You have probably heard the word inflation hundreds of times. You have felt it at the supermarket, at the petrol station, and every time your rent renews. But most people — including most beginner investors — have never had it properly explained in terms of what it actually does to their money.
That gap is expensive. Because inflation is not just something that happens to prices. It is something that happens to your savings, your portfolio, and your long-term wealth — whether you are investing or not.
This article explains what inflation is, how it is measured, what caused the big spike of 2021 to 2022, and — most importantly — what it means for your money and what to do about it.
What Is Inflation? (The Simple Version)
Inflation is the rate at which prices rise over time. As prices go up, each unit of currency buys less than it used to. Your money does not disappear — it just slowly loses its purchasing power.
A classic example: in the 1950s, a cinema ticket in the US cost around 50 cents. Today it costs roughly $15. The ticket did not become more valuable. The dollar became worth less.
This is not a crisis or a conspiracy. It is a normal, measurable feature of modern economies. Every major government tracks it. Every central bank targets it. And every investor needs to understand it.
How Is Inflation Measured?
The basket of goods
Inflation is measured by tracking a “basket” of goods and services that a typical household buys — things like food, housing, transport, clothing, healthcare, and entertainment. Government agencies measure how much this basket costs each month and compare it to the same month a year ago. That year-over-year change is the inflation rate.
In the US, this is called the Consumer Price Index (CPI), published monthly by the Bureau of Labor Statistics. The UK uses a similar measure called the CPI. The Eurozone uses the HICP (Harmonised Index of Consumer Prices). Different countries, same core idea. (Source: US Bureau of Labor Statistics)
Headline vs. Core CPI
You will often hear two versions of the inflation number: headline CPI and core CPI.
Headline CPI covers everything — food, energy, all goods and services. Core CPI strips out food and energy, because those categories can be volatile. A cold winter or a war in an oil-producing region can temporarily spike energy prices without reflecting a genuine change in underlying inflation.
Core CPI gives economists and central banks a cleaner read on where inflation is actually heading. The J.P. Morgan chart below shows both measures from 2018 to January 2026. Headline CPI peaked at 9.1% in June 2022. It has since fallen back to 2.4% as of January 2026 — below the 50-year average of 3.6%. (Source: J.P. Morgan Asset Management, Guide to the Markets)
Source: J.P. Morgan Asset Management / Bureau of Labor Statistics.
Why there are multiple inflation measures
The US Federal Reserve actually prefers a slightly different measure called the PCE (Personal Consumption Expenditures) deflator over CPI. PCE uses a broader basket that adjusts more dynamically for how consumers change their spending habits. It tends to run slightly lower than CPI. If you see financial news reference the Fed’s 2% target, they are usually talking about core PCE — not CPI. For most beginners, the practical difference is minor. The key concept — prices rising over time — is the same.
What Causes Inflation?
Inflation does not just appear randomly. There are three main causes, and understanding them helps explain why the 2021–2022 spike was so sharp and so global.
Demand-pull inflation
This happens when too much money chases too few goods. When consumers have more money to spend — through stimulus payments, wage growth, or easy credit — demand surges. If supply cannot keep up, prices rise.
The 2020 to 2021 episode is the textbook case. COVID stimulus payments landed in millions of bank accounts. People stuck at home shifted spending from services to goods. Global supply chains were strained or broken. The result: a surge in demand for physical goods with far less supply to meet it. Prices had nowhere to go but up.
Cost-push inflation
This happens when the cost of producing things rises, and producers pass those costs on. Higher energy prices, higher wages, or more expensive raw materials all feed through to consumer prices.
In 2022, Russia’s invasion of Ukraine sent energy prices sharply higher across Europe and beyond. That cost-push factor accelerated inflation in the UK and Eurozone far faster than in the US, as the BNP Paribas chart below shows — UK inflation peaked above 11%, nearly double the US peak. (Source: BNP Paribas / LSEG Datastream, January 15, 2026)
Source: BNP Paribas / LSEG Datastream, January 15, 2026.
