The Painkiller That Became the Disease: Why Iceland Cannot Let Go of Indexation

Every few years, Iceland decides to abolish verðtrygging. Politicians campaign on it. Committees are convened. Petitions gather signatures — at one point around fifteen percent of the electorate signed one, and polls have put public support for abolition as high as eighty percent. A prime minister once built an entire government on the promise. And every few years, verðtrygging survives, untouched, and quietly resumes adding the nation’s inflation to the nation’s mortgage balances.

An institution that unpopular does not survive for forty-five years by accident. It survives because it is doing something for someone — and the first step to understanding Iceland’s cost of capital, its chronic inflation, and its strange monetary paralysis is to be honest about what verðtrygging actually does, for whom, and why every attempt to remove it has failed. This is not a story about a bad policy nobody got around to fixing. It is a story about a policy that works so well for the people who matter that it has made itself impossible to remove.

What it is, in one paragraph

Verðtrygging is the indexation of financial obligations to the consumer price index. In practice, for most Icelanders, it means the mortgage: a loan whose outstanding principal is increased each month by the rate of inflation. These are negatively amortising instruments — when inflation runs above a few percent, your early payments do not even cover the inflation added to the balance, so the amount you owe grows for years even as you pay every month. The interest rate is quoted low and real, because the inflation compensation is handled separately, by inflating the principal itself. For decades these loans were the overwhelming majority of the Icelandic mortgage market, and indexed instruments remain the backbone of long-term lending and of the pension system that funds much of it.

Why Iceland built it: a gesture of defeat

To understand why it won’t leave, you have to understand why it arrived — and the honest version is not flattering.

The 1970s in Iceland were a decade of near-hyperinflation, with the money supply roughly doubling every two years and inflation running far above thirty percent. In that environment, nominal lending collapses, because no rational person lends money for twenty-five years in a currency that loses half its value every twenty-four months. But the deeper damage was distributional. As the current Governor of the Central Bank has described it, the 1970s produced one of the largest transfers of wealth in Icelandic history — from depositors and pension funds to borrowers, and from the old to the young. Inflation was quietly confiscating the savings of the elderly and handing the proceeds to anyone with a nominal loan, while subsidising the large firms that carried the most debt.

Verðtrygging, introduced in 1979 through the Ólafslög — Ólafur Jóhannesson’s Law, Act 13/1979 — was the response. It linked savings and loans to the price index so that lenders’ capital could no longer be inflated away. And here is the sentence that explains everything that followed: the Governor himself calls indexation, in some respects, a gesture of defeat — more an adaptation to circumstances that allowed the economy to keep functioning during an episode of high inflation than a considered cure for it.

That is the origin, stated plainly. Iceland did not adopt verðtrygging because it had a theory that indexation would defeat inflation. It adopted it because it had stopped believing it could defeat inflation and needed a way to live with it — a way for long-term credit and pension saving to exist at all inside a currency nobody trusted. Verðtrygging was a prosthetic for a broken monetary system. In 1979, that was a real and defensible achievement. The tragedy is what a prosthetic becomes when you never repair the limb.

The two jobs — one real, one imaginary

Ask whether verðtrygging “worked” and you immediately hit an equivocation that keeps the entire national debate running in circles. Because indexation was assigned two jobs, and they have opposite verdicts.

The real job: protect the lender’s capital. Verdict: flawless success. By construction, an indexed loan preserves the real value of the principal no matter what inflation does. The saver, the pension fund, the bank — all are made whole in real terms, automatically, forever. On its own terms this job is not merely done well; it is done perfectly, mechanically, by definition. Remember this, because it is the whole reason the institution cannot be killed.

The imaginary job: help end inflation. Verdict: it never could, and it never did. There is a durable folk-belief in Iceland that indexation helped stop the hyperinflation of the 1970s. The most careful academic examination of the instrument dismisses this directly, noting that such claims rest on high-level macroeconomic interpretations that fail scientific scrutiny. And the reason it could never have done this job is not an accident of implementation. It is the mechanism itself. Indexation does not reduce inflation. It makes inflation painless enough to tolerate for exactly the people who would otherwise be forced to stop it.

That sentence is the heart of the matter, so let me make the mechanism explicit.

Why it entrenches the very inflation it was built to survive

Consider who feels inflation, and when, in two different worlds.

