Sri Lanka’s Interest Rate Trap

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.

 

Endless austerity, state and local edition

Brian Nichols of the essential Employ America has a useful, if depressing, roundup of the coming wave of state-local austerity. Some highlights: Ohio, Nevada and Pennsylvania have already announced hiring freezes; Ohio is also looking at a 20 percent across the board cut in state spending, while Virginia has canceled planned raises for teachers. Many cities, including New York, St. Paul and New Orleans, are laying off public employees. And as I noted in my last post, New York  State is planning to slash $400 million from the hospitals at the front line of the crisis.

This isn’t new. One of the many drawbacks of American federalism is that state and local government spending — which includes the great majority of public sevices that people use on a day to day basis — is distinctly procyclical. Following the 2007-008 crisis, austerity at the state and local level more than offset stimulus at the federal level. And it lasted much longer than the recession itself.

In fact, as my colleague Amanda Page-Hoongrajok points out, inflation-adjusted state and local final expenditure did not return to its 2009 level until 2019.1 On a per-capita basis, real state and local final expenditure is 5 percent lower today than it was at the bottom of the last recession.

Source

As we face the rising wave of public-service cutbacks, we need to be fighting on all levels. We need to demand a massive package of aid to state and local govrnments as part of Stimulus IV. We need to be pushing the Fed to do more to support municipal finances. We need to keep the pressure up on mayors and governors not to throw their hands up and wait for the feds, but to be creative in working around their fiscal constraints.2 And also, we need to keep in mind: As far as state and local spending is concerned, the Great Recession never ended.

In The American Prospect: The Collapse of Austerity Economics

(This review is coauthored with Arjun Jayadev, and appears in the Fall 2019 issue of the The American Prospect. The version below includes a few passages that were cut from the published version for space reasons.)

Review of Albert Alesina, Carlo Faverro and Francesco Giavazzi,  Austerity: When It Works and When It Doesn’t
With Arjun Jayadev

A decade ago, Alberto Alesina was one of the most influential economists in the world. His theory of ‘expansionary austerity’ – the paradoxical notion that reducing public expenditure would lead to an increase in economic activity — was one of the hottest ideas in macroeconomics. He claimed to have shown that government surpluses could actually boost growth, but only if they were achieved via spending cuts rather than tax increases. At a moment when many governments were seeking Keynesian remedies to a global recession, his work (along with fellow Harvard economist Silvia Ardagna) reassured conservatives that there was no conflict between keeping up demand in a crisis, and the longer-term goal of reining in the public sector.

Not surprisingly, his ideas were taken up by right-wing politicians both in Europe and in the US, where he was widely cited by the Republicans who took control of the House in 2010. Along with the work of Reinhart and Rogoff on the supposed dangers of excessive government debt, Alesina’s work provided one of the key intellectual props for the shift among elite policymakers towards fiscal consolidation and austerity.

 Right from the outset, other economists pointed to serious flaws in the case for expansionary austerity, and challenged virtually aspect of the statistical exercises underlying it. A partial list of criticisms includes: using inappropriate measures of fiscal balance; misapplying lessons from boom times to periods of crisis; misclassifying episodes of fiscal expansion as austerity; and generalizing from the special conditions of small open economies, where exchange rate moves could cushion the effects of austerity. Even the most cherished result— that expenditure based austerity worked better than tax-based austerity — has been convincingly challenged.

In 2009, Alesina suggested that Europe was likely to see faster growth because it was cutting public spending in response to the crisis, while the US had embraced conventional Keynesian stimulus. He was right about the difference in responses to the crisis; about economic growth, not so much. The US recovery was weak by historical standards, but in Europe there was hardly a recovery at all. In the countries that cut public spending the most, such as Spain, Portugal, and Ireland, GDP remained below its 2008 peak four, five, even six years after the crisis. By 2013 the financial journalist Jim Tankersley could offer an unequivocal verdict: “No advanced economy has proved Alesina correct in the wake of the Great Recession.”  

