Measuring Development: Income, HDI and Sustainability

1. What is development? Different people, different goals

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Different people want different things. Class 10, Development (Table 1.1) shows that each group's idea of "progress" comes from its own life situation:

Person	Developmental goals (NCERT)
Landless rural labourers	More days of work, better wages; a local school that gives good education; no social discrimination; a chance to become village leaders
Prosperous Punjab farmers	High family income through higher support prices and hardworking, cheap labourers; settling their children abroad
Girl from a rich urban family	As much freedom as her brother; deciding her own life; studying abroad
Rain-fed farmers, rural women, urban unemployed youth, Narmada adivasis	Left blank for students to fill in. The point is that goals depend on where a person stands

• Developmental goals are what people seek for a better life. They include more income and also non-material goals such as equal treatment, freedom, security and respect. Goals vary with life situations and may conflict.
• Conflict, example 1. A sister wants the same freedom as her brother and wants him to share housework. The brother may not like this.
• Conflict, example 2. Industrialists want more dams for electricity. The dams submerge land and displace people such as tribals, who may prefer small check dams or tanks. NCERT prints a photo of a protest against raising the height of the Sardar Sarovar Dam on the Narmada.
• NCERT's two conclusions: (1) different persons have different goals; (2) "what may be development for one may not be development for the other. It may even be destructive for the other."
• Different vs conflicting goals (Ex. 2). "Different" means people want different things. "Conflicting" means one person's gain is another's loss. Every conflicting goal is different, but not every different goal conflicts.

Income is common to everyone, but it is not enough.

• Almost everyone in Table 1.1 wants regular work, better wages and fair prices, which all come down to more income.
• People also want equal treatment, freedom, security, respect and friendship, and they resent discrimination. In some cases these matter more than income.
• Quality of life is well-being that depends on these non-material things as well as on money and goods. NCERT: "it will be wrong to conclude that what cannot be measured is not important."
• Job-choice example. Before taking a job far away, you weigh pay against facilities for your family, the working atmosphere and the chance to learn. A low-paid but secure job can raise your sense of security. A high-paid insecure job that leaves no family time reduces your security and freedom.
• Women's work. When women do paid work, their dignity at home and in society rises. Respect for women in turn means more shared housework and more acceptance of women working outside. A safe environment lets more women take jobs or run businesses.

National development.

• If individuals differ, their ideas of national development will differ too, and may conflict.
• National development means asking which path is fair and just for all, whether there is a better way, and whether an idea benefits many people or only a small group.
• These choices are settled through a democratic political process (NCERT's opening).
• Abidjan (Ivory Coast) case, 2006. A vessel dumped 500 tonnes of liquid toxic waste in open-air dumps and the sea. A multinational dealing in petroleum and metals had contracted a local company to dispose of the waste. Within a month: 7 dead, 20 in hospital, 26,000 treated for poisoning. The question NCERT asks is who benefited (the MNC and its contractor, through cheap disposal) and who paid (local residents). Profit for a few is not development for the country.

Working definition.

• Economic development is a sustained rise in people's well-being. It combines higher income with better health, education, equity and freedom. It is broader than a rise in output.
• Cross-reference: growth vs development theory is in growth-theories-business-cycles.

2. Income as the yardstick: per capita income, GNI, PPP and World Bank classes

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Why per capita income?

• Countries are usually compared first on income, on the idea that "more income means more of all things that human beings need" (Class 10, Development).
• Total income is useless for comparison because populations differ. So we use per capita (average) income = total income ÷ population.
• Standard of living means the level of material well-being that income buys. It improves when more people work and earn.

GNI and PPP.

• GNI = GDP + net factor income from abroad (NFIA). It counts income earned by a country's residents wherever they work. (Full accounting identities are in national-income-accounting.)
• Gross National Income per capita = GNI ÷ population. It is used in two different ways:

	UNDP (HDI)	World Bank (income classes)
Conversion	PPP $ (purchasing power parity)	Atlas method, current US$
Meaning	"Every dollar would buy the same amount of goods and services in any country" (Class 10, Table 1.6 note)	Exchange rate averaged over 3 years and adjusted for the gap between domestic and international inflation, to smooth out currency swings
Current base	2021 PPP $ from the World Bank's ICP 2021 round; HDR 2025 uses it	Thresholds reset each year
India	$9,047 (2023, 2021 PPP $, HDR 2025)	About US$2,700 (verify current)

• PPP raises the income of poor countries because non-traded goods and services are cheap there. That is why India's PPP figure is about 3–4 times its Atlas figure.

World Bank income classification.

