Analysis by Keith Rankin, 14 April 2026.
Despite the mega-commentary about the Israel-Iran war, and especially the United States’ participation in that war, almost nothing is being debated about how the war is being funded.
I’ll make some comments about Iran later. But we need to focus on the United States, which is by far the most profligate party to this war. And Israel is being funded, like a charismatic and entitled teenage brat, by its (American) sugar daddy.
Most of us should have noticed that, with the exception of new tariffs which are not a significant source of United States government revenue, there has been no move to raise taxes. (The President has clearly invoked the use of tariffs as means of leverage through extortion; though he doesn’t properly appreciate that these taxes are paid by American residents.) Nor has any explicit ‘war loan’ or ‘war bond’ been floated in Wall Street.
The United States is ‘printing money’ to fund the war. This expression is both pejorative and a misnomer. Because printing money is an unmentionable, it’s hardly ever mentioned! Though it should be, because it’s an important financial mechanism, and it is not as sinful as it’s made to sound.
‘Printing money’ is not a literal expression; actually printed (or photocopied) money, counterfeit money, is illegal. Printing money, a figurative moniker, is in fact the day-to-day business of banking, with billions of dollars printed every day (and a near-similar number of dollars unprinted). The technology of printing money is that of double-entry-bookkeeping. Money is a social technology, as is double-entry bookkeeping.
What matters most to us is the role of the central bank – the Reserve Bank – in creating new money. And in particular the relationship between the Reserve Bank and its privileged customers, most of which are governments’ Treasuries and commercial banks. Even more particularly, we are interested in the most highly privileged relationship of all, that between the United States Federal Treasury and the United States Federal Reserve Bank. This exceptional relationship arises because the United States Dollar is the world’s reserve currency.
The War
Here are two quotes from Al Jazeera’s This is America: War on Iran: Cost of weapons and shift in the nature of warfare, 1 April 2026
Richard Gaisford: “It’s a significant contribution being made to the US economy by the defence industries. The last figures we have were for 2024, and that showed that it generated [?] something near one trillion dollars …”.
This comment reflects a wide belief that money is made by economic activity, and that the United States makes money by making, among other things, military hardware and software. The reality, of course, is that the money is made first, and is then used to purchase such hardware and software.
Interviewer: ‘Who has got the means to keep fighting at those levels the longest?’ Kenneth Katzman (a former senior analyst on Iran at the US Congressional Research Service): “The US Dollar is the main reserve currency of the globe, which means that the United States basically has the capability to manufacture money. Your viewers may not understand the mechanics of it, but basically the United States can print money.” (Actually, not only the United States.)
He goes on to address the military asymmetry between Iran and the United States: “The United States is a 28-trillion-dollar economy; Iran is a 400-billion-dollar economy”. Here he is talking about each country’s capacity to produce goods and services; not its capacity to manufacture money. Any amount of money can be made by any country’s banking-government nexus, and at trivial cost.
The interviewer (New Zealand’s Anna Burns Francis), and the other panellist did not respond to that seemingly provocative comment about printing money; there was no further discussion about how the war is being financed, only about how much it is costing. Discussion about the mechanics (and constraints) of printing money would go against the grain that most of us are fed. The public is not supposed to know – and generally does not know – that money is itself costless and can be manufactured, at will, in smaller or larger quantities.
Kenneth Katzman’s comments are not controversial; they are a statement of fact that no economist would disagree with. All countries’ banking systems (of which the central government is a component) have the capacity to print money; indeed, the New Zealand system (and other countries’ systems) necessarily did so in 2020.
The United States has fewer constraints on printing money than do other countries, but not zero constraints.
We note that money, like all financial and financialised assets, is not wealth; it is claims on wealth. So, the affordability of money – in practice – is measured by the ability of the economy to meet those claims, in the event that those claims are presented. (Indeed, the world can afford an octillion dollars’ worth of financial claims if it can be 100% certain that those claims will not be exercised; will not be spent on goods or services. The current world is awash with massive private holdings of financialised assets which, for the most part will not be spent on anything other than other financial assets. In technical language, such money has a very low ‘velocity’.)
