Iceland referendum on EU talks tests economic case for euro adoption

On 29 August, Iceland's 400,000 citizens will vote in a referendum on whether the government should resume negotiations to join the European Union. The question is deceptively simple. Iceland already belongs to the European Economic Area, the Schengen Area and the European Free Trade Association. It applies EU financial regulations, enjoys free movement of goods, services, capital and people, and its citizens travel across most of Europe without passport checks. What it lacks is a seat at the table where the rules are made.

What the referendum actually decides

A yes vote would not take Iceland into the EU. It would only mandate the government to reopen accession talks, which were suspended in 2013 after a change of government. Any eventual treaty would require a second referendum. But the economics of the choice have been laid out starkly in a recent analysis by Willem H. Buiter, former chief economist at Citibank and former member of the Bank of England's Monetary Policy Committee, and Anne C. Sibert, professor emerita at Birkbeck, University of London. Their argument, published in International Politics and Society, centres on a single claim: for a country of Iceland's size, keeping an independent currency makes no economic sense.

The economic case for the euro: lessons from 2008

The 2008 banking collapse is the ghost at the feast. Iceland's three major banks held assets worth roughly nine times GDP before they failed. The Central Bank of Iceland, issuing its own currency, could not act as an effective lender of last resort because the banks' liabilities were overwhelmingly denominated in foreign currency. When liquidity evaporated, the central bank was powerless. The krona crashed, and the economy contracted sharply. Buiter and Sibert argue that had Iceland been in the eurozone, the Eurosystem could have provided euro-denominated liquidity, preventing the systemic failure. The European Stability Mechanism (ESM), which offers low-cost loans, bank recapitalisation support and precautionary credit lines, would also have been available.

That argument rests on a specific mechanism. A central bank can only act as lender and market maker of last resort if the assets it must buy or the loans it must make are denominated in its own currency. If the banking system is largely foreign-currency funded, that capacity disappears. The authors describe this as the canonical failure of 2008, and they contend the structural vulnerability has not vanished.

Banking system vulnerabilities persist despite reforms

Iceland's banking sector has shrunk dramatically. Assets are now about 127 per cent of GDP, a fraction of the pre-crisis peak. Regulation is far stricter. Capital controls, imposed in 2008, were lifted in 2017. Yet the banks still carry significant long-term liabilities in foreign currency. Without capital controls, a sudden stop or a run could again leave the central bank unable to stem the outflow. The authors note that the Eurosystem's backstop would eliminate this specific tail risk. For a country with an internationally active banking system, they argue, that alone may be sufficient reason to join.

The counter-argument is familiar. Adopting the euro means surrendering monetary policy and the exchange rate as a shock absorber. If a negative shock hits Iceland, a collapse in fish prices, a tourism downturn, a volcanic eruption, a floating krona can depreciate, lowering real wages instantly. Inside the eurozone, nominal wages must adjust downward, a slower and more painful process that can distort relative prices. The eurozone's one-size-fits-all interest rate may not suit Iceland if its business cycle is not synchronised with the broader currency area.

Loss of monetary autonomy versus exchange-rate risk

Buiter and Sibert do not dismiss this. They acknowledge the textbook case for a flexible exchange rate. But they argue that shocks are not independent of the exchange-rate regime. Euro membership, by reducing financial instability shocks, shrinks the very volatility that the exchange rate is supposed to absorb. Moreover, very small economies are uniquely exposed to currency misalignments driven by bubbles, herd behaviour or irrational exuberance. They have little capacity to offset such movements. Denmark and Sweden, the two Nordic EU members outside the euro, have populations 15 and 23 times larger than Iceland's, and GDPs 12 and 18 times larger. Scale matters.

The authors also point to a feedback loop. If Iceland adopts the euro, its economy may gradually become more flexible and more correlated with the eurozone, because the currency union itself encourages integration. Past data on business-cycle correlation, they suggest, underestimates the future benefits of membership.

The fishing dispute and negotiating leverage

Politics, not economics, may decide the outcome. The Common Fisheries Policy (CFP) is the single most toxic issue. Iceland's fishing industry is a pillar of the economy and a symbol of national sovereignty. EU membership would subject Iceland to fishing quotas, shared access to waters and Brussels-managed conservation rules. Coastal communities fear significant losses. The Common Agricultural Policy is a lesser irritant, Iceland's agriculture is small, but the CFP is a potential deal-breaker.

The authors argue that Iceland has bargaining power. Its strategic location in the North Atlantic, its fish stocks and its energy resources make it valuable to the EU. They note suggestions that accession negotiations could yield a CFP exemption, though no such promise exists. The European Council (where each member state holds a veto on sensitive matters) would have to approve any special arrangement. Iceland's vote would carry equal weight to Germany's or France's on unanimity questions, a rare lever for a country of its size.

What the finance ministry's own report concludes

A recent report from Iceland's finance ministry, cited by Buiter and Sibert, takes a more cautious view. It praises the stabilising role of the independent exchange rate after 2008, noting how depreciation helped the economy adjust. The authors' rejoinder is blunt: that shock might never have occurred had Iceland been in the eurozone. They also argue that as long as public-sector debt remains modest, it stood at roughly 60 per cent of GDP before the pandemic and has risen since, fiscal policy can substitute for the lost monetary instrument. The ministry's report does not dispute the banking-system vulnerability; it weighs it differently.

A decision with consequences beyond Iceland

The referendum is advisory. A yes vote would not bind the government, but a no vote would likely shelve the issue for years. Opinion polls have fluctuated. Support for EU membership has historically hovered around one-third, with a spike after the 2008 crash that faded as the economy recovered. The current government, a coalition of the Independence Party, the Progressive Party and the Left-Green Movement, is divided. The Independence Party opposes restarting talks; the other two favour a yes vote.