• There are four groups by GNI per capita (Atlas US$), revised every 1 July:

Class	FY2026 thresholds (set July 2025)
Low income	≤ $1,135
Lower-middle income	$1,136 – $4,495
Upper-middle income	$4,496 – $13,935
High income	> $13,935

• The July 2026 revision (FY2027) may have shifted these slightly (verify current).
• India is lower-middle income. Its GNI per capita is about US$2,700 (verify current).
• NCERT error (Class 10, Development): it puts high income at "US$ 66,500 and above in 2024", low income at "about US$ 2,300 or less", and India's per capita income at "about US$ 11,000". None of these match the Atlas thresholds. India's US$11,000 would make it upper-middle, not lower-middle. The figure also contradicts the chapter's own Table 1.6, which gives $9,047 in 2021 PPP $. Use the World Bank figures above.
• Developed countries. NCERT: rich countries, excluding the Middle East and certain other small countries, are generally called "developed". Oil wealth or tiny size can give high income without broad development.
• The World Bank stopped using the "developing countries" label in its World Development Indicators in 2016. It now uses only the income groups.
• Viksit Bharat@2047: the government's aim is for India to reach high-income status by the centenary of Independence.

Limits of the income criterion (Class 10, Ex. 4):

• It hides distribution (Section 3).
• It misses public goods such as health, schooling and a clean environment (Section 4).
• It ignores non-market work, freedom and sustainability.
• Exchange-rate conversion distorts comparisons.

3. Averages hide disparities; GDP is not welfare

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Class 10, Development, Table 1.2. Monthly incomes (Rs) of five citizens:

Country	I	II	III	IV	V	Total	Average (mean)	Median
A	9,500	10,500	9,800	10,000	10,200	50,000	10,000	10,000
B	500	500	500	500	48,000	50,000	10,000	500

• Both averages are Rs 10,000, but the two countries are very different.
• The lottery test. If you were sure to be citizen V, you might choose B. If a lottery decides your citizenship number, most people would choose A, because A has a more equitable distribution: people are "neither very rich nor extremely poor". NCERT's cartoon captions are "country with no rich and no poor" vs "country with rich and poor".
• Equitable distribution of income means no extremes of wealth or poverty. It is preferred over a skewed distribution even when the average is the same.
• Limitations of averages. An average is useful for comparison but says nothing about how income is spread.
• Mean vs median. The mean is pulled up by a few very rich people. The median (the middle person) better shows the "typical" citizen. In B the median is Rs 500 against a mean of Rs 10,000.
• Ex. 4. A rising average income does not prove that every section is better off. The rise may go only to the top.
• Ex. 3 worked answer. Four families average Rs 5,000, so the total is Rs 20,000. The other three earn 4,000 + 7,000 + 3,000 = 14,000, so the fourth earns Rs 6,000.

Class 12, National Income Accounting, §2.5: three reasons GDP ≠ welfare.

1. Distribution - Year 2000: 100 people × Rs 10 = Rs 1,000. - Year 2001: 90 × Rs 9 + 10 × Rs 20 = 810 + 200 = Rs 1,010. - GDP rose by Rs 10, but 90% of people lost 10% of income while 10% gained 100%. If welfare means "how many people are better off", GDP is a poor index.

2. Non-monetary exchanges - Unpaid domestic work, mostly done by women, is left out. - Barter in the informal sector and remote areas is also left out. - So GDP is underestimated and does not clearly show productive activity or well-being.

3. Externalities (benefits or harms to others that are not paid for or penalised, and have no market) - An oil refinery's value added enters GDP. But it pollutes the river, harms people who use the water, kills fish and costs fishermen their livelihood. - With negative externalities, GDP overstates welfare. With positive externalities, it understates welfare.

Beyond NCERT.

• Simon Kuznets, who built US national accounts, warned in 1934 that the welfare of a nation can scarcely be inferred from a measure of national income.
• Leisure is not counted, so longer working hours raise GDP but may lower welfare.
• Defensive expenditure is counted as a gain although it only repairs damage. Examples are air purifiers, anti-pollution spending and hospital bills from smog.
• Depletion of natural capital. Cutting a forest or pumping out aquifers raises GDP with no deduction for lost stock. Green accounting (for example, green GDP or SEEA) tries to correct this; see environment-sustainable-development.
• Stiglitz-Sen-Fitoussi Commission (2009), set up by France, recommended looking at household income and consumption rather than production, giving weight to distribution, measuring subjective well-being and tracking sustainability separately.

Policy answer: inclusive growth.

• Inclusive growth is growth that is broad-based across sectors and regions and creates opportunities for all, especially the poor and marginalised. It reduces poverty and inequality.
• 11th Five Year Plan (2007-12): "Towards Faster and More Inclusive Growth".
• 12th Plan (2012-17): "Faster, More Inclusive and Sustainable Growth".
• Measuring inequality (Gini coefficient, Lorenz curve) is covered in poverty-inequality.

4. Beyond income: the Kerala-Haryana-Bihar comparison and public facilities

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Class 10, Development, Tables 1.3–1.4.

