Inflation has a bad reputation that is deserved but poorly understood. It gets described as a general theft, as though everybody lost the same thing at the same speed. That is wrong, and the mistake is expensive, because it hides the only question that matters: am I on the side that takes, or the side that gives?
The answer does not depend on your view of monetary policy. It depends on one feature of your balance sheet.
The mechanism, in one sentence
Inflation erodes the real value of fixed sums expressed in money. It does not care which way they point.
If you hold a fixed sum — a savings balance, a capital-guaranteed fund, a bond, a loan you have made — inflation takes from you. What you get back will buy less.
If you owe a fixed sum — a fixed-rate mortgage, for instance — inflation gives to you. You repay in money worth less than the money you borrowed, and your salary, if it follows prices even partly, makes the instalment progressively lighter relative to your income.
Same force. The sign changes with your position.
Money claims
Savings accounts, capital-guaranteed funds, bonds held. A fixed sum to receive: inflation cuts its purchasing power, and a positive nominal rate is not enough - only the gap against prices counts.
Fixed-rate debt
A mortgage, a personal loan. A fixed sum to repay: inflation cuts its real weight. This is the side that receives, and almost nobody counts it as such.
Real assets
Property, company shares, commodities. Neither by nature: their price may follow prices, with a lag, in jerks, and with no guarantee.
The table does not say what to do. It says which side each line of a balance sheet sits on when prices rise, which is an observation and not a strategy.
What makes the reasoning treacherous
Three things fool almost everybody.
A positive nominal rate is falsely reassuring. A savings account paying 3% while prices rise 4% loses purchasing power, on a statement that shows a gain. It is the most comfortable form of loss there is, precisely because it does not look like one. The only figure that answers is the gap between the rate and inflation, never the rate on its own.
Your inflation is not the inflation. The published index is a weighted average of an average basket. If rent is 40% of your spending and rents rise faster than the average, your personal inflation is higher than the one in the papers. Two households in the same country live through different inflations, and the one with more unavoidable spending usually gets the worse of it.
The effect is invisible in the short run and brutal in the long run. Two percent a year looks negligible over a year. Over twenty years, the same sum buys about a third less. It is the slowest mechanism in personal finance, and that is exactly why it wins: nobody reacts to an erosion they cannot feel from one year to the next.
The two symmetric mistakes
The common mistake is holding too much money because money feels safe. An emergency reserve is necessary and nobody argues with that; what costs is the reserve that has tripled without a decision, because "we will sort it out later".
The opposite mistake exists too, and gets discussed less. Concluding "inflation punishes cash, so I must get out of it" leads to decisions taken out of fear rather than arithmetic, usually at the moment anxiety peaks, which is the worst moment to decide anything. Inflation is an argument for knowing how much money you hold and why. It is not an argument for hurrying.
What your figures say, and the news never will
Three observations, all checkable at home, none requiring a forecast:
How much do you hold in fixed sums? Add up current accounts, savings accounts, capital-guaranteed funds. That is your exposure on the losing side. Many people find a total far above what they assumed, simply because it sits across five accounts.
How much do you owe at a fixed rate? That is your exposure on the receiving side. It partly offsets the first, and almost nobody nets the two mentally.
What is the gap between what your emergency savings earn and prices? Not the yield. The gap. It is the only figure that says whether your reserve holds its value or melts quietly.
None of those three answers depends on what a central bank does next. They depend on what you hold, and that is the part you can look at tonight.