Redistribution, Reality, and the Limits of Equalisation

New Zealand’s economic debate often returns to a comforting proposition: that our problems are primarily distributional. If only we taxed more aggressively, including some form of capital gains or other wealth tax and redistributed more boldly, and  flattened the income and wealth curves, we could enjoy living standards matching those of the countries we like to compare ourselves with. It is an argument that resonates because inequality is visible and redistribution feels like a lever that can be pulled without changing the underlying machinery of the economy. But when we push the logic to its limits, the boundaries of redistribution become clear. It can change who gets what, but it cannot change how much there is to distribute. The size of the national income and wealth base remains the binding constraint.

To see this clearly, consider income first. Using full-time workers only, to avoid distortions from part-time hours, the average full-time income in New Zealand is roughly $90,700. The bottom half of full-time workers earn around $70,000 on average; the top half around $111,000. If we equalise all full-time incomes — an extreme and unrealistic scenario, but useful as a diagnostic — every full-time worker ends up on the mean: $90,700.

While the averages for the top and bottom full-time incomes seems to be closer together than perceptions about salary ranges in NZ, in reality fewer earners are in the very high and low income brackets with most earners clustered around the median.

Estimated full‑time earners by annual income band

Income bandApprox % of full‑time workers Approx number of workers
< $50k~12%~230,000
$50k–$60k~15%~285,000
$60k–$75k~23%~440,000
$75k–$90k~20%~380,000
$90k–$110k~18%~340,000
$110k–$140k~9%~170,000
> $140k~3%~55,000

The redistribution required for all earners to be equalised (as a demonstrative excercise) is substantial: the average gain for a bottom-half worker is about $20,600, and the average loss for a top-half worker is the same. This is a 23 percent shift of the average full-time income. Yet even after this flattening, New Zealand’s equalised income remains below the average full-time earnings in every peer economy we benchmark ourselves against. (Adjusted for PPP- Purchasing Power Parity, in $NZ). The centre of gravity is simply lower.

Table 1: Income Comparison Table
CountryAverage Full-Time Income ($NZ PPP adjusted)Difference vs Equalised NZNotes
New Zealand (equalised)$90,700After ±$20,600 redistribution
Australia~$110,000+ $19,000Higher productivity and capital intensity
Canada~$105,000+ $14,000Larger firms, deeper investment base
Ireland~$115,000+ $24,000Strong FDI and high-value sectors
Norway~$130,000+ $39,000High wages + sovereign wealth effects
Singapore~$120,000 (estimate)+ $29,000High-skill, high-capital economy

Even after eliminating all income inequality among full-time workers, New Zealand still sits $14,000–$39,000 below its peers. Redistribution changes the slope of the curve; it does not change the height of the curve. The average redistribution per earner — roughly $20,600 — is large by domestic standards but still insufficient to close the international gap.

A more realistic way to illustrate redistribution is to equalise after‑tax incomes rather than gross incomes. Because New Zealand’s tax and ACC system is progressive, equalising gross incomes does not produce equal living standards. The correct construct is therefore to equalise net disposable income, holding the tax schedule constant and adjusting only the transfer.

Using representative income bands, the table below shows the transfer required for each earner to reach a common after‑tax income of $69,000, which is the midpoint between the current average net incomes of the bottom and top halves of full‑time workers. This produces a clearer picture of the scale and direction of redistribution required to close the gap.

Table: Equalising After‑Tax Incomes to $69,000 Net

Gross IncomeNet Income Today (After Tax & ACC)Required Transfer to Reach $69,000 NetNet Income After EqualisationInterpretation
$50,000~$41,200+$27,800$69,000Gains $27.8k
$70,000~$55,800+$13,200$69,000Gains $13.2k
$100,000~$75,800–$6,800$69,000Contributes $6.8k
$150,000~$106,800–$37,800$69,000Contributes $37.8k
$200,000~$137,800–$68,800$69,000Contributes $68.8k

The pattern is intuitive: lower‑income earners require substantial top‑ups to reach the equalised level, while higher‑income earners contribute progressively larger amounts. What matters analytically is not the absolute numbers but the shape of the redistribution curve: the midpoint equalisation target produces a smooth transfer profile that mirrors the underlying income distribution.

This framing also makes clear that equalisation is not a marginal adjustment. Even in a simplified model, the transfers required to close the after‑tax gap between the bottom and top halves of the labour market are large relative to current disposable incomes. It is this scale, rather than the mechanics, that drives the political and economic feasibility questions.

The same logic applies to wealth. A household with $300,000 in net assets and one with $3 million face the same tax settings, because New Zealand does not tax wealth directly. The gap between them is not a function of the tax system; it is a function of the underlying wealth base. That is why the equalisation exercise required a transfer of nearly $1.0 trillion — around $550,000 per household — to flatten the distribution. And even after doing so, New Zealand’s equalised household wealth still sat below that of Australia, Canada, Ireland, Norway, and Singapore.

CountryAverage Household Wealth ($NZ)Difference vs Equalised NZNotes
New Zealand (equalised)$1.28MAfter ~$1T redistribution
Australia~$1.6M+ $320kVery high middle‑class wealth
Canada~$1.4M+ $120kHigher capital stock per household
Ireland~$1.5M+ $220kRapid wealth growth from high incomes
Norway~$2.2M**+ $920kSovereign wealth + high wages
Singapore~$1.9M (estimate)+ $620kHigh savings, high asset values

These comparisons reinforce the central point: redistribution can smooth the edges, but it cannot change the centre. The average New Zealand earner and the average New Zealand household start from a lower base than their peers, and no amount of internal reshuffling changes that fact. The constraint is structural. Our incomes are lower because our productivity is lower. Our wealth is lower because our capital base is smaller. Our firms are smaller, our investment flows thinner, our global integration weaker, and our economic engine less capable of generating the surpluses that other countries accumulate and reinvest.

Redistribution has a role — a vital one — in reducing hardship and ensuring fairness. But it is not the mechanism that will lift New Zealand to the income and wealth levels of its peers. The Path Back requires something more ambitious: a deliberate effort to build a larger, more productive, more capital-rich economy. Only then does redistribution become a choice made from strength rather than a substitute for it.

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