Debtor Behavior Modeling Using Generalized Beta Distributions

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Solution Overview

Problem

Current credit modeling techniques, such as Business Credit Data Interchange (BCDI), are insufficiently accurate in predicting debtor behavior and financial consequences of credit and collection events, as they fail to differentiate creditor relationships and do not adequately account for the timeliness of payments, leading to inaccurate risk assessment and scoring.

Innovation Solution

A computer-implemented method and apparatus that models debtor behavior using historic data, creditor data, and Business Credit Data Interchange data through generalized linear modeling techniques, such as the Generalized Beta of the Second Kind and G-and-H families of distributions, to determine the probability of credit and collection events, enabling customized creditor models and expected utility loss calculations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If statistical-based modeling using credit bureau information is used to assess payment risk, then credit assessment can be performed based on past history, but the accuracy of predicting debtor behavior and financial consequences is insufficient

Engineering Contradiction:
Improveaccuracy of predicting debtor behaviorVSAvoidfailure to differentiate creditor relationships
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent segments the credit assessment model into multiple components: (1) debtor-specific factors, (2) creditor-specific factors, and (3) debtor-creditor relationship factors. This segmentation allows the model to capture nuanced variations in payment behavior across different creditor relationships while maintaining overall predictive accuracy. Each segment contributes independently to the final probability assessment, enabling more precise measurement of debtor behavior.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces additional dimensions to the traditional credit assessment by incorporating creditor-specific characteristics and relationship-specific dynamics. Instead of a single-dimensional credit score, the model adds dimensions for creditor industry, creditor size, relationship duration, and payment timing patterns. This multi-dimensional approach resolves the contradiction by capturing information that was previously lost in aggregate statistical modeling.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If traditional credit modeling is used, then credit assessment can be performed efficiently, but it does not adequately account for the timeliness of payments

Engineering Contradiction:
Improveefficiency of credit assessmentVSAvoidassessment of payment timeliness
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent transforms the credit assessment from using static credit scores to using dynamic probability parameters that capture payment timing behavior. The model estimates the probability of payment at different time points and the distribution of payment delays. By changing the parameters from aggregate credit ratings to time-specific probability distributions, the model achieves both computational efficiency and precise measurement of payment timeliness.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical application of fixed credit scoring thresholds with a probabilistic modeling approach. Instead of applying rigid cutoff rules to static scores, the system uses statistical distributions to model payment behavior and calculates expected losses based on probability-weighted outcomes. This substitution enables efficient computation while capturing the nuanced timing patterns of payments.

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

3Adaptability or versatility

If aggregate credit scoring is used, then risk assessment can be performed broadly, but it leads to inaccurate risk assessment and scoring for individual creditor relationships

Engineering Contradiction:
Improvebroad risk assessment capabilityVSAvoidaccuracy of individual creditor relationship assessment
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent makes the credit assessment model dynamic by allowing parameters to vary across different debtor-creditor relationships. The model adapts to each relationship by incorporating creditor-specific characteristics and relationship-specific payment patterns. This dynamic approach maintains broad adaptability across different scenarios while achieving precise assessment for individual relationships through customized parameter estimation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies local quality by tailoring the assessment to each specific creditor relationship rather than applying a uniform model. Each relationship receives customized weighting of factors based on the creditor's industry, size, and risk profile. This local customization ensures accurate assessment for individual relationships while the overall framework maintains versatility across diverse creditor types through standardized methodology.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8121939B2Method and apparatus for a model assessing debtor behavior
Publication Date: 2012.02.21 PREDICTIVE METRICS
  • US8121939B2 patent drawing
  • US8121939B2 patent drawing
  • US8121939B2 patent drawing

AI summary

A computer implemented method for assessing different expected payment behavior of a debtor with respect to different creditors.