Equity and redistribution of income and wealth

Equality means everyone has the same — for example, identical incomes. Equity means fairness, which is not necessarily the same as equality. Economists distinguish horizontal equity (treating those in the same situation alike — e.g. equal pay for equal work) from vertical equity (treating those in different situations differently — e.g. the rich paying proportionately more tax, the basis for redistribution). A distribution can therefore be equitable without being equal: paying a skilled surgeon more than an unskilled worker is unequal but may be regarded as fair, given the training and value of the work. Because fairness depends on views about what is deserved, equity is partly a value judgement, whereas equality is an objective measure.

There may be a trade-off between equity and efficiency because the policies used to make the distribution fairer can weaken incentives. Progressive taxes that take a high proportion of high incomes may discourage work, effort, saving and entrepreneurship, and may encourage tax avoidance or emigration. Generous means-tested benefits may discourage job search and create the poverty trap, where earning more brings little net gain. These effects can reduce output and efficiency. Conversely, an efficient free-market outcome can be highly inequitable, allocating income by purchasing power. So pursuing greater equity can come at the cost of efficiency, and vice versa — society must choose how to balance them.

However, the trade-off is not absolute. Some policies improve both equity and efficiency: spending on education, training and healthcare reduces inequality and raises human capital and productivity, boosting long-run output. Well-designed measures such as a negative income tax can reduce poverty while preserving work incentives. So although there is generally a trade-off between equity and efficiency, careful policy design can reduce it — meaning the conflict is real but not unavoidable for every policy.

Poverty can be absolute (unable to afford basic necessities) or relative (income well below the society's average). Reducing it is a key government objective, but the policies differ in effectiveness, cost and side effects.

Cash redistribution: benefits and taxes. Progressive taxation funds support for the poor and narrows after-tax incomes. Transfer payments raise the incomes of the poorest directly. Means-tested benefits are cheap and targeted, but cause stigma, low take-up and the poverty trap (withdrawn as income rises, discouraging work). Universal benefits avoid stigma and the poverty trap and have high take-up, but are expensive (paid to the rich too). A negative income tax guarantees a minimum income while ensuring earning more always pays — reducing the poverty trap — and universal basic income (UBI) does likewise unconditionally, though both are costly and UBI may reduce work incentives.

Labour-market and growth policies. A minimum wage raises the pay of low-paid workers but may cause some unemployment if set too high. Economic growth can reduce absolute poverty by raising incomes and employment — but its benefits may be unevenly distributed, doing little for relative poverty unless the gains reach the poor.

Investment in human capital. Spending on education, training and healthcare raises the productivity and earning power of the poor, tackling the root cause of poverty. Crucially, this reduces poverty and raises efficiency/growth, so it avoids the equity–efficiency trade-off that cash redistribution often involves — though it works slowly.

Judgement. No single policy is best; the most effective approach combines them and depends on whether the priority is absolute or relative poverty. In the short run, cash transfers (ideally via a negative income tax to avoid the poverty trap) most directly relieve poverty. But the most effective long-term policy is investment in education, training and healthcare, because it raises the poor's earning power sustainably and improves efficiency at the same time, attacking the cause rather than the symptom. The right mix also reflects a value judgement about how much equity to pursue and at what efficiency cost. The most defensible conclusion is that a government should combine well-designed cash support in the short run with human-capital investment for the long run, minimising the poverty trap and the equity–efficiency trade-off.

The country has eliminated absolute poverty — no one lacks basic necessities — which is consistent with being a developed, higher-income economy. However, 18% in relative poverty means nearly one in five people have incomes well below the society's average (e.g. below 60% of median income). Relative poverty reflects inequality and, unlike absolute poverty, persists even in rich countries because it is defined relative to others.

The poverty trap means that, under the current benefit system, when a low-income person earns more, they lose means-tested benefits and start paying tax, so their net income rises very little — a high effective marginal tax rate that discourages working more and keeps people stuck in low income.

A reform that could help is a negative income tax (or UBI): an integrated system where those below an income threshold receive a payment that is withdrawn only gradually as earnings rise, so earning more always raises net income. This reduces the poverty trap, preserving the incentive to work while still guaranteeing a minimum income — helping to lift people out of relative poverty without the disincentive of the current means-tested system. The main drawback is the cost, which must be financed by taxation.

A universal basic income (UBI) is an unconditional payment made to every citizen regardless of income or work. Whether it is the best way to reduce poverty must be weighed against its costs and alternatives.

The case for UBI. Because it is never withdrawn as income rises, UBI eliminates the poverty trap — earning more always raises net income, preserving work incentives at the margin (unlike means-tested benefits). It is simple to administer, carries no stigma and achieves high take-up (everyone receives it), so it reaches the poor effectively. It provides a guaranteed income floor and security, which is increasingly relevant where automation threatens jobs. By guaranteeing everyone a minimum, it directly reduces both absolute and relative poverty.

The case against UBI. Its biggest drawback is cost: paying a meaningful sum to everyone, including the rich, is extremely expensive and requires high taxes, which have an opportunity cost and may themselves harm incentives and growth. Because it is untargeted, much of the spending goes to people who do not need it, so for a given budget it may relieve poverty less than targeted support. A guaranteed income may also reduce the incentive to work for some, lowering labour supply and output. Alternatives — a negative income tax (which targets support to the poor while still avoiding the poverty trap), or investment in education, training and healthcare (which raises the poor's earning power and efficiency) — may reduce poverty more cost-effectively.

Judgement. UBI has genuine strengths — it removes the poverty trap, is simple and provides security — but it is not clearly the best way to reduce poverty, mainly because it is costly and untargeted. A negative income tax captures most of UBI's incentive advantages while being better targeted and cheaper, and human-capital investment tackles the root cause of poverty. The most defensible conclusion is that UBI is a promising but expensive option whose suitability depends on the level set and how it is financed; for most economies, a well-designed targeted system (e.g. negative income tax) combined with education spending is likely to reduce poverty more cost-effectively than a full UBI.