Why people stay poor: causes, vicious circles and traps

Detail

1. Nurkse's vicious circle of poverty (1953)

• Vicious circle of poverty: Ragnar Nurkse's idea that "a country is poor because it is poor".
• Being poor is both the cause and the result.

• Low income leads to low saving, low investment and low productivity. These keep income low.

• Capital formation means adding to the stock of machines, tools, roads and buildings. It is the "investment" link in the circle.

• Productivity means output per worker. It rises when each worker has more capital and skill to work with.

1a. Supply side (the saving circle)

• Low income → low saving → low investment (capital formation) → low productivity → low income.
• Poor families spend almost all their income on food and other basic needs.
• Very little is left to save, so banks have little money to lend for new factories or farm tools.
• Without new capital, output per worker stays low, so income stays low.

1b. Demand side (the market circle)

• Low income → low purchasing power → small market → weak inducement to invest → low productivity → low income.
• Purchasing power is how much people can actually buy.
• Inducement to invest is a firm's reason to invest, which is the hope of selling its extra output.
• A shoe factory will not expand if most people cannot afford shoes. So investment stays low even when savings exist.

1c. Worked example (illustration only)

• Growth of income ≈ saving rate ÷ capital-output ratio (g = s / v). The capital-output ratio is how many rupees of capital are needed to produce ₹1 of extra output each year.
• Say saving is 5% of income and v = 4. Then income grows by 5 ÷ 4 = 1.25% a year.
• If population grows by 2% a year, per capita income (income per person) falls by about 0.75% a year.

• Lower per capita income means even less saving next year. The circle closes.

• Breaking the circle: raise s (saving or foreign capital) or lower v (better technology). Either one lets growth run ahead of population.

2. Poverty traps

• Poverty trap: a self-reinforcing threshold (a minimum level). Below it, a person or country stays poor, because a lack of savings, nutrition, credit or education stops income from rising. Above it, income can keep rising.
• Difference from the vicious circle: the vicious circle says all poor stay poor. A trap says only those below a certain level stay stuck. So a one-time push above the threshold can free them for good.

2a. Nutrition-efficiency-wage trap

• Too little food → low work capacity → low wage → too little food.
• A hungry labourer cannot do heavy work for long, so employers pay less or do not hire them.
• With a low wage, the worker still cannot buy enough calories.

2b. Nelson's low-level equilibrium trap (1956)

• Low-level equilibrium trap: Richard Nelson's model. Any rise in per capita income causes faster population growth, which pulls per capita income back down to a low, stable level.

• Equilibrium here means a level that the economy keeps returning to.

• Worked example:

• Per capita income rises 2% because of a good harvest.
• Better food lowers death rates, so population growth jumps from 1.5% to 3%.

• Total income grows 3.5%, but population grows 3%. Per capita income gains only 0.5% and soon drifts back.

• Way out: a critical minimum effort, meaning income must rise faster than population can ever grow (population growth has a natural upper limit).

2c. Credit trap

• No collateral → no formal loan → moneylender at high interest → debt trap.
• Collateral is property (land, gold) pledged to a lender as security.

• Debt trap is when a borrower must take new loans just to pay interest on old ones.

• Worked example: a farmer borrows ₹10,000 from a moneylender at 5% a month.

• Interest = ₹500 a month = ₹6,000 a year (60%).
• A bank loan at 10% a year would cost only ₹1,000.
• If the crop fails, the unpaid interest is added to the loan, so the debt grows faster than any income the farmer can earn.

2d. Health-shock trap

• Illness → sale of assets (land, cattle) → loss of earning base → poverty.
• Out-of-pocket expenditure (OOPE): the health spending that households pay directly at the point of care, without insurance or government support.
• In India, OOPE fell from 62.6% of total health expenditure (2014-15) to 47.1% (2019-20) [3].
• Government health expenditure rose from 1.13% of GDP (2014-15) to 1.35% (2019-20) [3].
• Even at 47%, almost half of all health spending still comes from families' own pockets. That is why one serious illness can push a family back below the poverty line.