State	Per capita NSDP 2023-24, current prices (ES 2024-25)	IMR per 1,000 live births (2020)	Literacy rate % (2017-18)	Net Attendance Ratio, secondary, ages 15–17 (2017-18)
Haryana	₹3,25,759	28	82	73
Kerala	₹2,81,001	6	94	94
Bihar	₹60,337	27	62	69

• Income ranking: Haryana > Kerala > Bihar. Haryana's per capita income is about 1.16 times Kerala's and about 5.4 times Bihar's.
• Outcome ranking: Kerala is far ahead. Haryana is richer but lags on the indicators that matter.
• IMR. In Kerala 6 of 1,000 babies die before age one; in Haryana 28. NCERT says "nearly three times", but 28 ÷ 6 ≈ 4.7 times, so the gap is larger than the text states. (NCERT arithmetic slip.)
• Attendance. About one-third of Bihar's 15–17-year-olds are not in secondary school. "Nearly one-third of your class friends would be missing."
• NCERT inconsistency: the text says the IMR data are "during 2018", but the table heads them 2020.
• Definitions (as used in the table):
• Literacy rate = literate share of the 7+ population (Census convention).
• Net Attendance Ratio (NAR) = children of the official age group (here 15–17) attending school at that level, as a % of all children in that age group. It excludes over-age and under-age pupils, so it cannot exceed 100.
• Gross Enrolment Ratio (GER) = total enrolment at a level, of any age, as a % of the official-age population. Over-age and under-age pupils are counted, so GER can exceed 100%.

Table 1.5: rural Uttar Pradesh (Activity 2, worked).

Category	Male	Female
Literacy rate, rural population	76%	54%
Literacy, rural children 10–14	90%	87%
Rural children 10–14 attending school	85%	82%

• Filled in:
• (a) Literacy is 76% for rural males and 54% for rural females. It is not only that many adults never went to school: there are children who are currently out of school.
• (b) 18% of girls and 15% of boys aged 10–14 are not in school. Illiteracy in that age group is 13% (female) and 10% (male).

• (c) High illiteracy in the 10–14 age group more than 75 years after Independence is disturbing.

• The Constitution's goal (a Directive Principle) of free and compulsory education for all children up to age 14 by 1960 was missed. (It later became a right under the RTE Act, 2009; details in human-capital.)

Regional disparity.

• Regional disparity means uneven income, infrastructure and human development across states. Broadly, the prosperous south and west are ahead of the central and eastern states (Bihar, UP, MP, Jharkhand, Odisha).
• The SDG India Index (NITI Aayog) is a composite state ranking across the SDGs. The latest edition is 2023-24 (verify current).

Why income is not enough: public facilities.

• "Money in your pocket cannot buy all the goods and services that you may need to live well."
• Money normally cannot buy:
• a pollution-free environment,
• unadulterated medicines, unless you move to a community that already has them,

• protection from infectious diseases, unless the whole community takes preventive steps.

• Public facilities are goods and services such as security, schools, health care and a clean environment. They are best and most cheaply provided collectively.

• Security for a whole locality costs less than guards for each house.

• You can study because other children also want to, and because people believe government should open schools. Many girls still cannot reach high school because facilities are missing.

• Kerala's low IMR comes from "adequate provision of basic health and educational facilities".

• Public Distribution System (PDS). Where it works well, health and nutrition are likely to be better.
• Tamil Nadu: 90% of rural people used a ration shop, against West Bengal: 35%.

• Rural Tamil Nadu is better off because wide PDS use shows the system actually delivers cheap food, which gives food security and better nutrition.

• Community participation means citizens working together for common goals (cleaning public places, tree plantation, running a school committee). It creates local public goods without any market exchange.

• Ex. 3: good facilities depend not only on money spent but on governance, staff presence, community demand, social norms (for example, about girls' schooling) and local participation.
• Cross-references: public-goods theory (non-rival, non-excludable) is in market-structures-competition; how the PDS works is in agri-marketing-msp-pds.

5. Health and nutrition indicators: reading the numbers

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Mortality and longevity over time. Class 11, Human Capital Formation in India, Table 4.1:

Indicator	1951	1981	1991	2001	2018-22
Real per capita income (Rs)	7,651	12,174	15,748	23,095	94,054
Crude death rate (per 1,000)	25.1	12.5	9.8	8.1	6.0
Infant mortality rate	146	110	80	63	28
Life expectancy, male	37.2	54.1	59.7	63.9	68.6
Life expectancy, female	36.2	54.7	60.9	66.9	71.4
Literacy rate (%)	16.67	43.57	52.21	65.20	78

• Infant Mortality Rate (IMR) = deaths of infants under one year per 1,000 live births in a year.
• It was about 218 in the colonial period and 146 in 1951.
• It was 28 in 2018-22 (NCERT). The latest SRS figure is about 25–26 (verify current).

• keec108 (WDI) gives India 25.5, China 4.8, Pakistan 51.

• Mortality rate (crude death rate) = deaths per 1,000 population in a year. It fell from 25.1 (1951) to 6.0.

• Life expectancy at birth = average years a newborn is expected to live if today's death rates continue.
• About 32 years in colonial India; 37.2 (M) and 36.2 (F) in 1951.
• Now 68.6 (M) and 71.4 (F).
• 72.0 in HDR 2025 (data year 2023).

• Women now outlive men, which is the normal biological pattern.

• Maternal mortality = maternal deaths per 1,00,000 live births.

• SRS 2019-21: 93 (verify latest SRS bulletin).
• SDG target 3.1: below 70 by 2030. The National Health Policy 2017 target was 100 by 2020, which India met.
• keec108 (for 2017-2023): India 103, China 23, Pakistan 154.
• NCERT terminology: keec108 says "Maternal Mortality Rate per lakh births". Per 1,00,000 live births is strictly the maternal mortality ratio. The rate uses women aged 15–49 as the denominator.

