Inflation denial is rarely just about inflation.
Throughout the 2000s, Greece's statistical authorities presented budget deficits, debt-to-GDP ratios and, to some extent, economic growth figures in a more favorable light than the underlying reality.
When George Papandreou's government took office in 2009, it disclosed that the budget deficit, previously reported at around 6 percent, was in fact more than twice that level. Later revisions widened the discrepancy even further.
Was this simply a statistical revision?
Of course not.
It amounted to an admission that a state had been reporting inaccurate economic statistics for years.
Greece was also part of the euro area and of the European statistical system, which operated on the assumption that data supplied by member states could be trusted. Once that assumption broke down, doubts were no longer confined to Greece. Questions emerged over whether other member states might also be reporting misleading figures.
It became a crisis of confidence.
The economic consequences soon followed. As debt continued to rise, so did the future tax burden required to service it. The risk of sovereign default became harder to ignore.
Country risk premiums climbed, refinancing became more expensive and the crisis began feeding on itself. Investors started selling Greek government bonds. Borrowing costs rose. Signs of a sudden stop appeared.
Markets then began asking whether Greece was an isolated case. Portugal, Spain and Italy came under greater scrutiny, helping lay the foundations of the European sovereign debt crisis. Unemployment surged, production contracted and severe austerity followed.
The crisis did not emerge overnight. Nor was it simply the result of a large budget deficit or overstated national income figures.
The deeper problem was that the weakness had been concealed. Information arrived too late for an effective response, confidence deteriorated, rational expectations weakened and the reliability of official data itself became a state variable in the economy.
Argentina went through a comparable experience between 2007 and 2015.
During that period, the national statistics agency, INDEC, systematically understated inflation. Official figures remained in the 8 to 10 percent range while the actual rate was approaching 40 percent.
In other words, inflation was no longer being measured. It was being managed.
The process began with changes to the inflation basket. Cheaper goods were given greater weight. Rapidly rising prices were excluded or reduced in importance. State-controlled or administratively influenced prices were used in ways that softened the overall picture, while actual market prices were increasingly pushed into the background.
The methodology was also changed without adequate explanation.
Official price indices consequently ceased to function as neutral statistical indicators and became political variables.
The effects spread through the economy. Wage negotiations were distorted and contracts lost meaning. Parallel economic realities emerged as the official economy on paper and the economy experienced in the market increasingly diverged.
Interest rates were set against faulty information. Wages were suppressed.
In areas outside direct state control, especially rents, prices surged. Price labels became less meaningful and firms increasingly resorted to hidden or indirect increases.
The International Monetary Fund formally censured Argentina over the data controversy. The experience pushed economists back toward a basic question: are inflation and national income figures simply economic variables, or can they become politically determined outcomes when institutions lose their credibility?
The experiences of Greece and Argentina show what can happen when trust in official data breaks down. Denying inflation distorts pricing behavior, while concealed fiscal imbalances can suddenly surface as a debt crisis.
Türkiye has faced a deepening and persistent economic crisis since 2018. Its causes must also be examined with the credibility of economic data included in that assessment.
This article by Prof. Dr. Veysel Ulusoy was originally published in Turkish in Cumhuriyet on April 5, 2026, and is republished in English on Bosphorus News with the author's permission.