💰 Inflation is the rise in the general price level over time. If a cup of coffee cost €3.50 five years ago and costs €4.80 today, the coffee has not become more valuable — money has become less valuable. For every euro you buy less. That is inflation in everyday language.
Inflation is so central to markets because central banks fight it with their most important tool: the key rate. And because rate changes affect practically everything — bond prices, equity valuations, exchange rates, borrowing costs, real estate prices. Those who understand inflation understand half the macro cycle.
📦 Three Causes of Inflation
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Demand-Pull Inflation
Too much money chasing too few goods. When consumers want to buy more than is produced, prices rise. Typical in boom times or after government stimulus programmes.
Example: US inflation 2021 after COVID stimulus cheques + pent-up demand
🛢️
Cost-Push Inflation
Rising production costs are passed on to consumers. Classic: an oil price shock raises transport, energy, and raw material costs — the rest follows with a delay.
Example: oil crisis 1973, energy inflation 2022 after the Ukraine invasion
🖨️
Monetary Inflation
Too much money in circulation with the same quantity of goods. When governments finance public debt by printing money, inflation follows with near-mathematical certainty.
Example: Venezuela 2018, Zimbabwe 2008 — extreme case: hyperinflation (see below)
📊 US Inflation over the Last 50 Years
The trajectory shows a clear pattern: two inflation shocks in the 1970s (oil + wage-price spiral), broken by Fed Chair Volcker with brutally high rates — at the cost of a severe recession. Then two decades of the "Great Moderation" with stable ~2 %. And then 2022: the strongest inflation surge in 40 years.
🇺🇸 US Inflation (CPI) 1973–2024
Annual values | ■ >6% ■ 3–6% ■ <3% ■ Deflation
💥 Hyperinflation — When Money Becomes Paper
📖 Definition: Hyperinflation
Economists speak of hyperinflation when the inflation rate exceeds 50 % per month (Cagan threshold, 1956). At this pace prices double every ~35 days. Cash loses value faster than it can be spent. Wages are worth less at end of day than they were in the morning. Trust in the currency collapses entirely — people flee to real assets, foreign currencies, or even cigarettes.
🇩🇪 Weimar Republic
29,500 %/month
November 1923 — peak
War reparations + occupation of the Ruhr. Germany printed money to pay striking workers. A loaf of bread eventually cost trillions of marks. The savings of an entire generation were destroyed in weeks.
🇿🇼 Zimbabwe
79.6 billion %/month
November 2008 — peak
Mugabe's land reform destroyed agricultural production. The printing press was switched on to finance the deficit. 100-trillion-dollar notes were printed — worthless before they could be spent. USD and rand took over.
🇻🇪 Venezuela
~10,000,000 %/year
2019 — peak
Oil collapse + massive money supply expansion to fund the state. Prices doubled every 19 days. Supermarket shelves empty, the dollar became the informal everyday currency. ~6 million Venezuelans left the country. Full story ↓
🛢️
Story: Venezuela's Hyperinflation — Oil, Socialism, and the Collapse of a Currency
Hyperinflation
Peak inflation 2019
~10 million %
Bolivar purchasing power since 2012
−99.99 %
Zeros removed from currency
12 digits
GDP contraction 2013–2021
−75 %
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1999–2012 — The oil boom carries everything
President Hugo Chávez finances massive social programmes with oil revenues at $100/barrel: healthcare, education, housing. Venezuela looks like the richest country in South America. The state oil company PDVSA is politically occupied — investment in production capacity is neglected.
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2014 — Oil price collapses
Oil falls from >$100 to below $50. Venezuela earns 96 % of its foreign exchange from oil. The budget collapses immediately. Instead of cutting spending, Maduro (successor to Chávez, who died in 2013) massively expands the money supply — the central bank monetises government debt.
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2016–2018 — Escalation to hyperinflation
2016: 274 % inflation. 2017: 862 %. 2018: over 1,000,000 %. Supermarket prices change multiple times a day. Workers receive wage increases that lose purchasing power the same day. Cash is transported in suitcases — thousands of notes needed for simple purchases.
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2019 — Bolivar collapse and currency reforms
Inflation exceeds 10 million percent. The government first removes 5 zeros (new "Bolivar Soberano"), then in 2021 a further 6 zeros ("Bolivar Digital") — 12 zeros in total in 10 years. The US dollar takes over daily life de facto. An estimated 6 million Venezuelans leave the country, the largest refugee crisis in South American history.
💡 Macro lesson: Hyperinflation almost always arises from the same pattern — government monetises deficits + trust in the central bank collapses. The most important institutional characteristic of stable currencies (USD, EUR, CHF) is the independence of the central bank from political pressure. Where this independence is absent or eroded, the clock starts ticking — as Venezuela, Zimbabwe, and the Weimar Republic show.