We note also that newly printed United States’ dollars permeate into New Zealand through exports, including New Zealand made supplies to America’s war industry; to the United States’ military/industrial complex, which includes the space industry.
How does a country fund a war by printing money?
There are two key issues: rationing, and responsiveness.
The liberal critique against governments’ printing money is a general claim that governments are untrustworthy and spendthrift. In the eighteenth century when the liberal critique emerged, one principal concern was government adventurism in the form of warfare. This classical liberal critique presents one consequence of such government largesse as inflation (extra spending coming up against finite resources), and also presents any instance of general price increases as a consequence of government largesse. When governments consume relatively more resources, then – through the catalyst of inflation – private households and businesses consume relatively less.
The classical liberal critique emphasises this rationing issue, known as crowding out; in doing so, that critique presumes that private spending on goods and services is, per se, more efficient than public sector spending and redistributive transfers. There are two parts to this rationing argument: first, private parties are deemed to better assess (compared to bureaucrats and politicians) which items of spending translate to greater utility (ie happiness); second that relatively more private spending can be classified as ‘investing’, meaning spending for future rather than for present happiness. (Neither of these two propositions is generally true.)
The second issue, less emphasised by classical liberals, is responsiveness or ‘supply elasticity’. Classical liberals tend to assume that spending enabled by printed money does not elicit new production; ie does not bring-about a supply response. While this is true by definition for a hyper-taut economy, for the most part, economies are not hyper-taut and are indeed responsive to additional spending.
In the present case of the United States, the Israel-Iran War – on the pro-Israel side – is being funded substantially by new money printed for the United States government by the United States federal banking system; in the public accounts, this shows up directly as a huge increase in the United States’ fiscal deficit.
While prices are rising faster in the United States than before, this increase in general prices would appear to be substantially due to the supply-side cost-impact of the war itself, and not by increased aggregate demand inside the United States and the countries the United States imports goods and services from.
The United States domestic economy is not as supply-elastic as it might have been, given what ICE is doing to that country’s labour force. Nevertheless, the United States’ economy has been sufficiently depressed that it is now able to increase output without much difficulty. Hence, extra United States’s government spending has not in itself caused consumer prices in the United States to rise. The present chokehold on imports – a result of the war – is however causing CPI-inflation in the United States and the rest of the world. Prior domestic underemployment is one reason why money-printing may not be inflationary.
The second component of a country’s economic responsiveness to wads of newly printed money is that much production can be outsourced to the rest of the world. Thus, United States’ imports increase, the United States’ current account deficit increases, and the rest of the underemployed world gets to benefit from this as an economic stimulus. So, if the New Zealand banking-government nexus refuses to print money as a form of stimulus, the present Trump-printed money does create an alternative stimulus in New Zealand.
Certainly, New Zealand has very high visible and hidden unemployment, so (at present) is easily able to respond to the Trump stimulus. On that basis, New Zealand’s economic growth this year may not be as slow as is widely anticipated; though domestic confidence – in itself, a form of stimulus – may be countering the stimulus coming from the United States. In New Zealand too, any rise in CPI-inflation will be almost entirely due to the global supply chokeholds, and not to the American president’s money printing largesse.
Essentially, the United States is funding its war through its twin deficits: the United States fiscal deficit, and the United States current account deficit. The war is being funded through increased utilisation of underemployed resources throughout the world. In New Zealand’s case, we can see this easily and directly, by observing New Zealand’s increased exports to the United States.
How easily can other countries print money?
Technically, it’s as easy to print money in New Zealand as it is for the United States. However, the New Zealand dollar is not a global reserve currency, so a flood of new New Zealand dollars into the global economy is likely to generate financial risk; or at least perceptions of financial risk. ‘Investors’ – that is, financial traders – out there most likely would be more cautious about holding large quantities of New Zealand dollars (or $NZ assets) than they would be about holding large quantities of United States dollars. That caution generates an exchange rate risk; a risk that would be communicated to financial-asset-holders by the New York based rating agencies such as Standard and Poors.