Nutrition.

• Undernourishment is when habitual food intake does not give the dietary energy needed for a normal, active, healthy life.
• FAO measures it as the Prevalence of Undernourishment (PoU) in its SOFI report.
• It is an SDG 2.1 indicator and one of the four Global Hunger Index indicators.

• keec108: India 17%, China 3%, Pakistan 19%.

• Body Mass Index (BMI) = weight (kg) ÷ height (m)².

• Adults: below 18.5 = underweight, 18.5–24.9 normal, 25 or above = overweight (30+ obese).

• Children are assessed on BMI-for-age charts, not adult cut-offs. NCERT Activity 3: a girl aged 14 years 8 months with BMI 15.2 is undernourished; a boy aged 15 years 6 months with BMI 28 is overweight.

• Class 10 Ex. 13 table: adults aged 15–49 with BMI < 18.5:

State	Male %	Female %
Kerala	8.5	10
Karnataka	17	21
Madhya Pradesh	28	28
All India	20	23

• NCERT error: the table is labelled NFHS-5 (2019-21), but these figures match NFHS-4 (2015-16). NFHS-5 all-India underweight adults are about 18.7% (women) and 16.2% (men) (verify).
• Ex. 13(ii) asks why about one-fifth of people are undernourished when India has enough food. The answer is access, not availability. Poverty, prices, a weak PDS in some states, and poor sanitation and disease (which stop the body absorbing nutrients) all block access. This is Amartya Sen's entitlement idea: hunger comes from failed command over food, not only from shortage.

Water and sanitation (WASH).

• Access to sanitation and drinking water is measured on the WHO/UNICEF Joint Monitoring Programme (JMP) service ladder (SDG 6):
• "At least basic" sanitation = an improved facility that is not shared with other households.

• "At least basic" drinking water = an improved source with collection taking ≤ 30 minutes round trip, including queuing.

• keec108: sanitation 78% / 96% / 71%; water 93% / 98% / 91% (India / China / Pakistan).

• Update hooks (verify current):
• Swachh Bharat Mission-Gramin: all villages declared ODF (open defecation free) on 2 October 2019; now in the ODF-Plus phase.

• Jal Jeevan Mission (2019): functional household tap connections; rural coverage share to be verified.

• Stunting and wasting (child anthropometry) are covered in human-capital.

6. Demographic indicators of development

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Class 11, Comparative Development Experiences, Table 8.1 (2021–23, WDI 2024):

Indicator	India	China	Pakistan
Population (million)	1,428	1,411	240
Annual population growth (%)	0.81	−0.10	1.96
Density (per km²)	473	150	300
Sex ratio (F per 1,000 M)	930	898	948
Fertility rate (TFR)	2.0	1.2	3.4
Urbanisation (%)	36	65	38

• Population growth rate is the annual % change from births, deaths and net migration. Pakistan's is highest. India's has slowed below 1%. China's has turned negative.
• Population density is people per km². China is the largest in area but has the lowest density. India has the highest.
• India became the world's most populous country in 2023 (UN World Population Prospects).
• One in every six people in the world is Indian and another is Chinese (NCERT).

China's one-child norm.

• Introduced in the late 1970s (1979-80). It sharply cut population growth.
• Side effects:
• It lowered the sex ratio, because son preference plus a one-child limit led to sex-selective abortion.

• It caused rapid ageing, with more elderly people relative to the young.

• Responses: a two-child policy (2016) and a three-child policy (2021).

Sex ratio and son preference.

• Sex ratio: India counts females per 1,000 males. The international convention is males per 100 females, so read carefully.
• Son preference (valuing boys over girls) is found in all three countries. NCERT gives it as the cause of their low sex ratios.
• India's numbers:
• Census 2011: overall 943; child sex ratio (0–6) 918.
• NFHS-5 (2019-21): overall 1,020, the first survey with more women than men. This is driven by longer female life expectancy and male migration. But the sex ratio at birth was only 929, so the bias at birth persists.

• Economic Survey 2017-18: about 63 million "missing women" and 21 million "unwanted girls". The Survey called this a son "meta-preference": parents keep having children until they get a son.

• Policy responses: the PCPNDT Act, 1994 (bans sex determination before birth) and Beti Bachao Beti Padhao (January 2015).

Fertility.

• Total Fertility Rate (TFR) is the average number of children a woman would have over ages 15–49 at current age-specific birth rates.
• Replacement level fertility is the TFR at which each generation exactly replaces itself, ignoring migration. It is about 2.1, and higher where child mortality is high because some children die before reproducing.
• India's TFR: 2.0 in NFHS-5, below replacement.
• All but five states/UTs are at or below 2.1.
• The five above it: Bihar (~3.0), Meghalaya, UP, Jharkhand and Manipur.
• This sets up a north-south divide: an ageing south and a young north.

Urbanisation.

• Urbanisation is the rising share of people living in urban areas.
• India: 31.1% (Census 2011), about 36% now, against China's about 65%.
• Unplanned urbanisation adds to pollution, congestion and slums.