Macroeconomic debates have moved on since then. A large new empirical literature on fiscal policy has emerged over the past decade, the great majority of it confirming the old Keynesian wisdom that in a depressed economy, increased public spending can raise output by perhaps $1.50 for each dollar spent. New questions have been raised about central banks’ ability to stabilize the economy, whether with conventional monetary policy or with new tools like forward guidance and quantitative easing. The seemingly permanent reality of low interest rates has changed the debate over the sustainability of government finances, with prominent mainstream economists suggesting that public debt no longer poses the dangers it was once thought to. The revived idea of secular stagnation has suggested that economic stimulus may not be a problem for occasional downturns, but an ongoing necessity. And the urgency of climate change has created big new tasks for the public sector. 

It’s a very different conversation from a decade ago. Can Alesina’s ideas adapt to this new environment? 

That’s the challenge for his new book, Austerity: When It Works and When It Doesn’t, which offers a summing-up of work on government budgets that goes back now almost three decades. Through the years, Alesina has had a rotating case of co-authors, often from Bocconi University in Italy; this book is co-authored with Carlo Ferro and Francisco Giavazzi, both professors there. Given the way that the book has been advertised and promoted (“towering”, a “counterblast”), one might expect a thorough response to the new arguments that have developed over the past decade about aggregate demand management and the appropriate size of the public sector.

Disappointingly, this is not the case. There has been no marking of beliefs to market. For the most part, the book restates the same arguments that were made a decade ago: countries with high public debt must adopt austerity, and this will not hurt growth if it takes the form spending cuts rather than tax increases. Alesina and his coauthors do make some effort to respond to specific methodological criticisms of the earlier work. But they don’t engage with – or even acknowledge – the larger shifts in the landscape. Tellingly, all the book’s formal analysis and almost all of its text (as well as the online data appendix) stop in 2014. For what is supposed to be a definitive statement, it’s an odd choice. Why ignore everything we might learn about austerity and government budgets from the experiences of the past five years?

The book also operates at an odd mix of registers, which makes it hard to understand who the audience is. Exoteric chapters seemingly intended for a broad readership are interspersed with math-heavy esoteric chapters that will be read only by professional economists. You get the feeling this is mostly material that sat in a drawer for a long time before being fished out and stapled together into a book.

To be fair, there are some advances from the previous iterations. Alesina’s earlier work had been criticized for ignoring problems of causality – when high growth and government surpluses are found together, how do we know which is causing which?  Now, instead of relying on purely statistical measures of association, there is more extensive attention given to what has been called the “narrative” approach, with periods of austerity defined by the stated intentions of policy makers rather than simply by changes in the budget position. This approach– pioneered by Romer and Romer to understand US policy actions and expanded by economists at the IMF — does have advantages over the naive statistical approach. By including only tax increases and spending cuts made for reasons other than current economic conditions, it avoids, in principle at least, the problem of fiscal adjustments resulting from changes in economic activity, rather than causing them. But it is still no substitute for a real historical analysis that considers the whole complex of factors influencing both budget positions and growth. Gesturing towards the need for more substantive narrative, the later chapters include several case studies on various OECD countries which undertook austerity measures. These are rather thin and have a Wikipedia air about them; in any case the great bulk of the argument is still based on statistical exercises.

Those who are not convinced by the econometrics in Alesina’s earlier work will not be convinced here either. Even people who share the authors’ commitment to rolling back the public sector may suspect that they are in the presence of what is politely called motivated reasoning. 

To those who don’t share that commitment, it is clear from the opening pages that we are dealing with ideological fiction, not objective analysis. Per Alesina and co, most austerity episodes reflect countries persistently spending beyond their means, with debt rising until a tipping point is reached. But in Europe – surely ground zero in any discussion of contemporary austerity – this story lacks even superficial plausibility. On the eve of their crises, Ireland, Spain and even Portugal had debt-GDP ratios below that of unscathed France; Spain and Ireland were well below Germany. (The fact that Germany consistently ran large deficits in the decade before the crisis is not mentioned here.) Indeed, until 2011 Ireland, now an austerity poster child, had the lowest debt ratio of any major Western European country.

