Operational Risk Back-Testing Using Quantitative Regression Models

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Solution Overview

Problem

Current risk management practices in the financial industry lack a quantitative method for back-testing operational risk and control assessments against actual losses, relying on qualitative reviews and trend analyses, which are subjective and do not validate the accuracy of risk-based capital adjustments.

Innovation Solution

A computer-assisted method using regression models for quantifying risk and control assessments, translating risk assessments into risk states and points, and performing data and statistical analysis to compare against financial losses, including regression and correlation analysis, to adjust risk-based capital and forecast step-ahead losses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If qualitative review or simple trend analysis is used to compare risk assessments against losses, then the process is simple and easy to perform, but the measurement precision and validation accuracy are insufficient

Engineering Contradiction:
Improvevalidation accuracyVSAvoidprocess complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the manual, qualitative review process with an automated computer system that performs statistical analysis and regression modeling. The computer system automatically compares risk assessments against actual losses using quantitative methods, eliminating the need for subjective human judgment while improving measurement precision and validation accuracy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent transforms subjective qualitative risk assessments into objective quantitative parameters through statistical analysis. By converting risk assessment data into measurable parameters that can be analyzed through regression models, the system enables precise validation against actual losses while maintaining computational efficiency.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If subjective opinions and qualitative outputs are derived from trend analysis, then the ease of operation is maintained, but the reliability and objectivity of risk validation are compromised

Engineering Contradiction:
ImproveobjectivityVSAvoidoperational simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The computer system performs self-service by automatically conducting statistical analysis and generating objective validation results without requiring human intervention for subjective judgment. The system independently compares risk assessments against losses, produces quantitative outputs, and validates accuracy, thereby enhancing objectivity while maintaining operational simplicity through automation.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If no quantitative back-testing is performed, then the device complexity and computational requirements are low, but the ability to adjust risk-based capital and forecast losses accurately is limited

Engineering Contradiction:
Improveforecasting accuracyVSAvoidmodeling complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements feedback by systematically comparing risk assessments against actual losses through regression analysis. The computer system uses this feedback to validate the accuracy of risk assessments, identify discrepancies, and enable data-driven adjustments to risk-based capital allocations, thereby improving forecasting accuracy through iterative validation.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8756152B2Operational risk back-testing process using quantitative methods
Publication Date: 2014.06.17 BANK OF AMERICA CORP
  • US8756152B2 patent drawing
  • US8756152B2 patent drawing
  • US8756152B2 patent drawing

AI summary

Methods, computer-readable media, and apparatuses are disclosed for quantifying risk and control assessments. The risk includes both residual risk and direction of risk. Various aspects of the invention quantitatively compare the risk and control assessments against step-ahead losses using special regression models that are particularly applicable to this kind of data. The empirical comparison may be performed on both loss event frequency and severity in two different and separate dimensions. The empirical comparison may also be performed using losses extracted by even occurrence and event settlement dates in two separate dates.