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

Bidenomics better balances fiscal deficits and government expenditures with new corporate and capital income tax hikes.

Apple Boston

2021-08-01 07:26:00 Sunday ET

Bidenomics better balances fiscal deficits and government expenditures with new corporate and capital income tax hikes.

The Biden administration launches economic reforms in fiscal and monetary stimulus, global trade, finance, and technology. President Joe Biden proposes s

+See More

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Becky Berkman

2020-08-05 08:33:00 Wednesday ET

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models. Peter Senge (2006) &nb

+See More

Warren Buffett points out that American children will be better off than their parents in the next decades.

Dan Rochefort

2018-01-05 07:37:00 Friday ET

Warren Buffett points out that American children will be better off than their parents in the next decades.

Warren Buffett cleverly points out that American children will not only be better off than their parents, but the former will also enjoy higher living stand

+See More

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fundamental analysis of Nvidia (U.S. stock symbol: $NVDA).

Peter Prince

2025-09-24 09:49:53 Wednesday ET

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fundamental analysis of Nvidia (U.S. stock symbol: $NVDA).

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fund

+See More

President Trump may reluctantly sign the congressional border wall deal in order to avert another U.S. government shutdown.

Apple Boston

2019-02-13 11:00:00 Wednesday ET

President Trump may reluctantly sign the congressional border wall deal in order to avert another U.S. government shutdown.

President Trump may reluctantly sign the congressional border wall deal in order to avert another U.S. government shutdown. With his executive power to decl

+See More

President Donald Trump criticizes Amazon over taxes and jobs.

Monica McNeil

2017-08-19 14:43:00 Saturday ET

President Donald Trump criticizes Amazon over taxes and jobs.

In a recent tweet, President Donald Trump criticizes Amazon over taxes and jobs. Without providing specific evidence, Trump accuses of the e-commerce retail

+See More