How much should you believe your own data?
Credibility is taught as a formula and applied as a reflex. The harder question is what sits on the other side of the blend, and most assumption bases never say.
An independent actuarial and consulting practice, deepest in life insurance and working across the wider insurance industry. The work spans experience investigations and assumption setting, reporting under IFRS 17 and SAM, embedded value and analysis of surplus, Prophet modelling, product pricing, risk and capital, data analytics, and agricultural consulting.
Read on ↓Plate 01 — receding ridgelines at first light. Long lens, compressed depth, no subject.
In Tshivenda, bono means vision — not simply what the eye can see, but what the mind can perceive before it happens.
It is the quality once entrusted to those who could read the present clearly enough to speak, with confidence, about what lay ahead.
Actuarial science exists to do the same thing with mathematics that vision has always tried to do with insight. Every mortality table, every valuation, every model is an attempt to look further than today — to take a population, a pension fund, a portfolio or a business and say, with disciplined confidence: here is what tomorrow is likely to hold, and here is how to prepare for it.
What began three centuries ago with a table of births and deaths has become one of the most rigorous forms of foresight we have — and life insurance is where that table still does its work. A mortality basis, a lapse curve, an account of where this year’s profit actually came from: each one is a claim about a future nobody has seen yet, made carefully enough to build a balance sheet on.
That is the idea Bono is built on. Where others see uncertainty, we see a pattern waiting to be modelled.
The name carries both meanings deliberately — the ancestral idea of vision as wisdom, and the modern practice of vision as mathematics.
Practice
The depth is in life offices, where the vocabulary of surplus, credibility and contractual service margin is already spoken on day one. The same methods carry directly into short-term and other insurers, into agriculture, where we also farm, and into broader business consulting wherever the analysis rather than the product is the difficult part.
Open instrument · illustrative portfolio
An experience investigation is not a division sum. The same actual-versus-expected ratio means something entirely different on eight hundred claims than on eighty, and the decision about how far to move your assumption is the part clients actually pay for. Move the exposure and watch the confidence intervals — and the recommendation — change.
Partially credible
0.96
Limited fluctuation credibility, Poisson claim counts, complement of credibility set to the standard table. A live investigation would separate trend from level, test for heterogeneity across the band structure, and state the exposure basis.
Insights
Notes on assumptions, reporting, modelling, analytics and review.
Credibility is taught as a formula and applied as a reflex. The harder question is what sits on the other side of the blend, and most assumption bases never say.
Most actuarial reporting fails at the last mile. The numbers are right, the refresh is automated, and the person it was built for still asks for it in an email.
The same walk serves the Prudential Authority and the executive committee. It rarely serves both well without being rebuilt for the second audience.
Standing
Everything here is checkable. Nothing is claimed that a procurement officer cannot confirm in ten minutes.
Enquiries
The useful conversations begin with a basis nobody trusts, or a model nobody wants to sign — rarely with a scope document.
info@bonoactuaries.co.za
+27 76 322 1489
Paulshof, Johannesburg · work delivered nationally and remotely