Built-in (expectations) inflation
This is the most insidious form. When workers expect prices to keep rising, they demand higher wages. Businesses, facing higher wage bills, raise prices to protect margins. Those higher prices validate workers’ expectations. The cycle feeds on itself.
This is why central banks obsess over “anchoring inflation expectations.” Once people stop believing that inflation will return to 2%, it becomes very hard to get it back there without a painful recession. The Fed, ECB, and Bank of England all raised interest rates aggressively in 2022 and 2023 specifically to prevent this spiral from taking hold.
Why Some Inflation Is Actually a Good Thing
A common beginner misconception: inflation is always bad. In reality, central banks deliberately target a 2% annual inflation rate. Not zero. Not negative. 2%.
- Encourages spending and investment. If your money slowly loses value, you have a reason to put it to work rather than hoard it.
- Supports wage growth. Rising prices give employers cover to raise wages, which keeps workers better off over time.
- Gives central banks room to act. When a recession hits, central banks cut interest rates. If inflation is already at zero, there is less room to cut before policy runs out of road.
The real danger is deflation — falling prices. It sounds pleasant, but deflation causes consumers to delay purchases (“why buy today if it will be cheaper tomorrow?”), which stalls economic activity, cuts corporate revenues, and can spiral into a depression. Japan struggled with deflation for decades. It is not a problem any central bank wants to repeat.
Inflation Does Not Hit Everything Equally
Here is where it gets personal — and where the official CPI number can feel disconnected from real life.
The Visual Capitalist chart below tracks cumulative price changes across 14 categories of goods and services from 2000 to September 2025. The headline number is 92% overall inflation over 25 years. But inside that average, the picture is dramatically uneven. (Source: Visual Capitalist / US Bureau of Labor Statistics, data as of September 2025)
Source: Visual Capitalist / US Bureau of Labor Statistics, data as of September 2025.
The things you need have gotten far more expensive. The things you want have gotten cheaper.
| Category | Price change since 2000 |
|---|---|
| Hospital services | +275% |
| College tuition & fees | +196% |
| Child care | +185% |
| Medical care | +129% |
| Housing | +111% |
| Food & beverages | +104% |
| All US items (overall CPI) | +92% |
| New & used vehicles | +25% |
| Clothing | +2% |
| Cellphone services | -43% |
| Toys | -74% |
| Computer software | -75% |
| TVs | -98% |
(Source: Visual Capitalist / US Bureau of Labor Statistics)
This is why inflation feels worse than the headline number suggests for many households. If you spend a large share of your income on healthcare, education, or housing — as most people do — your personal inflation rate is well above the official CPI. Understanding this matters for investment risk, too. Inflation is not a uniform tax. It hits different people differently, depending on what they spend on.
What Inflation Means for Your Money
The savings account trap
Imagine you have $10,000 sitting in a savings account earning 0.5% interest per year. Sounds safe, right? Now imagine inflation is running at 3%. Your account grows in nominal terms — but in real terms (what it can actually buy), it is shrinking by roughly 2.5% every year.
That is not safety. That is a guaranteed slow loss of purchasing power.
The same power of compounding that grows your investments over decades works against you here. At 3% inflation over 20 years, $10,000 has the purchasing power of approximately $5,500. Your savings account balance stayed at around $11,000. Your actual purchasing power fell by nearly half. Cash feels like the safe option. Over the long run, it is often the riskiest one.
How different assets respond to inflation
Not all investments respond to inflation the same way. Here is the broad picture:
| Asset class | Behaviour during inflation | Key point |
|---|---|---|
| Cash / savings | Loses real value if interest rates lag inflation | The silent risk most beginners overlook |
| Bonds | Fixed payments lose real value as prices rise | Why 2022 was painful for traditional 60/40 portfolios |
| Equities | Generally outpace inflation over long horizons | Companies raise prices; revenues and profits grow |
| Commodities | Direct inflation hedge — prices often rise with inflation | Gold, oil, and agricultural goods have historically tracked inflation |
| Real estate | Prices and rents tend to rise with inflation | Strong hedge, but illiquid and capital-intensive |
This is why equities, despite their short-term volatility, have historically been the most effective long-term hedge against inflation. Businesses are not passive observers of rising prices — they are often the ones setting them. And as a shareholder, you participate in that. For a deeper look at how gold, oil, and agricultural commodities work as inflation hedges, see our article on what commodities are and how to access them as an investor.