When the exchange-rate risk is not widely seen as a matter of concern, New Zealand benefits mainly through its routinely-high current account deficit; that is, just the same way as the United States is able to benefit from printing money and enjoying the economic bounty of the world.
If the exchange rate risk becomes a concern however, the world would discount New Zealand dollar assets, and New Zealand would experience high levels of domestic inflation; that is, higher inflation than most other countries. The resulting low New Zealand dollar would confer a ‘competitive advantage’ on New Zealand; the current account deficit would close, exports increase, and reduced imports would create an increased demand for New Zealand- made goods and services.
The issue then becomes how responsive (ie supply elastic) the New Zealand economy is. If the domestic economy is able to respond to these new circumstances (which is the more common experience of other countries), then New Zealand would recover and soon prosper. The alternative is that New Zealand would go into an inflationary tailspin; that is, if its productive system is so hamstrung that it cannot respond to the stimulus of a low dollar exchange rate. One bad sign is over-dependence (as distinct from over-reliance) on imports. A dependent economy cannot switch away from imports. A country which relies on imports by choice, because imports are easily funded by exports, can usually pivot – if required to do so – towards more ‘tradable production’.
So, New Zealand can print money too, though printing in the proportion that the United States does certainly would be unadvisable. However, if a country overprints money, the normal situation is that the extra money just sits there in the banking system. (The brief real estate boom of 2021/22 has been widely attributed to excessive printed money stimulating a process of real estate speculation; though the unique circumstances of that few months – including labour and capital pandemic lockdowns – have not been properly researched. The government could easily have borrowed and then parked that money, but chose not to.)
Generally, the rest of the world is accommodating when some countries print more money (though not when all countries print too much money). The world has been very responsive to the United States for the entirety of post-WW2 history; it was American spending of new money that drove the economic growth of the capitalist world for 80 years.
The present US money printing to fund a globally-significant regional-war can be expected, sooner or later, to encounter an inflationary wall of its own making. The consequences of this war are to make the world economy much less responsive (ie are breaking the world’s economy) just as the American military-industrial complex – indeed the world’s expanding military-industrial complexes – are placing so many extra demands on the world’s economic environments.
War funding under pressure
Countries’ invaded or otherwise attacked on the perception that they are ‘easy meat’ tend to be much more capable of defending themselves than is widely understood. Their monetary systems are not integrated into the orthodox channels of the wider capitalist system; but their domestic monies work to keep domestic economies fully employed while on a war-footing. Yes, Iran will be printing money, and Iranians will be facing substantial visible and suppressed inflation. For Iran, that monetary process is a necessary part of its own defence. Money printing facilitates both necessary rationing in favour of the public sector, and also necessarily pushes the production system to its limits.
War times, historically, have shown that our economic systems are generally much more responsive than we presume them to be. Surprisingly often, the bullies neither win nor even achieve a limited range of objectives. Syria may be coming right today, despite rather than because of the nation which set off that 2010s’ war; a war which cruelly sandwiched the Syrian people between foreign bullies and a consequently more oppressive domestic tyranny.
We note that, when the United Kingdom was under threat during the first years of World War Two, it was able to import much on credit – especially from the United States, which was then a neutral country. China has played a large role in facilitating the United States’ more recent wars, through its current account surpluses. This time China will be helping to fund Iran’s war; as well as accommodating the United States through its ongoing – almost infamous – trade relationship with that country.
Indeed, when the Israel-US-Iran War is eventually over, it will be China’s version of the Marshall Plan which will revive the degraded world economy; part of that revival will be to write-off war debts, just as the United States – through plenty of printed money – eventually accommodated Germany’s reparations bill after World War One, and the West’s war debts after World War Two.
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Keith Rankin (keith at rankin dot nz), trained as an economic historian, is a retired lecturer in Economics and Statistics. He lives in Auckland, New Zealand.
