Partial Internal Model Integration Technique 4 | Prudential Regulation Authority Handbook & Rulebook
Prudential Regulation Authority Rulebook

Prudential Regulation Authority Rulebook

Part

Solvency Capital Requirement - Internal Models

Chapter

Partial Internal Model Integration Technique 4

Printed on: 04/07/2025

Rulebook at: 05/02/2025


16F

Partial Internal Model Integration Technique 4

16F.1

The basic SCR must be equal to the following:

BSCR=P2+SS2+∑j=k+1n2Sj(∑i=1lCorr(i,j)⋅Pi+∑i=l+1kCorr(i,j)⋅Si)+SCRint

where:

  1. (1) P denotes the capital requirement reflecting the risks that are within the scope of the partial internal model, generated by the partial internal model;
  2. (2) Ss denotes the capital requirement derived by applying the standard formula for the basic SCR only to the risks not covered by the partial internal model;
  3. (3) k denotes the number of modules of the standard formula that are within the scope of the partial internal model;
  4. (4) n denotes the number of modules of the standard formula;
  5. (5) l denotes the number of modules of the standard formula for each of which the capital requirement can be generated by the partial internal model;
  6. (6) Corr(i,j) denotes the correlation parameter of the standard formula for the aggregation of modules i and j;
  7. (7) Pi denotes the capital requirement for the module i of the standard formula, generated by the partial internal model;
  8. (8) Si and Sj denote the capital requirements for modules i and j of the standard formula, respectively, which are calculated in the following way:
    1. (a) the module is generated by the standard formula provided that the module does not consist of sub-modules; and
    2. (b) the module is calculated in accordance with 16F.2 provided that the module consists of sub-modules;
  9. (9) SCRint denotes the capital requirement for intangible asset risk as set out in Solvency Capital Requirement - Standard Formula 3F1.
  • 31/12/2024

16F.2

For all modules of the standard formula referred to in 16F.1(8)(b), the capital requirement of a particular module must be generated by the formula set out in 16F.1, applying the following specifications:

  1. (1) P denotes the capital requirement reflecting the risks of the sub-modules of that particular module which are within the scope of the partial internal model, generated by the partial internal model;
  2. (2) Ss denotes the capital requirement derived by applying that particular module only to the risks not covered by the partial internal model;
  3. (3) k denotes the number of sub-modules of that particular module that are within the scope of the partial internal model;
  4. (4) n denotes the number of sub-modules of that particular module;
  5. (5) l denotes the number of sub-modules of that particular module for each of which the capital requirement can be generated by the partial internal model;
  6. (6) Corr(i,j) denotes the correlation parameter of the standard formula for the aggregation of sub-modules i and j of that particular module;
  7. (7) Pi denotes the capital requirements for the sub-module i of that particular module, generated by the partial internal model;
  8. (8) Si and Sj denote the capital requirement for sub-modules i and j of that particular module, respectively, which are calculated in the following way:
    1. (a) the sub-module is generated by the standard formula provided that the sub-module does not consist of other sub-modules; and
    2. (b) the sub-module is calculated in accordance with 16F.3 provided that the sub-module consists of other sub-modules;
  9. (9) SCRint must be set to zero.
  • 31/12/2024

16F.3

For all sub-modules of the standard formula referred to in 16F.2(8)(b), the capital requirement of a particular sub-module must be generated by the formula set out in 16F.1, applying the following specifications:

  1. (1) P denotes the capital requirement reflecting the risks of the sub-modules of that particular sub-module which are within the scope of the partial internal model, generated by the partial internal model;
  2. (2) Ss denotes the capital requirement derived by applying that particular sub-module only to the risks not covered by the partial internal model;
  3. (3) k denotes the number of sub-modules of that particular sub-module that are within the scope of the partial internal model;
  4. (4) n denotes the number of sub-modules of that particular sub-module;
  5. (5) l denotes the number of sub-modules of that particular sub-module for each of which the capital requirement can be generated by the partial internal model;
  6. (6) Corr(i,j) denotes the correlation parameter of the standard formula for the aggregation of sub-modules i and j of that particular sub-module;
  7. (7) Pi denotes the capital requirement for the sub-module i of that particular sub-module, generated by the partial internal model;
  8. (8) Si and Sj denote the capital requirements for sub-modules i and j of that particular sub-module, respectively, which are calculated in the following way:
    1. (a) the sub-module is generated by the standard formula provided that the sub-module does not consist of other sub-modules; and
    2. (b) the sub-module is calculated in accordance with this paragraph provided that the sub-module consists of other sub-modules;
  9. (9) SCRint must be set to zero.
  • 31/12/2024