Why Central Banks Target 2% Inflation — The Surprising Origin Explained - Economics Notes

Описание: You hear it everywhere: central banks target 2% inflation. But why 2% — not 0% or 5%? In this explainer we trace the surprisingly recent and accidental origin of the 2% target, how a New Zealand TV soundbite morphed into global policy, and the trade-offs that keep central banks attached to this imperfect number.

We cover:
• The curious birth of inflation targeting in New Zealand (late 1980s)
• How a casual “0–1%” soundbite was rounded into today’s 2% norm
• Why economists defend a small positive inflation rate — avoiding deflation and preserving monetary policy space
• The costs: invisible erosion of savings and price-setting frictions for businesses
• The difference between “good” deflation (tech/productivity) and catastrophic deflation
• The credibility trap that makes changing the target risky

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Chapters

00:00 — Intro: why that 2% number matters
00:18 — What is inflation targeting?
00:38 — The surprising origin: New Zealand in the 1980s
01:10 — A TV soundbite becomes policy (0–1% → 2%)
01:40 — Why 2% spread to other central banks
02:10 — Benefits: anchoring expectations & avoiding deflation
02:45 — Policy room: why central banks need room to cut rates
03:15 — Wage freeze vs layoffs — the labor market trade-off
03:45 — Why deflation is terrifying (the downward spiral)
04:30 — The hidden cost: inflation as a stealth tax on savers
05:05 — Good deflation (tech) vs bad deflation (demand collapse)
05:35 — The credibility trap: why 2% persists
06:20 — Final question: is 2% fit for the future?
07:00 — Outro & subscribe

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