2e. Geography trap

• Remote, drought-prone or landlocked areas have high costs of reaching markets.
• Transport eats up the farmer's profit, and firms avoid such places.
• So there are few jobs outside farming, and the area stays poor.

2f. Evidence: Banerjee and Duflo, Poor Economics (2011; Nobel 2019)

• S-curve: a graph with today's income on one axis and future income on the other.
• At low incomes the curve lies below the 45° line (where future income = today's income). Income shrinks towards a low level, so there is a trap.
• Past a threshold point the curve rises above the 45° line. Income keeps growing.

• If the curve is instead L-shaped (always above the line at low incomes), there is no trap. The poor slowly get richer on their own.

• Their randomised trials (experiments that compare a randomly chosen group that gets a programme with one that does not) found that traps exist for some people and some situations, for example:

• nutrition in some settings;
• business capital for some people.
• But traps are not universal. So policy must be matched to each case, not applied the same way everywhere.

2g. Ways out of traps

• Big push: a large, coordinated wave of investment in many sectors at once, so each sector creates demand for the others. This answers Nurkse's demand-side circle (see growth-theories-business-cycles).
• External finance: foreign aid, loans or investment fill the gap left by low domestic saving.
• Asset transfers: for example, livestock plus training in "graduation" programmes. These lift the ultra-poor above the threshold in one step, after which they can keep earning on their own.

3. Causes of poverty in India

3a. Historical and growth causes

• Colonial legacy: de-industrialisation (the destruction of handicrafts by British factory goods) and stagnant farming left a weak base in 1947 (see colonial-economy-1947).
• Slow growth until 1980. Growth was well below what was needed to absorb a growing population.
• Population pressure on land and jobs. This is the Indian form of the Nelson trap.

3b. Labour and land causes

• Unemployment and disguised unemployment in farming.
• Disguised unemployment: more people work on a farm than are needed. If some leave, output does not fall, which means their marginal product is zero.

• Too many people share too little work, so each person earns very little.

• Small, fragmented holdings: plots are too small and scattered to use machines or get credit.

• Incomplete land reforms: ceiling laws were weakly enforced, so land stayed concentrated in a few hands.

3c. Market and shock causes

• Informal credit and debt traps (see 2c).
• Food inflation hits the poor hardest.
• A poor household may spend about 50% of its budget on food, and a rich one about 15% (illustrative figures).

• A 10% rise in food prices raises the poor family's cost of living by about 5%, but the rich family's by only 1.5%.

• Out-of-pocket health spending is a major reason households fall back into poverty (see 2d) [3].

• Drought and climate shocks wipe out crops and savings in rain-fed areas.

3d. Social and regional causes

• Social exclusion: the process by which individuals or groups are denied full participation in economic, social and political life because of caste, tribe, gender, disability or location.
• It denies them access to land, credit, markets and services.

• STs show the highest MPI incidence, followed by SCs.

• Regional concentration: Bihar, Jharkhand, UP, MP and Odisha.

• The same states also saw the largest falls in numbers. Between 2013-14 and 2022-23, 5.94 crore people escaped multidimensional poverty in UP, 3.77 crore in Bihar, 2.30 crore in MP and 1.87 crore in Rajasthan [2].

3e. Recent evidence that traps can be broken

• Multidimensional Poverty Index (MPI): a measure that counts deprivations in health, education and standard of living, not just income.
• India's multidimensional poverty headcount fell from 29.17% (2013-14) to 11.28% (2022-23), and about 24.82 crore people escaped poverty [2].

• The pace of decline was faster in 2015-16 to 2019-21 (10.66% a year) than in 2005-06 to 2015-16 (7.69% a year) [2].