Demographic transition toolkit.

• Dependency ratio = (population aged 0–14 + population aged 65+) ÷ population aged 15–64 (usually × 100).
• Child dependency ratio = 0–14 ÷ 15–64.

• Old-age dependency ratio = 65+ ÷ 15–64.

• Demographic window of opportunity: a period of a few decades when the working-age share is highest and the dependency ratio lowest. UNFPA puts India's window at about 2005–2055 (verify).

• Population pyramid: a bar graph of population by age and sex. Its shape shows the stage of demographic transition:
• Expansive: wide base, high births (Pakistan).
• Constrictive: narrowing base, falling births (India now).

• Stationary: nearly straight sides, low births and deaths (ageing societies).

• Ageing population: a rising share of older people from low fertility and long lives.

• China's post-one-child greying is the classic case.
• UNFPA India Ageing Report 2023: the 60+ share rises from about 10% (2022) to about 21% by 2050 (verify).

• Kerala and Tamil Nadu are ageing well ahead of Bihar and UP.

• Cross-references: using the window (demographic dividend) is in human-capital; the China-Pakistan strategy comparison is in india-china-pakistan.

7. Human development: the idea and the HDI

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Human capital vs human development (Class 11, Human Capital Formation in India, §4.4):

	Human capital	Human development
View of people	Means to an end: the end is higher labour productivity	Ends in themselves
Education and health	Inputs that raise output	Integral to well-being; without literacy and a long, healthy life, people cannot make "other choices which they value"
Spending that does not raise output	"Unproductive"	Still worthwhile
Rights angle	None	Every individual has a right to be literate and lead a healthy life

• So human development is the broader idea. Basic education and basic health matter irrespective of their effect on productivity.

Intellectual roots.

• Amartya Sen's capability approach judges development by the expansion of people's real freedoms (capabilities) to lead lives they value, not by income alone.
• Functionings are what a person actually is or does (being nourished, being literate).
• Capabilities are the set of functionings a person can choose from.

• Key book: Development as Freedom (1999).

• Mahbub ul Haq (Pakistani economist) launched UNDP's first Human Development Report in 1990, with Sen's help on the index.

• Class 10, Development: putting "Human" before "Development" makes it clear that "what is important in development is what is happening to citizens … their health, their well being".

HDI construction (UNDP).

• The Human Development Index (HDI) is a composite index from 0 to 1 covering three dimensions:

Dimension	Indicator	Goalposts (min – max)
Long and healthy life	Life expectancy at birth	20 – 85 years
Knowledge	Expected years of schooling (EYS) for children of school-entry age	0 – 18
	Mean years of schooling (MYS), adults 25+	0 – 15
Decent standard of living	GNI per capita (2021 PPP $), log-transformed	$100 – $75,000 (verify for 2021 PPP)

• Mean years of schooling is the average completed years of education of people aged 25 and over. Together with EYS it forms the education dimension.

• Steps: 1. Dimension index = (actual − minimum) ÷ (maximum − minimum). 2. Education index = (MYS index + EYS index) ÷ 2. 3. Income index = [ln(GNI pc) − ln(100)] ÷ [ln(75,000) − ln(100)]. The log reflects that each extra dollar matters less as income rises. 4. HDI = (I_health × I_education × I_income)^(1/3), the geometric mean.

• Why the geometric mean: a shortfall in one dimension is not fully offset by a surplus in another. Balanced progress scores higher.

• Worked check for India (HDR 2025, data 2023):
• Health = (72.0 − 20) ÷ 65 = 0.800.
• EYS index = 13.0 ÷ 18 = 0.722; MYS index = 6.9 ÷ 15 = 0.460; Education = 0.591.
• Income = ln(9,047/100) ÷ ln(75,000/100) = 4.505 ÷ 6.620 = 0.681.
• HDI = (0.800 × 0.591 × 0.681)^(1/3) ≈ 0.685. ✔

• The weakest link is schooling.

• Before 2010: arithmetic mean of life expectancy, education (adult literacy with 2/3 weight + combined GER with 1/3 weight) and GDP per capita (PPP).

• Categories:
• Very high: ≥ 0.800
• High: 0.700–0.799
• Medium: 0.550–0.699
• Low: < 0.550

India and its neighbours. HDR 2025 (data year 2023; Class 10 Table 1.6 and Class 11 Table 8.5):

Country	GNI pc (2021 PPP $)	Life expectancy	MYS (25+)	HDI rank (of 193)
Sri Lanka	12,616	77.5	10.8	89
China	22,029	78.0	8.0	78 (HDI 0.797)
India	9,047	72.0	6.9	130 (HDI 0.685, medium)
Bangladesh	8,498	74.7	6.8	130 (tied with India)
Nepal	4,726	70.4	4.5	145
Myanmar	4,919	66.9	6.4	150
Pakistan	5,501	67.6	4.3	168 (HDI 0.544, low)

• India's EYS is 13.0. HDR 2025's theme is "A matter of choice: People and possibilities in the age of AI".
• Sri Lanka, a small neighbour, is ahead of India on every item.
• Nepal and Bangladesh have lower income than India but higher life expectancy (NCERT: "better than India in life expectancy"). Strictly, Nepal's 70.4 is below India's 72.0 in HDR 2025 data; only Bangladesh (74.7) and Sri Lanka clearly beat India. Treat NCERT's Nepal claim with caution.
• NCERT errors:
• Class 10 heads the rank column "2021-22", but the values are HDR 2025's for 2023.