The book asserts that episodes of austerity triggered by outside pressures – as opposed to a government’s own mismanagement of its finances – are rare exceptions. But in Europe they were the rule. The crisis came first, then the turn to austerity; the rising debt ratios came last, driven mainly by falling GDP; budget deficits were an effect, not a cause. Even Greece, perhaps the one country where public finances were a genuine problem before the crisis, is a case in point: From 2010 to 2015, deep cutbacks in public services successfully reduced public debt by about $15 billion euros, or 5 percent — but the debt-GDP ratio still rose by 30 points, thanks to a collapse in GDP.

It would be easy to debate the book point by point. But it’s more useful to take a step back, and think about the larger argument. While the book shifts erratically in tone and subject, underlying all of its arguments – and the larger pro-austerity case – is a rigid logical skeleton. First, a government’s fiscal balance (surplus or deficit) over time determines its debt-GDP ratio. If a country has a high debt to GDP, that is “almost always … the result of overspending relative to tax revenues.” (2) Second, the debt ratio leads markets to be confident in the government’s debt – private investors do not want to buy the debt of a country that has already issued too much. Third, the state of market confidence determines the interest rate the government faces, or whether it can borrow at all. Fourth, there is a clear line where high debt and high interest rates make debt unsustainable; austerity is the unavoidable requirement once that line is passed. And finally, when austerity restores debt sustainability that contributes – via lower interest rates and “confidence” more broadly – to economic growth, especially if the austerity involves spending cuts. 

Individually, these claims are in keeping with the conventional wisdom of the business press and the maxims of “sound finance.” Together, they make a causal story that’s a one-way track with no side branches: Any problems that a government encounters with debt are the result of its fiscal choices in the past. And any solution must involve a different set of fiscal choices – higher taxes or, better, less public spending. 

If you accept the premises, the conclusions follow logically. Even better, they offer the satisfying spectacle of public-sector hubris meeting its nemesis. 

But real-world debt dynamics don’t run along such well-oiled tracks. At every step, there are forks, sidings and roundabouts, that leave the link from fiscal misconduct to well-deserved austerity much less direct than the book suggests.

First of all, as a historical matter, differences in growth, inflation and interest rates are at least as important as the fiscal position in determining the evolution of the debt ratio over time. Where debt is already high, moderately slower growth or higher interest rates can easily raise the debt ratio faster than even very large surpluses can reduce it – as many countries subject to austerity have discovered.

Conversely, rapid economic growth and low interest rates can lead to very large reductions in the debt ratio without the government ever running surpluses, as in the US and UK after World War II. More recently, Ireland reduced its debt-GDP ratio by 20 points in just five years in the mid-1990s while continuing to run substantial deficits, thanks to very fast growth of the “Celtic tiger” period. In situations like the European crisis, extraordinary actions like public assumptions of private debt or writedowns by creditors (as in Cyprus and Greece) can also produce large changes in the stock of debt, without any changes in spending or taxes. Ireland again is an example: The decision to assume the liabilities of private banks catapulted its debt-GDP ratio from 27 percent to over 100 percent practically overnight. Cases like this make a mockery of the book’s central claim that a country’s debt burden reliably reflects its past fiscal choices.

At the second step, market demand for government clearly is not an “objective” assessment of the fiscal position, but reflects crowd psychology, self-confirming conventional expectations, and all the other pathologies of speculative markets. The claim that the interest rates facing a country are directly and reliably linked to the state of its public finances is critical to the book’s argument; rising interest rates are the channel by which high debt creates pressure for austerity, while falling interest rates are the channel by which austerity supports renewed growth. But the claim that interest rates reflect the soundness or otherwise of public budgets runs up against a glaring problem: The financial markets that recoil from a country’s bonds one day were usually buying them eagerly the day before. The same markets that sent interest rates on Spanish, Portuguese and Greek bonds soaring in 2010 were the ones snapping up their public and private debt at rock-bottom rates in the mid-2000s. And they’re the same markets that are setting interest rates for those countries at historical low levels today (Greece now pays less to borrow than the US!), even as their debt ratios, in many cases, remain extremely high.