The global picture
Inflation in 2021 to 2023 was not just a US story. As the BNP Paribas chart above shows, the Euro Area peaked at over 10% and the UK hit above 11%. The causes were largely the same — post-COVID demand surge, energy price shocks, and supply chain disruption — but the magnitude varied by region based on energy dependence and policy response. This global dimension is also one reason why a weakening US dollar is often linked to inflationary periods. A weaker dollar raises the cost of imports, which feeds into domestic prices.
What Investors Actually Do About Inflation
Understanding inflation is one thing. Acting on it sensibly is another. Here is what the evidence-based approach looks like for most beginner investors:
- Stay invested in equities for the long run. Over 10 to 20 year horizons, equities have consistently delivered real (after-inflation) returns. The worst long-term strategy for inflation is holding cash and waiting for “the right moment.”
- Diversify across asset classes. A portfolio that includes equities, some commodities, and possibly real assets is better positioned to handle inflation across different scenarios. This is the core argument in our diversification explainer.
- Use dollar-cost averaging. Investing a fixed amount regularly — regardless of what prices are doing — means you automatically buy more units when markets are down. See our article on dollar-cost averaging for the full mechanics.
- Rebalance regularly. As inflation shifts the relative values of your assets, rebalancing keeps your allocation where you intended it to be. See what rebalancing is and whether it helps.
The goal is not to “beat” inflation with a clever trade. It is to build a portfolio that stays ahead of it over time — without taking unnecessary risks or reacting emotionally to short-term price movements.
Try It Yourself: The Zorroh Portfolio Analyzer
Want to see how inflation-sensitive assets have actually performed — including during the 2022 inflation shock? Use the Zorroh Portfolio Analyzer to run this test.
🧭 Inflation Portfolio Test
- Portfolio 1 (Baseline): SPY 60% / AGG 40% — the classic 60/40
- Portfolio 2 (Inflation Tilt): SPY 50% / AGG 20% / GLD 15% / DBC 15% — adds gold and broad commodities
- Portfolio 3 (Equity & Real Assets): SPY 70% / VNQ 15% / GLD 15% — equity-heavy with real estate and gold, no bonds
Benchmark: SPY | Date range: 2010–2026 | Rebalancing: Annual
What to look for:
- 2022 calendar year performance — the inflation stress test year. Which portfolio held up best when CPI hit 9.1%?
- CAGR — does the inflation tilt meaningfully change long-run returns?
- Max Drawdown — does adding commodities actually reduce the worst-case loss?
- Correlation matrix — how much does GLD actually diversify against SPY and AGG?
There are no right answers here. The point is to see the tradeoffs clearly, rather than guessing.
The Bottom Line
Inflation is not something that happens to other people. It is happening to your savings account right now — quietly, every month, without anyone sending you a bill.
The good news: understanding it is most of the battle. The rest is building a portfolio designed to stay ahead of it over time — not by making dramatic moves, but by staying diversified, staying invested, and not letting fear of volatility push you into the one asset class (cash) that is almost guaranteed to lose to inflation in the long run.
If you are ready to start putting this into practice, our guides on how to build your first investment portfolio walk you through the process step by step.
Disclaimer:
The content on this blog (Zorroh) is provided for general informational and educational purposes only. It is not intended as investment, financial, tax, legal, or other professional advice. Past performance is not indicative of future results. Investing involves risk, including possible loss of principal. Always conduct your own research or consult a qualified professional before making investment decisions.