• Class 11 (Table 8.5) gives MYS for people "aged 15 and above" and adds "in %". UNDP uses 25+, and MYS is in years, not %.

• Check whether an HDR 2026 has been released before quoting the rank (verify current).

8. The HDR family of indices and the liberty critique

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Companion indices (UNDP).

Index	Since	What it does	India (verify current)	Direction
Inequality-adjusted HDI (IHDI)	2010	Discounts each HDI dimension by its Atkinson inequality measure. The HDI-to-IHDI gap is the "loss due to inequality"	~0.47; loss ~30% (HDR 2025)	IHDI ≤ HDI; equals HDI only under perfect equality
Gender Development Index (GDI)	1995 (revised 2014)	Female HDI ÷ male HDI. Countries fall into 5 groups by absolute distance from parity	~0.87	Parity = 1
Gender Inequality Index (GII)	2010	3 dimensions, 5 indicators (below)	~0.40, rank ~102 (HDR 2025)	0 = equality; higher = worse
Planetary pressures-adjusted HDI (PHDI)	2020	See Section 10	—	PHDI ≤ HDI
Multidimensional Poverty Index (MPI)	2010 (with OPHI)	Covered in poverty-inequality	—	—

• GII dimensions and indicators:
• Reproductive health: maternal mortality ratio; adolescent birth rate.
• Empowerment: share of parliamentary seats; population with at least some secondary education (F vs M).

• Labour market: labour force participation rate (F vs M).

• Trap: in the GDI a value near 1 is good. In the GII a higher value means more inequality. Do not read both the same way.

• The IHDI is the HDI people actually get, given how unequally it is shared. The HDI is the "potential" level.

The liberty critique (Class 11, Comparative Development Experiences, §8.5).

• NCERT: the HDR indicators are "extremely important … but these are not sufficient". We also need liberty indicators.
• One such measure was added: "the extent of democratic participation in social and political decision-making". But it was "not given any extra weight".
• Obvious liberty indicators are absent:
• the extent of constitutional protection of citizens' rights,

• the extent of constitutional protection of the independence of the judiciary and the rule of law.

• Without these, "given overriding importance", the HDI is "incomplete and its usefulness limited".

• Why this matters for India vs China: China leads on health and education, but "lack of political freedom and its implications for human rights are major concerns" (NCERT conclusion).
• UNDP's own attempts:
• Human Freedom Index (HDR 1991) and Political Freedom Index (HDR 1992).
• Both were dropped after objections from member states, which shows how politically hard it is to measure freedom.

Other critiques of the HDI.

• Arbitrary equal weights (one-third each) with no theory behind them.
• Substitutability. The geometric mean reduces it but does not remove it; a big income gain can still mask weak schooling.
• Years of schooling ≠ learning. Quality is ignored, and India's ASER learning outcomes lag enrolment.
• Data lags and revisions. HDR 2025 uses 2023 data. Back-calculation means ranks across reports are not comparable.
• It averages across a country and hides inequality, which is why the IHDI exists.
• It leaves out environment, security and freedom.

Precursor: Physical Quality of Life Index (PQLI).

• Morris David Morris, 1979 (Overseas Development Council).
• Three indicators: infant mortality, life expectancy at age one, basic literacy. Each is scaled 0–100 and simply averaged.
• It has no income component, because it was meant as an alternative to GNP.

9. Beyond GDP: happiness and well-being measures

Read the detailed note →

Gross National Happiness (Bhutan).

• The 4th King, Jigme Singye Wangchuck, said in the 1970s that "Gross National Happiness is more important than Gross National Product."
• It is written into Bhutan's 2008 Constitution (Article 9): the State shall promote conditions for the pursuit of GNH.
• GNH Index (Centre for Bhutan Studies & GNH Research):
• 4 pillars: sustainable and equitable socio-economic development; environmental conservation; preservation and promotion of culture; good governance.
• 9 domains: psychological well-being, health, education, time use, cultural diversity and resilience, good governance, community vitality, ecological diversity and resilience, living standards.

• 33 indicators.

• Gross National Happiness is thus both a holistic development philosophy and an index.

Happiness economics.

• Happiness economics studies subjective well-being and life satisfaction and what drives them (income, health, social support, trust, freedom).
• The usual survey tool is the Cantril ladder: rate your life from 0 (worst) to 10 (best).
• World Happiness Report (WHR):
• Published since 2012, now by Oxford's Wellbeing Research Centre with Gallup and the UN SDSN.
• Ranking uses the Cantril ladder. It explains scores with six variables: GDP per capita, social support, healthy life expectancy, freedom to make life choices, generosity, perceived corruption.
• Finland tops it.

