Fiscally fit: The counterintuitive move that helped India tame inflation

Value of a nation's money reflects the strength of its government. We tend to measure that strength by what we can see: roads, airports, DPI. But the most consequential work of a strong government is fiscal discipline, credibility to honour its debts, willingness to make hard, unpopular choices, and restraint to resist easy giveaways when a windfall arrives. That commitment protects the currency's value and, with it, savings and wages of ordinary people.

India's inflation between 2010 and 2016 is a case study in this contrast between seen and unseen. The country lived with inflation of 9-11% a year from 2010 to 2013, then watched it fall by half within 2 yrs. The usual explanations - expensive food and then cheap oil - are true as far as they go. But they explain neither timing nor persistence.

A better account begins with the framework John Cochrane sets out in his 2023 book, The Fiscal Theory of the Price Level, and as he applies in his 2025 Karl Brunner lecture, 'Inflation'. Its core is a single relation: real value of a government's debt equals the present value of surpluses it will run to repay that debt. When markets stop believing the debt will be honoured, the price level rises to bring the debt's real value back into line.


India after 2008 fits the first half of that story. Stimulus of the financial crisis, a large farm loan waiver, expanding rural employment guarantee, pay commission arrears, and a swelling bill for fuel and fertiliser subsidies kept deficits wide long after the emergency had passed. GoI's deficit hovered near 5-6% of GDP, and the general government's near 8%. What turned persistent deficits into persistent inflation was erosion of confidence in future repayment.

Growth slowed from about 9% to 5%, shrinking the future tax base, and a sequence of events made the state look more extractive and less predictable: a retrospective tax law aimed at the Vodafone deal, Supreme Court's cancellation of 122 telecom licences in 2012, and of 214 coal block allocations in 2014, and a broader policy paralysis, each of which raised the real return investors demanded to hold claims on the state.

The 2013 taper tantrum, when the rupee fell by 1/5th in weeks, was the same loss of confidence seen from the outside. RBI raised rates hard, to 8.5% by late 2011, and again in early 2014. Yet, inflation would not yield. Without a fiscal correction, higher rates raised GoI's interest bill, feeding the pressure they were meant to relieve.

The break came in 2014-16, and here the story turns counterintuitive. Global oil price collapsed, from around $110 a barrel to the mid-40s. An oil importer might have passed that windfall straight to consumers. India did the opposite. Between Nov 2014 and Jan 2016, GoI raised excise duty on fuel on 10 separate occasions, lifting the petrol levy from about ₹9 to ₹21 a litre, and diesel levy from about ₹4 to ₹17, to capture the gains from cheaper crude rather than pass them on. Retail pump prices, therefore, fell far less than crude did, while the subsidy bill collapsed and fuel-tax revenue surged.

This is the counterintuitive heart of the episode. A fuel tax hike is, on any cost-push reasoning, inflationary. Yet, it coincided with inflation falling to less than half its earlier rate. The resolution is fiscal. By banking the terms-of-trade windfall as revenue, GoI produced a durable rise in the present value of its surpluses, repairing the backing of its debt and lowering expected inflation.

Discipline, not a giveaway, re-anchored prices. A fiscal-consolidation path and a new inflation-targeting framework in 2015 sealed the change. The repo rate was then cut without reigniting inflation, the classic mark of a restored anchor. The deeper vindication has come since. That commitment to fiscal discipline, once re-established, has been held through one crisis after another, from the pandemic to the closure of the Strait of Hormuz.

By taxing cheap oil in calm years to build fiscal room, GoI could spend it during the crisis - cutting fuel excise to absorb the shock rather than pass it to households. This buffered the blow, keeping inflation within RBI's tolerance band. That steadiness is the chief reason India's inflation has stayed low, while other economies lurched from shock to shock. Discipline is not a single decision but a standing commitment. And it is on that commitment that the value of the rupee rests. Two lessons endure:

• Inflation is fought on an unseen margin. The visible triggers - a failed monsoon, an oil spike, a rate decision - matter far less than the invisible belief that the state will honour its debts in real terms. Central banks can move interest rates. But they cannot substitute for a credible fiscal promise.
• Inflation is a regressive tax. It erodes cash and wages of the poor, who cannot hedge, while the wealthy shelter in property, equities, gold and forex. The most powerful thing a state can do for price stability, and for citizens most exposed to inflation, is to remain solvent. And to be seen to remain so.