard to measure, so all three methods miss some output.
Conclusion. National income can be measured by production, by income or by spending, because these are three views of the same circular flow. The product method shows where output comes from. The income method shows who earns it. The expenditure method shows who buys it. India now combines all three in its new 2022-23 series, using each where its data are strongest. A good estimate depends less on the choice of method than on avoiding double counting and on the quality of the data behind it.
The rest of the answers
The first answer is free. The rest come with the KSLU B.A. LL.B. Semester 3 solved papers.
You have read the question paper and its first answer in full. Buy the solved papers once and you can read every answer of every solved paper in this semester.
Solved papers: ₹499 Already bought it? Sign in
The question paper itself stays free.
Found an error in this volume? Report it and we will check it against the paper.