Why Does Money Buy Less Than It Used To?

Inflation

Thesis: Inflation is not a single event but a slow renegotiation of what money is actually worth, and the institutions meant to manage it face a genuine trade-off between short-term relief and long-term stability.

I still remember roughly what my allowance could buy a few years ago — and it was more than what the same amount buys now. Nothing about the bill itself changed; the number printed on it is identical. What changed is what that number is worth, and for a long time I never questioned why that keeps happening, quietly, every year. Looking into it led me to inflation — not as an abstract line on a chart, but as the mechanism by which the same amount of money slowly loses its claim on the world.

Figure 1. The same amount of money, quietly buying a little less than it used to.

What Inflation Actually Measures

Inflation is typically tracked through a Consumer Price Index, a basket of everyday goods and services whose combined price is compared over time to show how fast the cost of ordinary life is rising. What the CPI is really measuring is purchasing power — how much real stuff a fixed amount of money can command. Central banks, such as the U.S. Federal Reserve or the Bank of Korea, are tasked with keeping this rate of change moderate and predictable, usually targeting around 2% annually, because both runaway inflation and outright deflation are damaging: one erodes savings and trust in currency, the other freezes spending and investment. The tools central banks use — raising or lowering interest rates, or expanding the money supply through measures like quantitative easing — work by making borrowing and spending more or less attractive, which indirectly slows or speeds up how fast prices rise.

Argentina's Disinflation, In Real Time

Argentina offers one of the clearest live examples of both extremes. When President Javier Milei took office in December 2023, annual inflation had reached 211.4%, among the highest rates in the world outside a handful of collapsed economies, driven by years of unchecked government money-printing to cover budget deficits. Milei's government responded with aggressive austerity: eliminating price controls, sharply cutting spending, and refusing to keep printing pesos to cover the gap. The results took time but became measurable — by mid-2026, Argentina's annual inflation had fallen to roughly 33.5%, with monthly price increases slowing to under 2%, prompting credit-rating upgrades from S&P and Fitch. The human cost of getting there was significant, and economists still debate whether the pace of austerity was necessary or excessive. But the case demonstrates something textbooks often state abstractly: inflation is, at its root, usually a monetary phenomenon, and reversing it requires a government willing to stop financing itself by printing money, even when that is politically painful.

Figure 2. Argentina's annual inflation fell from 211.4% in 2023 to roughly 33.5% by mid-2026.

Living With a Slow-Moving Problem

No country manages inflation perfectly, which is why most modern central banks now operate under explicit inflation-targeting frameworks, publishing a target rate and adjusting interest rates transparently to hit it, rather than intervening unpredictably. A harder, unresolved question is how to protect people who cannot simply wait out a disinflation program — renters, wage workers, and retirees on fixed incomes feel price increases immediately, while wages typically adjust with a lag. Some governments now index certain benefits and minimum wages to inflation automatically, reducing that lag, though this risks entrenching a wage-price spiral if not carefully calibrated.

Figure 3. Central banks walk a careful line between controlling inflation and supporting growth.

Conclusion

What surprised me most is how deliberately human a decision inflation is — it is not a natural weather pattern, but the accumulated result of choices about how much money to print and how much debt a government is willing to carry. Watching Argentina's inflation fall from over 200% to the 30s in under three years convinced me that inflation, however painful, is a policy choice with an exit — not an inevitability.

Sources

1. Buenos Aires Times / Bloomberg (2026). Argentina inflation slows to lowest level since last August.

2. The Sun Malaysia / Reuters (2024). Argentina inflation surges past 200% as economic crisis bites.

3. AmericaEconomía (2025). The market projects that Milei would end his term with the lowest inflation in 21 years.