In a non-indexed economy, when inflation rises, nominal interest rates and monthly mortgage payments rise with it, immediately and visibly. The mortgaged household feels the pain this month, in cash, and a large and vocal constituency forms with a simple demand: make it stop. Inflation is self-limiting, because it hurts powerful people in real time, and they punish the politicians who allow it. The pain is the immune system.

In Iceland’s indexed economy, that immune system has been switched off. When inflation rises, the indexed mortgage does not spike your monthly payment — it adds the inflation to your principal, spreading the cost across decades and hiding it almost entirely from this month’s cash flow. Your balance swells, but your payment barely moves. The pain is deferred, diffused, and made nearly invisible. And the perverse detail that closes the trap: when the Central Bank raises nominal rates to fight inflation, households facing a payment shock on their non-indexed loans refinance into indexed ones to restore their monthly cash flow — voluntarily fleeing toward the instrument that conceals the very pain that would otherwise generate the demand to end inflation.

So the constituency that would normally scream stop never assembles. Households are anaesthetised in the short run; lenders are protected in the long run; and the pension funds — the largest pool of capital in the country — hold vast quantities of indexed assets that earn a guaranteed real return on top of whatever inflation delivers, leaving them structurally indifferent to price stability. Nobody with power feels acute pain from inflation in real time. And a disease that hurts no one acutely is never cured.

This is the uncomfortable core. Verðtrygging did not cause Iceland’s inflation. It did something subtler and more permanent: it removed the pain that would have forced inflation’s cure. It is not a failed inflation medicine. It is a successful inflation painkiller — and the painkiller is precisely why the wound has never healed. A country that cannot feel its inflation will never be made to end it.

Now the real question: why won’t it go away?

Everything above explains why verðtrygging is harmful in slow motion. It does not yet explain why a democracy that overwhelmingly dislikes it cannot remove it. That requires naming the interests, and there are four locks on the door.

Lock one: it works perfectly for whoever holds the debt. The institutions on the lender’s side of every indexed loan — the pension funds above all, and the banks — have their capital guaranteed in real terms. They did not ask for a compromise; they got a perfect instrument. The pension funds hold indexed bonds as core assets and are legally required to earn a real return that indexation delivers automatically. Ask the largest and most powerful financial bloc in the country to give up an instrument that guarantees its returns regardless of the monetary environment, and you will meet the immovable object of Icelandic politics. The same concentration of savings that sets the cost of capital also owns the machinery of indexation. They are not going to vote to make their own lives harder.

Lock two: the outstanding stock makes sudden abolition genuinely dangerous. This is the honest constraint, and it is the strongest argument the defenders have. There are trillions of krónur in existing indexed obligations on both sides of the national balance sheet. You cannot simply void the index tomorrow without imposing enormous, arbitrary transfers — wiping out pension assets that belong to the same households you are trying to help, or handing windfalls unevenly across borrowers. Any responsible abolition must be phased: banning new indexed issuance, letting the existing stock run off over decades. That is doable — but it is slow, undramatic, and yields no victory a politician can point to before the next election. The difficulty is real, and it is also a perfect alibi for doing nothing.

Lock three: the “necessity, not choice” defence. The financial sector has argued for decades that indexation is not a choice but a necessity, forced on Iceland by its history of inflation and the smallness of its currency. There is a kernel of truth here — a micro-currency with a weak nominal anchor genuinely does struggle to sustain long-term nominal lending. But notice how the argument functions in practice: it is circular. Indexation exists because inflation is chronic; inflation is chronic partly because indexation removed the pressure to end it; therefore we must keep indexation because inflation is chronic. The necessity defence quietly assumes the disease is permanent in order to justify keeping the painkiller that helps make it permanent. It is the most sophisticated of the four locks precisely because it dresses surrender as realism.

Lock four: the graveyard of failed attempts, which teaches learned helplessness. This is the lock that compounds all the others. Iceland has tried. In the aftermath of 2008, over-indebtedness became one of the country’s defining political issues; consumer associations sued, arguing the loans violated European consumer-protection law, and the fight went all the way to the EFTA Court. A politician named Sigmundur Davíð Gunnlaugsson built an entire campaign on ending indexation and household debt, won the premiership in 2013 — and left office in 2016 with verðtrygging fully intact. If a prime minister with a popular mandate and a national mood of fury at the financial system could not remove it, the lesson the political class absorbs is not “try harder.” It is “this cannot be done.” Every failed attempt makes the next one less likely, because it teaches everyone that the door is locked — and a belief in impossibility is the most effective lock of all.

