GDP and Welfare

Correct answer: B. Real output has approximately decreased

The governing relationship is nominal GDP growth approximately equal to real GDP growth plus inflation. Using the growth-rate approximation, real GDP growth is about 10% − 12% = −2%, so real output has approximately fallen. The exact calculation, 1.10/1.12 − 1, is about −1.8%, confirming option B. C would require nominal growth to match inflation, while D makes an unsupported welfare claim.

Correct answer: C. About a 2% decrease

Output per person is calculated as real GDP divided by population. With the approximate growth rule, per-capita growth is 4% − 6% = −2%, so real output per person falls by about 2%; option C is correct. The exact ratio is 1.04/1.06 − 1, approximately −1.9%, which leads to the same conclusion. A reverses the difference, B adds the rates, and D ignores population growth.

Correct answer: C. Reconstruction raises output, but net welfare may still be lower because of the prior loss

GDP records the value of current final production, such as construction services and replacement goods. It does not automatically subtract the destruction of houses, equipment, or other wealth caused by the disaster. Thus reconstruction can increase measured GDP while the community remains worse off than before because it is replacing lost assets. Option C is correct; A and B overstate what GDP measures, and D wrongly excludes final reconstruction expenditure.

Correct answer: C. When there are no major differences in income distribution, environment, and public services

Real GDP per capita is a limited welfare indicator because it adjusts for prices and population but does not fully measure inequality, environmental quality, leisure, or public services. It becomes relatively more useful for comparing countries when these non-income conditions are broadly similar. Therefore C is correct. A describes conditions that weaken the comparison, B ignores purchasing-power issues, and D substitutes nominal for real output.

Correct answer: B. GDP may rise, but welfare may fall because crime has increased

Government purchases of crime-control services can count as current production and therefore raise measured GDP. However, the increased crime that caused the spending imposes fear, loss, and reduced quality of life, none of which is fully captured by GDP. Option B correctly separates recorded expenditure from the underlying social harm. C is false because qualifying government expenditure is included; A and D assume every expenditure improves welfare.

Correct answer: B. Output is recorded, but the negative externality is not deducted

GDP is based mainly on priced market production. The factory's sold output is recorded, but the river damage is a negative externality without a corresponding cleanup transaction or market price. Consequently, conventional GDP does not deduct that unpaid environmental cost, so measured output may overstate welfare. Option B is correct. A assumes a deduction that does not occur, C reverses what is recorded, and D confuses pollution with the classification of a good.

Correct answer: B. A distribution measure such as the Gini coefficient

Average GDP per capita can rise even when most households receive little of the additional income. The Gini coefficient and similar distribution measures add information about how unequally income is shared, making welfare analysis more meaningful. Therefore option B is correct. Gross investment and exports describe particular economic activities, while a price index describes price movements; none directly reveals the distribution of income. GDP averages alone can conceal inequality.

Correct answer: B. It may fall if self-production is not properly valued

GDP records market production more reliably than non-market production. When households replace purchased food with food produced for their own use, the market transaction disappears. If that self-produced output is not measured or valued adequately, recorded GDP can fall even though the quantity consumed and actual household welfare remain unchanged. Option B is correct; A invents double counting, C ignores measurement limits, and D is unrelated to domestic self-consumption.

Correct answer: B. No because factors such as environment health leisure and freedom may also change

The governing concept is that real GDP per capita is only a partial indicator of welfare. Perfect equality removes the distribution problem, and higher real output may increase access to goods, but welfare also depends on environmental quality, health, leisure, security, freedom, and the quality of goods. Therefore option B is correct; A and C wrongly treat GDP as complete, while D wrongly denies the usefulness of real GDP.

Correct answer: B. Median household income

The governing concept is distribution-sensitive measurement. Total GDP shows the size of economic activity but not who receives the gains. Median household income identifies the income of the middle household after arranging households by income, so it is less distorted by a small number of very rich households. Option B is therefore the best indicator. Total GDP, capital formation, and government consumption do not directly show the typical household’s income.

Correct answer: B. Because output and treatment spending may be added while pain and loss of life are not fully deducted

GDP records the market value of goods and services, including medical treatment and repair services generated after accidents. It does not subtract pain, reduced quality of life, lost leisure, or the intrinsic cost of injury in a complete way. Thus output and accident-related spending can rise together while welfare falls, making option B correct. A, C, and D contradict how GDP is measured.

Correct answer: B. When most of the growth is caused by high inflation

Nominal GDP is valued at current prices, so its growth combines changes in physical output with changes in the price level. If most growth comes from rapid inflation, the quantity of goods and services may have risen little or even fallen in real terms. Option B is therefore correct. Stable prices with higher output are less misleading, while population and public-service changes require separate analysis.

Correct answer: B. Country B

The governing concept is real GDP per capita, calculated as real GDP divided by population. For country A, ₹1,200 crore divided by 20 lakh people equals ₹6,000 per person. For country B, ₹900 crore divided by 10 lakh people equals ₹9,000 per person. Hence country B has the higher real output per person, so option B is correct; comparing totals alone would incorrectly favour A.

Correct answer: A. Welfare may improve greatly while GDP changes little

GDP mainly records measured market production and government expenditure, whereas welfare includes health, survival, time saved, and the value of services received without a market payment. If clean water is supplied efficiently with little recorded spending, disease may fall substantially while GDP changes only slightly. Option A is correct; B confuses expenditure with welfare, and C and D are plainly unsupported.

Correct answer: A. GDP does not fully reflect differences in utility and durability

GDP applies market prices to measured final output; it does not directly measure the satisfaction, quality, durability, or usefulness consumers obtain from that output. Therefore two economies with equal GDP can provide different welfare when one produces short-lived, low-utility goods. Option A states this limitation. B is false because GDP includes many nondurable goods, while C and D incorrectly equate utility with price.

Correct answer: A. Deducting natural resource depletion and pollution costs

The governing concept is green accounting: conventional GDP can rise when production creates pollution or depletes forests, minerals, and other natural capital, even though sustainable welfare may decline. Deducting estimated environmental damage and resource depletion gives a measure closer to net green output, so option A is correct. Double-counting taxes, mishandling imports, or adding used-goods sales would not correct this environmental omission.

Correct answer: B. Recorded GDP may fall while actual welfare rises

GDP counts many paid market transactions but generally does not assign the full market value of unpaid voluntary work. If volunteers replace purchased services, recorded expenditure and GDP may decline even though people receive valuable care, support, and community benefits. Thus welfare can improve while measured GDP falls, making option B correct. The words “may” and “actual welfare” prevent the absolute claims in the other options.

Correct answer: B. (6%)

The governing identity is real GDP per capita = real GDP divided by population. In growth-rate form, approximately, per-capita GDP growth equals total real GDP growth minus population growth. Therefore population growth is approximately 8% − 2% = 6%. Option B is correct. The exact multiplicative calculation gives a very similar figure, so the approximation is appropriate; 2%, 8%, and 10% confuse one of the given rates or add them incorrectly.