• India ranked 118 in WHR 2025 (verify WHR 2026).

• UNGA resolution 65/309 (2011), "Happiness: towards a holistic approach to development", was sponsored by Bhutan.

• International Day of Happiness: 20 March (UNGA resolution 66/281, 2012).
• Easterlin paradox (Richard Easterlin, 1974):
• Within a country, richer people are happier.
• Over time, average happiness barely rises as national income grows.
• Reasons: relative income (people compare with others) and adaptation (people get used to higher income).
• It is contested by Stevenson and Wolfers (2008), who found happiness does rise with income across and within countries.

Other dashboards.

• Social Progress Index (SPI), by the Social Progress Imperative (2013). It measures social and environmental outcomes only, with no economic inputs, in three dimensions: basic human needs, foundations of well-being, opportunity.

• India: EAC-PM's SPI for states and districts (December 2022), with the Institute for Competitiveness.

• OECD Better Life Index (2011): 11 topics (housing, income, jobs, community, education, environment and others). Users set their own weights.

• Wellbeing economy: an economy designed to serve human and ecological well-being first, not GDP growth for its own sake.
• New Zealand's Wellbeing Budget (2019).

• The Wellbeing Economy Governments (WEGo) group: Scotland, Iceland, New Zealand, Wales, Finland.

• Ease of living: better everyday quality of life from infrastructure and services (housing, water, transport, safety, communication).

• MoHUA Ease of Living Index for cities: 2018 and 2020 editions (pillars include quality of life, economic ability, sustainability, and citizen perception).

Common thread with Section 3: all these measure outcomes people actually experience (health, trust, freedom, satisfaction, livability) rather than output produced.

10. Sustainability of development

Read the detailed note →

Why sustainability? (Class 10, Development)

• Even a developed country wants its level of development to be at least maintained for future generations.
• Since the second half of the 20th century, scientists have warned that present types and levels of development are not sustainable.
• "We have not inherited the world from our forefathers — we have borrowed it from our children."

Example 1: groundwater (a renewable resource).

• About 300 districts saw water levels fall by over 4 metres in 20 years.
• Nearly one-third of the country overuses groundwater. In 25 years, 60% will do so if present use continues.
• Hotspots: agriculturally prosperous Punjab and western UP; hard-rock plateaus of central and south India; some coastal areas (seawater intrusion); fast-growing cities.
• Renewable resources are replenished by nature (groundwater, crops, forests). They can still be overused if extraction exceeds recharge by rain.
• Update hook: the CGWB Dynamic Ground Water Resources assessment (annual, joint with states) gives the stage of extraction and the number of over-exploited blocks (verify current).

Example 2: crude oil (a non-renewable resource).

• Non-renewable resources are a fixed stock that cannot be replenished. New discoveries add to the stock and only postpone exhaustion.
• Class 10 Table 1.7 (reserves-to-production view):

Region	Reserves (thousand million barrels)	Years reserves will last at current extraction
Middle East	836	70
USA	69	10.5
World	1,732	~47

• Import-dependent India bears the burden when oil prices rise (import bill, inflation, current account deficit). India imports about 85–88% of its crude needs (verify current).
• Countries like the USA, with low reserves, try to secure oil through military or economic power.
• NCERT inconsistency: the table is labelled "Reserves (2017)" but sourced to the 2024 Statistical Review of World Energy. The text says "50 years" against the table's 47.
• Environmental degradation does not respect national or state boundaries. Our future is linked, and sustainability is a new field joining scientists, economists, philosophers and social scientists.
• Gandhi (Class 10 Ex. 10): "The Earth has enough resources to meet the needs of all but not enough to satisfy the greed of even one person." Development must stay within needs, not greed.

Tying sustainability back into the HDI: the Planetary pressures-adjusted HDI (PHDI).

• Introduced in HDR 2020, "The Next Frontier: Human Development and the Anthropocene".
• PHDI = HDI × (1 − index of planetary pressures). The adjustment is the average of indices of per-capita CO₂ emissions and per-capita material footprint.
• It measures how much environmental pressure a country's development creates.
• Very-high-HDI countries fall furthest, because high consumption means high emissions and material use. Some, such as Norway, drop many places. Lower-HDI countries with small footprints lose little.
• Lesson: current high human development is often bought with unsustainable planetary pressure.
• Cross-reference: the Brundtland definition, SDGs and climate economics are in environment-sustainable-development.

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Exam angles

Prelims — high-yield facts and traps

• Who publishes what:
• UNDP: HDR, HDI, IHDI, GDI, GII, PHDI; MPI with OPHI (Oxford).
• World Bank: income classification and WDI.
• WHR: Wellbeing Research Centre/Gallup/UN SDSN.
• Bhutan's Centre for Bhutan Studies: GNH Index.
• Morris (1979): PQLI.
• Social Progress Imperative: SPI; EAC-PM: SPI for India's states and districts.
• MoHUA: Ease of Living Index.
• NITI Aayog: SDG India Index.
• FAO: PoU/SOFI.

• WHO/UNICEF: JMP.