The connection people miss

Verðtrygging is usually discussed as a consumer-protection issue — unfair mortgages, hidden costs, over-indebted households. That framing is true but far too small. Indexation is the hinge on which three of Iceland’s largest economic problems turn at once.

It entrenches inflation, by removing the domestic pain that would generate demand for stability. It defeats monetary policy, because a central bank whose rate hikes are absorbed into principal rather than payments must push rates higher and hold them longer to achieve any effect — part of why Iceland runs punishing policy rates while its inflation still refuses to settle. And it props up the cost of capital, because the same indexed instruments let the dominant pool of savings extract a guaranteed real return regardless of conditions, keeping the real price of money high across the whole economy. These are not three separate problems. They are three faces of one institution.

Which means the reverse is also true, and this is the hopeful part. Abolishing verðtrygging — phased, careful, over years — would do more than clean up the mortgage market. It would switch the inflation immune system back on, restoring the domestic constituency for price stability that indexation anaesthetised. It would give the Central Bank a functioning transmission mechanism. And it would begin to loosen the real-return floor that makes Icelandic capital so expensive. One reform, three foundations.

The uncomfortable conclusion

Iceland indexes because in 1979 it surrendered to inflation and built a machine to live with it. The machine works — that is the problem. It works so well at protecting the people who hold the debt that it has removed everyone’s incentive to fix the currency it was meant to compensate for, and it has taught a generation of politicians that the machine cannot be switched off.

But it can. Nothing about verðtrygging is a law of nature. It is Act 38/2001 and a Central Bank regulation — ordinary Icelandic legislation, amendable by Icelanders, requiring no treaty and no foreign permission. The instrument was a rational response to the emergency of 1979. Forty-five years later, keeping it is no longer realism; it is habit wearing the mask of realism, defended by the institutions it enriches and excused by the difficulty of the very reform that would set the country free.

The question is not whether Iceland can let go of indexation. It plainly can. The question is whether it is willing to feel its own inflation again — to accept the short, sharp, visible pain that the painkiller has spared it for two generations — in exchange for finally curing the disease. Every serious ambition this country holds, from a lower cost of capital to a credible currency to a knowledge economy that can raise money at a fair price, runs through that single decision. The painkiller became the disease. Setting it down is the beginning of the cure.

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Sources and notes

• Origin and framing. The 1979 Ólafslög (Act 13/1979) introduced comprehensive CPI indexation of savings and loans following the 1970s inflation. The characterisation of indexation as “a gesture of defeat” and the account of the 1970s as one of Iceland’s largest intergenerational wealth transfers are from Governor Ásgeir Jónsson’s address to the 62nd Annual Meeting of the Central Bank of Iceland (2023).
• Mechanism and market share. The description of verðtryggð lán as negatively amortising CPI-linked loans, and their historical dominance of the Icelandic mortgage market, draws on Mallett, “An Examination of the Effect on the Icelandic Banking System of Verðtryggð Lán” (arXiv:1302.4112, 2013), which also rebuts the claim that indexation helped end the hyperinflation.
• Legal challenge and over-indebtedness. The post-2008 over-indebtedness crisis, the consumer-protection litigation, and the EFTA Court proceedings are documented in Méndez-Pinedo, “Indexation of Consumer and Mortgage Credit in Iceland” (International Journal of Finance & Banking Studies, 2014) and related EFTA Court materials.
• Political history. Sigmundur Davíð Gunnlaugsson campaigned on indexation reform and household debt relief and served as Prime Minister 2013–2016; indexation remained in force. Petition and polling figures on public support for abolition are from contemporaneous reporting (Reykjavík Grapevine and others) and should be treated as indicative.
• Seigniorage note. The observation that indexation sharply reduced Icelandic government revenue from money creation after 1979 is from the IMF Staff Papers study “Monetary Indexation and Revenues from Money Creation: The Case of Iceland” (1990).
• Caveats. The central political-economy claim of this essay — that indexation persists because it removes the real-time pain that would generate demand to end inflation — is an interpretation, argued from mechanism, not a measured quantity. It is offered as the most coherent explanation of the persistence puzzle, not as settled empirical fact. The competing view — that indexation is a genuine necessity for a micro-currency and that its removal would destabilise existing balance sheets — is stated in the essay and deserves a fair hearing. Current figures (policy rates, inflation, indexed-loan share) move over time and should be verified against Central Bank of Iceland and Statistics Iceland data before publication.