Why does a generation typically catch only one super-sized bull market? After every major top, the after-the-fact explanations number in the thousands: liquidity, policy, sentiment, external shocks. Each one is self-consistent; each one is a rearview-mirror story. Stretch the time scale to a whole generation, and none of them holds up. The real cause may not lie in sentiment at all. It lies in the route money takes — because a country’s money issuance and withdrawal follow the human life cycle.
The Four Stations of Money
There is a framework that turns this idea into a model: the household life-cycle currency loop. It aligns a country’s money issuance and withdrawal with the span of a resident’s life, in four stations — birth: money is issued; working years: industry expands, equities bull; family formation: property rises; retirement: money is withdrawn, assets come under pressure.
In plain words: from the day a person is born, society starts spending money on that person. In the working years, income turns into savings and investment, industry expands, and the stock market runs up. At family formation, buying a home becomes the largest single expense, and property rises. After retirement, savings are gradually pulled out of markets to fund old age, money flows back, and assets come under pressure. The relay order of these four stations traces the coordinates of the super-long bull and bear cycles in property and equities.
The model’s own positioning is explicit: it does not predict markets, it verifies them. What it offers is a large range, not a point target. Once the range is right, many of those after-the-fact explanations become unnecessary.
Counting Heads Versus Following Money
The first objection is the most direct: this is demography under a different name. The population curve was written decades ago; the model adds nothing.
The objection sounds solid but aims at the wrong target. A population curve only counts people; this model tracks the route of money. The size of a generation does not change, but when that money enters industry, when it enters property, and when it starts flowing back — that determines the relay order of asset markets. Counting heads and following the money are two different subjects. Demography answers the first; this model answers the second. Identical headcounts with different routes produce entirely different asset sequences.
The Script Can Be Delayed; the Stages Cannot Be Canceled
The second objection is harsher: each generation lives its own way. Young people today do not follow the birth-work-marriage script, so the model’s premise has collapsed.
The premise has not collapsed; the tempo has shifted. The order of the script can be delayed — later career starts simply push the industry-expansion window back; later family formation simply drags the start of the property cycle later. The stages of money cannot be canceled: the withdrawal pressure of a retirement peak does not disappear because marriages happen late. This model reads changes in tempo, not a fixed calendar. Delay is not absence — a bull market with a postponed window is still a bull market.
What Is a Large Range Good For?
The third objection is the most practical: even a correct range cannot be turned into trades. Ordinary people cannot control monetary policy, so learning this is useless.
The use is not prediction but expectation discipline. Knowing whether money is in the issuance phase or the withdrawal phase tells what to expect from property and equities — the same asset deserves a different lens in each phase. A large range sets the ceiling of exposure; that is exactly the division of labor this framework has alongside the interest-rate cycle. Learning it is not about commanding the central bank; it is about governing one’s own expectations. A generation gets one super-sized cycle, and missing one station by tempo is not a one- or two-year wait.
Where It Does Not Apply
Draw the boundary yourself: this model offers only super-long ranges, not sectors — sector rotation belongs to another piece. It concerns the quantity and tempo of money, not rates — rates are the price of money, covered by a separate set of principles. It and the nested economic-cycle model run on two different clocks and must not be mixed. Nor does it judge which station we are in right now — the model only verifies; judgment is the user’s homework.
So the question shifts from “why did this bull market come” to another one: stop guessing sentiment and follow where the money goes — which station is it at?