• HDI traps:

• It uses GNI per capita in PPP (not GDP, not Atlas $), log-transformed.
• Education uses MYS (25+) and EYS. Adult literacy and GER were dropped in 2010.
• Geometric mean since 2010.
• Scale 0–1; cut-offs 0.550 / 0.700 / 0.800.

• "HDI is an arithmetic average of three indices": FALSE (since 2010).

• World Bank traps:

• It classifies by Atlas-method GNI in US$, not PPP.
• Thresholds are revised every 1 July. High income starts above about $13,935 (FY2026).
• India is lower-middle.

• "India's per capita income is about US$11,000 at market exchange rates": FALSE.

• Definitions UPSC twists:

• IMR: under age one, per 1,000 live births.
• MMR: per 1,00,000 live births (a ratio; the "rate" uses women 15–49).
• Crude death rate: per 1,000 population.
• TFR replacement ≈ 2.1.
• Sex ratio: F per 1,000 M in India vs M per 100 F internationally.
• GER can exceed 100; NAR/NER cannot.
• Literacy: 7+ (Census) vs adult literacy 15+.
• Dependency ratio = (0–14 + 65+) ÷ (15–64).
• BMI = kg/m²; adult cut-offs 18.5 / 25; children use BMI-for-age.

• "At least basic" sanitation = improved and not shared; "at least basic" water = improved and ≤ 30 minutes round trip.

• Index directionality:

• A higher GII is worse.
• GDI parity = 1.
• IHDI ≤ HDI; PHDI ≤ HDI.

• Gender features in GDI and GII. Inequality features in IHDI (and, for gender, GII).

• NCERT-data statements:

• Kerala has lower income but better IMR (6 vs 28), literacy (94 vs 82) and NAR (94 vs 73) than Haryana.
• Sri Lanka (rank 89) ranks above India (130). Bangladesh ties India at 130 with higher life expectancy.
• China: largest area, lowest density. Pakistan: highest growth (1.96%) and TFR (3.4).

• PDS use: Tamil Nadu 90% vs West Bengal 35% of rural people.

• Other facts:

• PQLI = IMR + life expectancy at age one + basic literacy, simple average, no income.
• GNH = 4 pillars, 9 domains, 33 indicators; Article 9 of Bhutan's 2008 Constitution.
• International Day of Happiness = 20 March.
• India's NFHS-5: TFR 2.0, overall sex ratio 1,020, sex ratio at birth 929.

Mains — GS-III themes

1. "GDP growth is not development." Use Class 12's three reasons (distribution: Rs 1,000 → 1,010 with 90% worse off; non-market work; externalities), Class 10's Country A vs B, and Kerala vs Haryana. Then weigh beyond-GDP measures (HDI, IHDI, GNH, WHR, SPI, PHDI) against a growth-first strategy. Close with inclusive growth (11th and 12th Plans).
2. India's human development lag relative to its income and growth. India is lower-middle income yet ranks 130 on HDI, with low mean years of schooling (6.9). Compare Sri Lanka and Bangladesh. China's advantage came from pre-reform social investment in rural health, education and land reforms (Class 11). Cover the Kerala model (public provision, literacy, women's agency) and its limits (fiscal stress, remittance dependence, ageing, educated unemployment). Explain through state capacity and public provision of public facilities.
3. Are composite indices sufficient? Cover the liberty-indicators argument (rights, judicial independence, rule of law), arbitrary weights and substitutability, schooling vs learning, data lags. Discuss India's contests with global indices (GHI, WHR, press and democracy indices) as a debate over methodology (for example, opinion polls, small samples) vs uncomfortable reality.
4. Demographic transition and development. Sex-ratio imbalance and son meta-preference (63 million missing women), with PCPNDT and BBBP. North-south fertility divergence: an ageing south (Kerala, Tamil Nadu) vs a young north (Bihar, UP), with fiscal and political implications (delimitation, Finance Commission transfers, migration). Using the window of opportunity. Quality of urbanisation.
5. Sustainability. Groundwater depletion in Green Revolution belts (free power, MSP bias toward paddy and wheat). Crude import dependence and exposure to price shocks. Intergenerational equity ("borrowed from our children"). Why the PHDI reorders rankings and what that implies for the "develop first, clean up later" model.
6. Access vs availability in nutrition. Undernourishment despite food surpluses; Sen's entitlements; the PDS; WASH links to nutrition.

Current-affairs hooks

• Annual HDR release: India's HDI rank, IHDI loss, GII and GDI values.
• World Bank July reclassification of income groups and progress toward the Viksit Bharat@2047 high-income goal.
• SRS statistical reports and MMR/IMR special bulletins; NFHS-6 release; Census 2027 schedule and caste enumeration (verify); UN World Population Prospects revisions.
• World Happiness Report (around 20 March); Global Hunger Index (October); SDG India Index; Ease of Living and Quality of Life indices; Economic Survey chapters on the social sector and well-being.
• CGWB groundwater assessment; crude-oil price shocks and India's import bill; ICP PPP revisions changing "largest economy in PPP" rankings.
• China's population decline and pronatalist policies; India's ageing and elder-care debates; the Jal Jeevan Mission and SBM-G ODF-Plus progress.