• Income-based poverty (World Bank):

• Extreme poverty at $2.15 a day fell from 16.2% (2011-12) to 2.3% (2022-23), which lifted about 171 million people [4][5].
• At the revised $3.00 a day line, poverty fell from 27.1% (2011-12) to 5.3% (2022-23) [5].

4. NCERT evidence

4a. Rural distress (Class 11, Rural Development)

• Farm growth slowed to about 3% a year in 1991–2012.
• Agriculture and allied GVA (gross value added, the value of output minus the cost of inputs) grew only about 2% in 2023-24.
• Scholars blame falling public investment since 1991 in irrigation, roads and research.
• Other factors adding to farmer distress:
• inadequate infrastructure;
• scarce non-farm jobs;
• increasing casualisation (more workers hired day to day with no job security).

4b. Pakistan (Class 11, Comparative Development Experiences)

• Poverty was over 40% in the 1960s, fell to 25% in the 1980s, then rose again in recent decades.
• Why the gains did not last:
• Farm output depended on good harvests, not on steady technical change.
• Foreign exchange came from remittances (money sent home by workers abroad), volatile farm exports and foreign loans.
• These sources are unstable, so each bad year pushed people back into poverty.

4c. China (same chapter)

• Before the 1978 reforms, China had already:
• spread basic health services in rural areas;
• carried out land reforms;

• ensured more equal food distribution through communes.

• This human base (healthy, fed people with land) drove poverty reduction.

• After the reforms, handing plots to households "brought prosperity to a vast number of poor people".
• Lesson: health, nutrition and land came first, and growth then reached the poor. This matches the idea of pushing people above a trap threshold.

Prelims Hooks

• "A country is poor because it is poor" is Ragnar Nurkse's (1953) vicious circle of poverty.
• Supply-side circle: low income → low saving → low capital formation → low productivity → low income. Demand-side circle: low income → low purchasing power → small market → weak inducement to invest.
• Low-level equilibrium trap is Richard Nelson (1956). Rising per capita income triggers faster population growth, which pulls income back down.
• S-curve of poverty traps is linked to Banerjee and Duflo, Poor Economics (2011), Nobel 2019. Trap: yes for some, not for all.
• Disguised unemployment means the marginal product of extra workers is zero. Removing them does not reduce output.
• "Graduation" programmes transfer an asset (e.g. livestock) plus training to break a poverty trap.
• India's MPI headcount: 29.17% (2013-14) → 11.28% (2022-23); 24.82 crore escaped. The biggest fall in numbers was in UP (5.94 crore) [2].
• OOPE share of total health expenditure: 62.6% (2014-15) → 47.1% (2019-20) [3].
• World Bank: extreme poverty ($2.15/day) 16.2% (2011-12) → 2.3% (2022-23); at $3.00/day, 27.1% → 5.3% [4][5].
• Trap: STs (not SCs) show the highest MPI incidence among social groups.

Mains Points

• Circle vs trap and the policy choice. Nurkse's circle supports a big push for everyone. Banerjee-Duflo's evidence says traps exist only for some. So India needs targeted tools: graduation programmes for the ultra-poor, and nutrition and health cover where the threshold really binds. It should not rely only on blanket subsidies.
• Health shocks as the leading cause of falling back into poverty. OOPE is still near half of health spending (47.1% in 2019-20) [3]. This supports raising public health spending and insurance cover, so that one illness does not wipe out a household's assets.
• Rural distress and incomplete structural change. Farm growth fell to about 2% (2023-24), public investment has declined since 1991, and work has become more casual. The fix combines more public investment in farming with non-farm rural jobs and credit that lifts farmers out of the moneylender debt trap.
• Lessons from neighbours. China built health, land and food security before growth, and its poverty fell for good. Pakistan's gains rested on harvests and remittances and were reversed. India's sharp MPI fall (29.17% → 11.28%) [2] shows that improving basic services can break traps, but social exclusion (ST/SC) and the concentration of poverty in a few states remain.