🌍 Inflation in Global Comparison — Current Extremes
The following overview shows how differently inflation plays out worldwide and which countries topped the charts in recent years.
| Country |
Peak inflation |
Period |
Main cause |
Today (approx.) |
| 🇻🇪 Venezuela |
~10,000,000 % |
2019 |
Money supply explosion + oil collapse |
~50 % — still high |
| 🇦🇷 Argentina |
211 % |
2023 |
Chronic fiscal deficits + devaluation |
~70 % — declining under Milei |
| 🇱🇧 Lebanon |
170 % |
2021 |
Banking system collapse + political crisis |
~100 % — crisis ongoing |
| 🇹🇷 Turkey |
85 % |
2022 |
Unorthodox monetary policy (low rates during high inflation) |
~40 % — after policy reversal |
| 🇺🇸 USA |
9.1 % |
2022 |
COVID stimulus + supply chains + energy |
~2.9 % — Fed successful |
| 🇩🇪 Germany |
10.4 % |
2022 |
Energy dependence on Russia + Ukraine war |
~2.3 % — within target range |
| 🇯🇵 Japan |
4.2 % |
2023 |
Decades of deflation, now slight price rises (special case) |
~2.5 % — BoJ fighting for inflation |
📏 The Most Important Inflation Measures at a Glance
CPI (Consumer Price Index)
The most important consumer price index. A distinction is made between Headline CPI (including energy and food) and Core CPI (excluding these volatile components). The Fed's tolerance sits at ~2 % annual growth. Released monthly, around the middle of the month at 14:30 CET — one of the most market-moving events of all.
PCE (Personal Consumption Expenditures)
The Fed's preferred inflation measure. More broadly defined than CPI, uses a more dynamic basket (reflects consumer substitution behaviour). Again headline vs. core. Anyone who really wants to understand the Fed looks at Core PCE, not CPI.
Core Inflation
Inflation excluding energy and food. Shows the "stickiness" of inflation: how deeply has price pressure embedded itself in services, rents, and wages? Headline inflation can fall quickly due to an oil price decline — if core inflation remains high, the Fed is far from easing.
PPI (Producer Price Index)
Producer prices. Leading indicator for CPI: when producer prices rise, they are often passed on to end consumers with a few months' delay. Released usually one day before or after CPI, which institutional traders use for pairs positions.
GDP
Gross Domestic Product — the sum of all goods and services produced. In the US published quarterly in three stages (Advance, Second, Third Estimate). The Advance Estimate moves markets most strongly because the data is freshest.
ISM Manufacturing / ISM Services / PMI
Purchasing managers' indices, collected monthly. Values > 50 signal expansion, < 50 contraction. ISM Manufacturing appears on the 1st business day of the following month (16:00 CET), ISM Services on the 3rd business day. In Europe: S&P Global PMI (formerly Markit).
Labour Market (US)
- Non-Farm Payrolls (NFP): First Friday of the month, 14:30 CET. New jobs outside agriculture.
- Unemployment Rate: Same release, different dataset (household survey).
- JOLTS (Job Openings and Labor Turnover Survey): Job openings, monthly.
- Initial Jobless Claims: Weekly, Thursday 14:30 CET — the fastest pulse check of the labour market.
Key US Macro Releases
| Indicator |
Frequency |
Time CET |
Market sensitivity |
| NFP | monthly | 1st Fri 14:30 | high |
| CPI | monthly | mid-month, 14:30 | very high |
| PCE | monthly | end of month, 14:30 | high |
| FOMC Minutes | 8× p.a. | 20:00 (3 wks after meeting) | medium |
| Fed Chair presser | 8× p.a. | 20:30 | very high |
| ISM Manufacturing | monthly | 16:00 (1st business day) | medium |
| Retail Sales | monthly | 14:30 mid-month | medium |
| JOLTS | monthly | 16:00 | medium |
| Initial Claims | weekly | Thu 14:30 | low–medium |
| GDP | quarterly | 14:30 | medium |
Example: CPI Release 13 July 2022
Headline CPI came in at 9.1 % y/y (estimate 8.8 %). The reaction:
- S&P 500 intraday: −3 %
- Dollar Index (DXY): +1.5 %
- 2Y yield: +20bp within one hour
CPI surprises now regularly move indices more strongly than any individual company announcement. A miss or beat of ±0.2pp is enough for a 1–3 % index move.
Pitfalls
- ❌ Staring at just the headline number instead of examining the trend (3- or 6-month annualised).
- ❌ Anticipating the market reaction without knowing what expectation is priced in. A CPI of 8.5 % can make the market rise (if 8.8 % was expected) or fall (if 8.2 % was expected).
- ❌ Over-interpreting individual data points. Monthly noise is high; three-month averages are more meaningful.