The authors get hopelessly tangled on this point. They want to insist both that post-crisis interest rates reflect the true state of public finances, and that the low rates before the crisis were the result of a speculative bubble. But they can’t have it both ways: If low rates in 2005 were not a sign that the state of public finances was sound, then high rates in 2010 can’t be a sign that they were unsound.

If the analysis had extended beyond 2014, this problem would only have gotten worse. What’s really striking about interest rates in Europe in recent years is how uniformly they have declined. Ireland, which has managed to reduce its debt ratio by 50 points since 2010, today borrows at less than 1 percent. But so does Spain, whose debt ratio increased by 40 points over the same period. The claim that interest rates are mainly a function of a country’s fiscal position just doesn’t fit the historical experience. It’s hard to exaggerate how critical this is for the whole argument. Rising interest rates are the only cost Alesina and his coauthors ever mention for high debt, and hence the only reason for austerity; and reducing interest costs is the only intelligible mechanism they offer for the supposed growth-boosting effects of austerity – vague invocations of “confidence” don’t count.

And this brings us to the third step. One of the clearest macroeconomic lessons of the past decade is that market confidence doesn’t matter: A determined central bank can set interest rates on public borrowing at whatever level it chooses. In the years before 2007, there were endless warnings that if the US did not get its fiscal house in order, it would be faced with rising interest rates, a flight from the dollar and eventually the prospect of default. (In 2005, Nouriel Roubini and Brad Setser were bold enough to predict that unsustainable deficits would lead to a collapse in the dollar within the next two years.) Today, with the debt much higher than even the pessimistic forecasts of that period, the federal government borrows more cheaply than ever in history. And there hasn’t been even a hint of the Fed losing control of interest rates.

Similar stories apply around the world. Perhaps the clearest illustration of central banks’ power over financial markets came in 2011-2012, when a series of interventions by the European Central bank – culminating in Mario Draghi’s famous “whatever it takes” — stopped the sharp spike in southern European interest rates in its tracks. With an implicit guarantee from their central banks – which other developed countries like the US and UK also enjoy – governments simply don’t need to worry about losing access to credit. To the extent that governments like Greece remained locked out of the markets after Draghi’s announcement, this was a policy choice by the ECB, not a market outcome. 

If countries can face financial crises even when their debt ratio is low, and can enjoy ultra-low interest rates even when they are high, then it’s hard to see why the debt ratio should be a major object of policy. Alesina and colleagues’ central question – whether expenditure-based or tax-based austerity is better for growth – is irrelevant, since there’s no good reason for austerity at all. 

In a world of chronically low interest rates and active central banks, government debt just isn’t a problem. At one point, this was a fringe position but today it’s been accepted by economists with as impeccable mainstream credentials as Olivier Blanchard, Lawrence Summers and Jason Furman – the former chief economist of the IMF, Treasury Secretary and chair of the Council of Economic Advisors, respectively. But not by Alesina, who just goes on singing the same old songs.

The pro-austerity arguments in this book will therefore face more of a headwind than they did when Alesina made them a decade ago. “Sound finance” is no longer the pillar of elite opinion it once was. As we write this, Christine Lagarde, the new head of the European Central Bank, is calling for European governments to spend more during downturns – something hard to imagine when Alesina’s ideas were in vogue. In the US, meanwhile, concerns about the federal debt seem almost passe.

This is progress, from our point of view. The intellectual case for austerity has collapsed, and this book will do little to rebuild it. But that has not yet led to an expansion of public spending – let alone one large enough to restore genuine full employment and meet the challenge of climate change and other urgent social needs. The austerity machinery of the euro system and IMF still churns away, grinding out misery and unemployment across southern Europe and elsewhere, even if it no longer commands the general assent that it once did. At the level of ideas, Keynesian economists can point to real gains in the decade since the crisis. At the level of concrete policy, the work has barely begun.