Illustrative: the exceedance probability of a hazard as a sheet, return-period isolines and simulated events

Risk Academy, led by the Nexus Consortium · Finance and Economics

Actuarial science

Actuarial science covers the quantitative methods of insurance and pensions: loss distributions, extreme value methods, dependence, credibility with sparse data, mortality and longevity, capital models and pricing under a changing climate, with validation of the models used.

Map actuarial science on a real place

01Model

The model, step by step

The model

From a claims history to a premium: how much weight a policyholder's own record deserves

DataModelGateDecisionStandard it teachesStandard it relies onNeighbouring discipline

6 steps
Credibility premium (pure, per year)
933
Years observed
5
Own mean claims
1200
Portfolio mean claims
800
/

The model From a claims history to a premium: how much weight a policyholder's own record deserves

02Scope

What the discipline covers

The subtopics its courses and labs teach.

Actuarial science: 0 primary courses open, 1 in preparation and 1 also taught here, across 8 subtopics. Courses: RAT-242 L3 in preparation, RAN-310 L2 also taught here.20L1L2L3L401
Actuarial science at a glance
  • Open, 0
  • In preparation, 1
  • Also taught here, 1
  • Subtopics, 8
Course codes from the curriculum; study levels L1 to L4.
Courses
In development
Levels
In development
Labs
Exposure lab
  • Loss distributions
  • Extreme value methods
  • Dependence and correlation
  • Credibility and sparse data
  • Mortality and longevity
  • Capital and solvency models
  • Pricing under climate change
  • Quantitative model validation

Courses in development extend the scope to one further subject: Mortality and longevity risk.

03The discipline

The field and its scope

For actuaries, quantitative analysts and students who need to fit, validate and use the loss, mortality and capital models that insurance and pensions depend on.

04Measures

Quantities and units

05Methods

Methods and their limits

Each method is listed with what it assumes and where it fails.

06Debates

What the field debates

07Bodies and data

Bodies that set practice, and the data they publish

Bodies and standards are named so learners can find and apply their published work; the Academy teaches their use and links to the publisher, and no affiliation is implied.

08Simulator

Run the discipline's simulator

Actuarial science's own model, as a live chart: move each parameter and read how the outputs respond.

09Maps

Build a twin of any place

Search any place or open the world; the layers and generators follow actuarial science on the planet map, the globe and in 3D.

Houston and the Ship Channel: a flat plan of the faculty twin. Terrain 0 to 66 m; 30 power plants, 11,875 MW; 7 refineries and chemical works; 2 port land; 29 named works; 154 named industrial sites; Surface water extent, OPERA DSWx (HLS): read live when the 3D twin opens; Built-up and settlement extent, HBASE 2010: read live when the 3D twin opens. Contours every 10 metres from the elevation grid; power plants as marks; refineries, terminals and industrial sites as marks.
Houston and the Ship Channel, United States. Flat plan of the same data: relief as contours from the inline grid, the plants by capacity, the industrial points by kind and the numbers below. The 3D twin opens on devices with WebGL once its data and library have been checked.
  • Terrain 0 to 66 m
  • 30 power plants, 11,875 MW
  • 7 refineries and chemical works
  • 2 port land
  • 29 named works
  • 154 named industrial sites
  • Surface water extent, OPERA DSWx (HLS): read live when the 3D twin opens
  • Built-up and settlement extent, HBASE 2010: read live when the 3D twin opens
Credits and dates per layer are listed under the stage. Relief in the twin is exaggerated ×1.5 for legibility.

Drag to move, right drag or Shift with a drag to turn and tilt, Ctrl with the wheel to zoom. Keyboard: arrows move, Shift with arrows turn and tilt, + and - zoom, 0 resets, V steps through the views, Escape clears.

Flat plan of the same data: relief as contours from the inline grid, the plants by capacity, the industrial points by kind and the numbers below. The 3D twin opens on devices with WebGL once its data and library have been checked.

The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).

10Nexus Standards

Nexus Standards it teaches and relies on

The Nexus Standards the discipline teaches toward, grouped by master standard, with the disciplines that teach each.

11Research hub

Research hub: papers, preprints and datasets

Open scholarly sources searched with the subject terms of Actuarial science.

Search termsActuarial science; Loss distributions; Extreme value methods; Dependence and correlation; Credibility and sparse data; Mortality and longevityDerived from the Risk Academy page on Actuarial science.

  • OpenAlexlisted for reference; not queried
  • Crossreflisted for reference; not queried
  • DataCitelisted for reference; not queried
  • Zenodolisted for reference; not queried
  • arXivlisted for reference; not queried
  • Europe PMClisted for reference; not queried
  • OpenAIRE Graphlisted for reference; not queried

No source is enabled for live display on this site yet: the sources are listed for reference and none is queried. Once the publisher of record enables a source after its terms are reviewed, recent works are listed here. Metadata and links only: title, authors, venue, year, type, open-access status and licence as each source records them; works are listed for orientation, not reviewed or endorsed.

12Hub

Research and tools

Research and preprints as they are published, by discipline, with the faculty's other tools.

The hub lists the newest research and preprints for Actuarial science, each with its source and date. Open the research hub

13What is changing now

What is changing now

Recent developments in actuarial science, each with its source; sources checked on 16 October 2026.

14Courses

Courses in this discipline

Courses for this discipline are in development; until they open, study it through the connected courses and open lessons below.

The courses from connected disciplines below also teach this field.

15Also taught here

Courses from connected disciplines that also teach this field

Each course has its primary discipline elsewhere and teaches this field as part of its scope.

From connected disciplinesIn development

  1. RAN-310Risk in Insurance and ReinsuranceIn developmentNexus, L2 Intermediate, 12 hours (estimate), primary discipline: Insurance, reinsurance and protection gaps
16Labs

How the subject is practised in labs

LabWhat you do in itCourses using it
Exposure labOverlay people and assets with hazard footprints1
17Technology in this area

How technology helps and what risk it brings

18Achievements

Achievements in this discipline

20Where this is practised

Where the subject is practised

  • The Global Risks Alliance (GRA)Actuarial and Quantitative RiskCapital and solvency models, Climate-adjusted pricing questions, Credibility and sparse data, Dependence and correlation, Extreme value methods, Loss distributions, Quantitative model validation, Mortality and longevity

Field platforms of the ecosystem where the subject is studied and applied.

21Practised in

The two Nexus Foundry systems where it is practised

Nexus Foundry system pages describe what each system and its rooms are designed to do; the courses teach the methods these systems apply.

22Across the ecosystem

Across the ecosystem

24References

Core references and where to begin

Start with Coles, then Embrechts, then Bühlmann.

NRNexus Reports gateway · GW-ACADEMY

Contribute to Nexus Reports from this page.

Nexus Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

Risk Academy
Actuarial science

Prepare with a related course

Open courses in connected disciplines teach the methods this discipline will build on.

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