By Otmar Issing
September 17, 2026
In the annals of monetary policy, the period between 2021 and 2023 will likely be remembered as a catastrophic failure of institutional foresight. As the global economy emerged from the tectonic shocks of the COVID-19 pandemic, central banks—the stewards of price stability—found themselves standing in the eye of an inflationary hurricane they had insisted was impossible. The failure to anticipate the rapid ascent of consumer prices was not merely a tactical error; it was a systemic collapse of the intellectual framework that has guided global central banking for the past three decades.
By relying too heavily on refined but ultimately flawed econometric models and disregarding the fundamental signals of monetary expansion, the world’s leading monetary authorities allowed an inflationary surge to take root. As we look back from 2026, the lessons are clear: the era of blind faith in inflation targeting as a self-correcting mechanism has reached its limit.
The Genesis of Complacency: The Post-2008 Mirage
To understand the blindness of 2021, one must look to the decade that followed the 2007–08 global financial crisis. During this period, the primary concern of the Federal Reserve, the European Central Bank (ECB), and the Bank of Japan was not inflation, but the persistent threat of deflation.
The discourse was dominated by the theory of "secular stagnation"—the idea that the global economy was trapped in a long-term decline in growth, demand, and interest rates. Academic economists and central bank policymakers alike convinced themselves that inflation was a relic of the 1970s. This created an environment where monetary policy became aggressively expansionary. Central banks maintained near-zero interest rates and engaged in unprecedented quantitative easing (QE), operating under the assumption that these policies could be reversed instantly should inflationary pressures emerge.
This period of "easy money" fostered a false sense of security. Policymakers became convinced that they had mastered the business cycle, believing that as long as long-term inflation expectations remained "anchored," they could print money with impunity.
Chronology of a Policy Failure
The path to the 2021-2023 inflation crisis was not sudden; it was a gradual unfolding of ignored warning signs.
- Early 2020: The pandemic triggers a global lockdown. Central banks respond with a massive, coordinated injection of liquidity to prevent a systemic collapse. While necessary to provide a floor for the economy, the sheer scale of the stimulus, combined with supply chain bottlenecks, began to lay the groundwork for a supply-demand imbalance.
- Late 2020 – Early 2021: As lockdowns lift, consumer demand surges. Supply chains, fractured by months of inactivity, prove unable to scale quickly. Prices for goods begin to rise, but central banks dismiss these as "transitory" anomalies.
- Mid-2021: The money supply (M2) in the United States and other developed nations hits record-breaking growth rates. Despite this, central bank models—which had largely purged monetary aggregates from their forecasting equations—continue to predict a return to the 2% target.
- Late 2021: Inflation begins to permeate the services sector and wage growth. The "transitory" narrative becomes increasingly difficult to defend, yet policy rates remain at the floor.
- 2022: Russia’s invasion of Ukraine acts as a massive supply-side shock, pushing energy and food prices to historic highs. Central banks are forced into a desperate, aggressive cycle of interest rate hikes, effectively admitting that their previous models were obsolete.
- 2023: The "Great Correction" continues. Interest rates reach levels not seen in decades, causing tremors in banking and real estate sectors. The era of cheap money is officially over.
Supporting Data: The Disconnected Models
The fundamental error made by central banks was the abandonment of the "monetary pillar." For decades, the link between the money supply and inflation was considered a cornerstone of sound economics. However, modern New Keynesian models relegated money to the background, focusing instead on the "output gap" and the Phillips Curve—the inverse relationship between unemployment and inflation.
The data from 2020–2021 tells a different story. In the United States, M2 growth spiked by over 25% in a single year. Any traditional reading of the quantity theory of money would have signaled that a massive inflationary surge was inevitable. Yet, central banks treated money supply growth as irrelevant, prioritizing their internal forecasting models which assumed that inflation would be held in check by "slack" in the labor market.
Furthermore, the reliance on the Phillips Curve proved disastrous. As the economy tightened, the models predicted that wage-push inflation would be muted. Instead, workers demanded compensation for rising costs, creating a feedback loop that the models failed to capture. The failure was not a lack of data, but a failure of interpretation. Central banks looked at the data they wanted to see, rather than the data that was flashing red.
Official Responses and Institutional Accountability
The reaction from global monetary authorities to the 2021–2023 crisis was characterized by a defensive shifting of narratives. Initially, the rhetoric was one of "transitory" price pressures, blaming supply chain logistics and pandemic-induced disruptions. As inflation proved sticky, the messaging transitioned to "data-dependency"—a phrase often used as a euphemism for reactive, rather than proactive, policy.
In various post-mortem briefings, central bank governors have cited the "unprecedented" nature of the pandemic as a mitigating factor. They argued that the dual shock of a global health crisis and a geopolitical war in Europe made forecasting impossible. However, critics argue that the models themselves lacked the flexibility to account for extreme tail-risk events because they were calibrated to a world of low inflation and low volatility.
The Federal Reserve’s pivot in 2022, which saw the fastest pace of rate hikes in its history, served as a tacit admission that the "transitory" thesis was a profound miscalculation. Similarly, the European Central Bank faced severe criticism for waiting too long to raise rates, hampered by a mandate that struggled to balance the needs of disparate member states during a period of high fiscal expansion.
Implications: The Need for a New Monetary Paradigm
The 2021–2023 crisis has left a lasting scar on the credibility of central banks. When institutions tasked with protecting the purchasing power of a currency fail so spectacularly, the public loses trust.
1. The Reinstatement of Monetary Aggregates
It is time to bring money back into the fold. The disregard for monetary growth during the pandemic proved that central banks cannot rely solely on output gaps and labor market data. A more eclectic approach, one that weighs monetary signals alongside traditional indicators, is essential.
2. The Limits of Inflation Targeting
For years, the 2% inflation target was treated as a holy grail. But the crisis showed that a rigid adherence to a number can lead to dangerous policy inertia. If inflation is below 2%, central banks often feel compelled to keep policy loose indefinitely, creating bubbles in asset prices. If inflation is above 2%, they often wait too long to act for fear of triggering a recession. A more flexible, range-based approach or a greater focus on nominal GDP targeting may be required.
3. The Independence Dilemma
Central bank independence is founded on the idea that these institutions are more capable of making unpopular, long-term decisions than politicians. However, the 2021–2023 period showed that central banks were, in fact, highly susceptible to political and social pressures. The blurring of lines between fiscal policy (government spending) and monetary policy (money creation) during the pandemic suggests that central banks have become too entangled with the fiscal requirements of the state.
Conclusion: Lessons for the Future
The inflationary surge of 2021–2023 was not a "black swan" event; it was a predictable outcome of excessive liquidity injected into a supply-constrained world. The fact that the most powerful economic institutions in the world missed it speaks to an intellectual malaise.
As we move forward, the global economy requires a return to humility. Central banks must recognize that their models are tools, not maps of reality. They must be willing to acknowledge the limits of their control and the dangers of ignoring fundamental economic principles. The era of the "all-knowing" central banker is over. What must replace it is an approach defined by caution, broader data analysis, and a renewed commitment to price stability—not as a target to be hit, but as a bedrock of a functional society.
The events of the last few years have shown that when central banks stop paying attention to the fundamentals of money, the market will eventually force them to pay the price. It is a lesson that history has taught us before, and one that we must ensure is not forgotten in the years to come.
