This piece was coauthored with Arjun Jayadev and Ahilan Kardirgamar. It was first published in Project Syndicate, and republished in The Daily FT in Sri Lanka.
Sri Lanka is currently undergoing its worst economic crisis since Independence. The austerity measures imposed as a part of the ongoing IMF program – following the island nation’s first ever default on its external debt in 2022 – have led to poverty doubling to over 25 percent; according to the World Bank, poverty will not return to pre-crises levels until 2034. The economy is only just beginning to recover from a deep depression – in per capita terms, real GDP levels will not recover to 2018 levels until 2026, if then. A generation is being lost to malnutrition, school dropouts and youth unemployment. A country that a few decades ago was considered a model development state with enviable human development indicators is now being forced to dismantle its social welfare system.
Yet in the midst of this crisis, Sri Lanka is living with one of the strangest paradoxes in global monetary policy: extraordinarily high interest rates in an economy grappling with deflation. For much of the last three years, the country has had some of the highest real interest rates in the world despite being in a serious macroeconomic crisis, struggling with debt distress, and facing strong disinflationary forces.
The Central Bank’s latest Monetary Policy Report (August 2025) acknowledged the depth of disinflation. Headline inflation fell below the target of 5 percent for three consecutive quarters, driven largely by energy and food prices. Most recent data suggests that inflation moved from negative territory to slightly above zero (still well below its target). And yet, nominal rates are stuck at a punishing 8 percent.
By the conventional logic of monetary policy, none of this makes sense.
Economics textbooks describe monetary policy in terms of a “Taylor rule” linking the policy rate to the level of inflation and the output gap, or difference between actual output and an estimate of potential output. When output falls short of potential or inflation is below target, the central bank should choose a lower interest rate; when output is above potential or inflation is above target, the central bank should choose a higher rate. The hard cases are when these signals point in opposite directions.
Sri Lanka today is not a hard case. Inflation well below target and a depressed real economy are both textbook signals to cut. And Sri Lanka’s inflation is not even trending upward. Meanwhile, the latest version of the Bank’s own monetary policy report shows Sri Lanka further below target now than a year ago. And since 2017, the share of the country’s population that is employed has fallen by a full four points, according to the World Bank – a sure sign of an economy operating below potential. And that is only the tip of the iceberg, where the informal sector accounting for more than sixty percent of the labour force is devastated without affordable credit for production. The choice to maintain current high interest rates under these conditions is impossible to square with any conventional understanding of monetary policy.
Debt Dynamics and the Case for Cuts
Beyond the macro textbook case, there is a more pragmatic argument for lower rates: debt sustainability. The change in a government’s debt-GDP ratio does depend not just on current expenditure and revenue. It also depends on economic growth and interest on debt accumulated from the past. The larger the debt ratio currently is, the stronger the effect of those factors, relative to current budget choices.
With public debt close to 100 percent of GDP, debt sustainability in Sri Lanka is highly sensitive to interest costs. A few points difference on interest rates can shift the debt trajectory from a stable or falling debt ratio to one that is explosively growing.
The August 2025 report notes that credit to the private sector has expanded by 16 percent year-on-year despite deflation, but government borrowing costs remain elevated. Treasury bill yields, though down somewhat after the May rate cut, still hover at levels far above inflation. Maintaining real rates in the double digits in an economy with falling prices is not “prudence”—it is a form of fiscal self-harm-and a serious missed opportunity for helping a population that has been waterboarded by austerity over the past three years.
Countries in debt crises have long known that the denominator of debt to GDP ratios (nominal GDP) matters as much as the numerator. Consider the case of Greece in the years after the euro crisis. After years of rising debt, the Greek government was forced to turn to brutal austerity and cost-cutting, and managed to reduce its total debt by 15 billion euros – an amount equal to nearly 10 percent of GDP. Yet during this same period, the debt-GDP ratio actually rose by some 30 points, because Greek GDP fell so much faster. The Greek case is extreme, but the point is a general one: austerity in the name of fiscal sustainability can be self-defeating, if it destroys the conditions for economic growth.
This is the risk that Sri Lanka is currently running. High rates in a deflationary economy are the worst of both worlds: they raise interest payments while suppressing growth. By contrast, lower rates would both reduce financing costs directly and support growth.
Inflation Comes from Abroad, Not from Home
So what does the central bank think it is doing? The monetary policy report is striking in its near-exclusive focus on “price stability,” as if Sri Lanka were the United States or the Eurozone. Yet around 40 percent of Sri Lanka’s consumer basket is food, with a large additional share being energy. These prices depend more on global conditions and supply shocks than domestic demand. Raising or lowering policy rates will have little effect here. For a small open economy like Sri Lanka, inflation targeting in the textbook sense is often an imported delusion.
A more realistic goal for the central bank in a small open economy is external balance. Appropriate monetary policy can help stabilize the balance of payments, and avoid destabilizing swings in capital flows. But if the Bank’s true concern is the external sector, its public statements do a poor job communicating this.
More importantly, the case for high rates looks equally questionable from this point of view. The central bank projects a current account surplus in 2025, meaning the country is accumulating rather than losing foreign exchange. This is a continuation of large positive balances in 2023 and 2024, thanks to strong remittances and rising tourism receipts. Gross official foreign exchange reserves climbed to over USD 6 billion in the first half of the year, despite debt service outflows. After a large devaluation in early 2022, the rupee has been stable recently, with no sign of reluctance by foreign investors to hold Sri Lankan assets.
In short: there is no evidence for an external financing crisis that could justify the Bank’s punishingly high domestic interest rates. To the contrary, the surplus liquidity in money markets reported by the Central Bank suggests that external conditions are ripe for further easing.
Misplaced Caution
The Monetary Policy Report cites “uncertainty around global demand” as a reason for caution. But this makes no sense: What matters for monetary policy is the level of rates, not the change in them. An interest rate of 8 percent is no less discouraging for investment just because rates were even higher a year ago. The central bank is like a driver on an open highway who insists that they need to drive well below the speed limit now, because if there is bad traffic ahead, they will want to speed up.
Sri Lanka’s monetary policy is clearly aimed less at economic conditions on the ground than at pleasing external actors — the IMF, World Bank and its other creditors. The high interest rates and increasing foreign reserves signal a willingness to place the interest of foreign creditors ahead of the country’s own people and businesses. But if super-tight money triggers a renewed crisis and another default – as is possible – it won’t even end up helping the creditors. .
A Policy for Recovery, Not Austerity
There is little evidence that high rates are serving their stated purpose of stabilizing inflation (missing on the downside is as bad as missing on the upside) or protecting the external balance. They are, however, choking domestic recovery and worsening the government’s already fragile finances.
It is not too late for a change in direction. After several years of flat or falling output, Sri Lanka’s economy grew 4.8 percent in the first quarter of 2025, with rebounds in industry and services. To be sure, this is to some extent just a bounce back from the depressed conditions over the last few years. But it suggests that with appropriate policy, renewed growth is possible. Monetary restraint risks instead prolonging the crisis.
Conclusion
Sri Lanka needs a monetary policy for recovery, not austerity. With inflation below target, external accounts stable, and growth still tentative, holding rates at 8 percent is indefensible. The Central Bank should cut immediately, while keeping an eye on capital flight – which, unlike inflation, is a genuine danger from cutting too fast. Doing so would not only support economic revival but also improve the country’s fiscal trajectory—helping Sri Lanka climb out of its debt trap, rather than prolonging it.
History is clear: countries escape debt traps through growth, not through endless austerity. Sri Lanka cannot grow if credit is starved and government finances are bled by high interest bills. This is a critical moment to think about a pivot.
