Library

Home > Library > Algorithmic credit portfolio segmentation

Algorithmic credit portfolio segmentation

Author Andy Yeh Alpha

This research article proposes a new algorithmic model for credit portfolio segmentation.

Description:

Under the new Basel bank capital framework, each bank must group its retail exposures into multiple segments with homogeneous risk characteristics. The U.S. regulatory agencies believe that each bank may use its internal risk models for the loan-level risk parameter estimates such as probability of default (PD) and loss given default (LGD) to group individual exposures into the resultant segments with homogeneous risk attributes. In stark contrast to the conventional decision-tree method, we propose a new algorithmic technique for retail consumer loan portfolio segmentation. This new technique identifies the optimal number of segments, sorts the individual loan exposures into the various segments, and then leads to the minimal degree of risk heterogeneity in comparison to the baseline equal-bin and quantile-bin schemes. Furthermore, we analyze the Monte Carlo implicit asset correlation values for the retail loan segments over time to help assess the implications for bank capital measurement. The best-fit method for retail credit portfolio segmentation results in some capital relief that serves as an economic incentive for the bank to invest in this alternative segmentation. This positive outcome accords with the core principle of statistical conservatism that the financial econometrician enshrines in the Basel regulatory requirements for bank capital measurement.

Blog+More

President Trump tweets that Apple can avoid tariff consequences by shifting its primary supply chain from China to America.

Olivia London

2018-09-11 18:36:00 Tuesday ET

President Trump tweets that Apple can avoid tariff consequences by shifting its primary supply chain from China to America.

President Trump tweets that Apple can avoid tariff consequences by shifting its primary supply chain from China to America. These Trump tariffs on another $

+See More

Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal growth, success, virtue, happiness, and fulfillment in life, business, innovation, and entrepreneurship.

Jonah Whanau

2025-06-28 10:39:00 Saturday ET

Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal growth, success, virtue, happiness, and fulfillment in life, business, innovation, and entrepreneurship.

Former New York Times science author and Harvard psychologist Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal

+See More

Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2024.

Dan Rochefort

2024-02-04 08:28:00 Sunday ET

Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2024.

Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2024. Our proprietary alpha investment model outperforms the ma

+See More

President Trump indicates that he would consider an interim Sino-American trade deal in lieu of a full trade agreement.

Apple Boston

2019-10-03 17:39:00 Thursday ET

President Trump indicates that he would consider an interim Sino-American trade deal in lieu of a full trade agreement.

President Trump indicates that he would consider an interim Sino-American trade deal in lieu of a full trade agreement. The Trump administration defers high

+See More

Peter Schuck analyzes U.S. government failures and structural problems in light of both institutions and incentives.

Dan Rochefort

2023-04-28 16:38:00 Friday ET

Peter Schuck analyzes U.S. government failures and structural problems in light of both institutions and incentives.

Peter Schuck analyzes U.S. government failures and structural problems in light of both institutions and incentives. Peter Schuck (2015)   Why

+See More

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance.

James Campbell

2019-05-17 15:24:00 Friday ET

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance.

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance. People can leverage stock market investments an

+See More