Guides
Part of Reading richest rankings with a sceptical eye
Richest rankings comparison: the practical version
Comparing two rich lists side by side reveals how much either ranking actually knows about any given fortune, its hidden assets, and the secretive trusts behind it.
You cannot check a rich list against the truth, because the truth is not public. You can check it against another list. Two independent attempts at the same fortune should land close together. They do not, and the size of the gap is the most useful number in the genre.
What to take away
- The Forbes World's Billionaires list and the Bloomberg Billionaires Index cover the same people and still disagree by billions on individual fortunes.
- The Hurun Global Rich List counts Chinese wealth far more completely than either, because it tracks domestic share registers the others miss.
- The Sunday Times Rich List counts families and estates; the Forbes 400 counts individuals and excludes non-citizens.
- Most of any gap comes from population boundaries, valuation dates and private-company pricing, not from bad research.
- Agreement between two lists means nothing unless they gathered their figures separately.
The four lists worth comparing
Forbes World's Billionaires publishes each spring with a fixed valuation date, which makes it the easiest list to compare against a later one. It counts individuals, not families, and it prices private holdings from comparable public companies.
Four rich lists compared
Forbes
- Update
- Annual spring
- Unit
- Individuals
- Coverage
- Global
- Private pricing
- Public comparables
Bloomberg
- Update
- Daily trading
- Unit
- Individuals
- Coverage
- Global
- Private pricing
- Market marks
Hurun
- Update
- Annual
- Unit
- Individuals
- Coverage
- Global
- Private pricing
- Chinese registers
Sunday Times
- Update
- Annual
- Unit
- Families
- Coverage
- UK only
- Private pricing
- UK estates
Bloomberg Billionaires Index updates every trading day and marks public stakes to the market in real time. That daily cadence makes it a different instrument, not a better one: it captures a Tuesday, while Forbes captures a year.
Hurun Global Rich List is the only major list that reads Chinese domestic share registers directly. For anyone whose wealth sits in mainland operating companies, Hurun is often the most complete of the three, and the one Western readers have never opened.
The Sunday Times Rich List covers UK residents only and counts family fortunes as a single entry. It is the clearest example of a boundary decision made in public: the same house appears once, not four times.
How to run the comparison
- Pick two lists with overlapping populations published within a few weeks of each other.
- Take the same twenty names from each.
- Record the figure and the rank for every name.
- Compute the spread between the two figures.
- Count the names that appear on one list and not the other.
- Count the positions each name moves.
Steps five and six carry the most information and get skipped. Absence from a list is a boundary decision made silently. A large rank move with a small figure gap shows how crowded the middle of the distribution is, where rank is unstable even when the estimates agree.
How to compare two lists
- Pick two overlapping lists close in date
- Take the same twenty names
- Record figure and rank
- Compute the spread
- Count names on one list only
- Count positions each name moves
What the gaps are made of
| Source of disagreement | Why it moves the number |
|---|---|
| Population boundary | Individuals against families, citizens against residents, living against estates |
| Valuation date | A daily index and an annual list are pricing different days |
| Currency basis | A list denominated in pounds reorders itself as sterling moves |
| Private company pricing | Different comparables and different multiples |
| Control against ownership | Assets in trusts and partnerships counted by one list and not the other |
| Debt treatment | One may net some borrowing, the other none |
| Subject cooperation | A person who engaged with one compiler and not the other |
None of these rows is a research failure. They are private choices a reader cannot see, and together they produce most of the divergence you will find.
What the exercise proves
If two serious attempts at one fortune differ by billions, at least one is substantially wrong and no reader can tell which. The argument against the genre is made entirely from the genre's own published output.
It also kills the corroboration illusion. When several sites agree, check whether they are independent attempts or copies. Copies agreeing with copies is the common case, and it confirms nothing. Why the format keeps producing this is on richest rankings, and the source hierarchy that would settle it, if the sources existed, is on estimate methodology.
A comparison worth making instead
Set a rich list beside a measurement with a published design. The Federal Reserve's distributional financial accounts build household wealth from a documented survey and make no claim about any individual. The Bureau of Labor Statistics publishes its methods in full in its Handbook of Methods.
One states its population, its design and its limits. The other names individuals and states nothing. How the same contrast appears for company officers is on executive net worth, and for lifetime totals on career earnings.
Common questions
If two lists agree closely on someone, is that figure reliable?
Only if the two arrived at it independently. Where one inherited from the other, or both inherited from a common ancestor, the agreement carries no information at all.
Which list should I trust when they disagree?
Neither, on the figure. You can reasonably trust that the person is wealthy, since both said so. The magnitude is exactly what the disagreement tells you is unknown.
Is the disagreement getting smaller over time?
Convergence would be a bad sign rather than a good one. It is more likely to reflect compilers reading each other than the underlying facts becoming available.
