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

Treasury bond yield curve inversion often signals the next economic recession in America.

Monica McNeil

2018-10-11 08:44:00 Thursday ET

Treasury bond yield curve inversion often signals the next economic recession in America.

Treasury bond yield curve inversion often signals the next economic recession in America. In fact, U.S. bond yield curve inversion correctly predicts the da

+See More

Many successful business organizations develop their distinctive capabilities and unique value propositions for strategic reasons.

Jacob Miramar

2020-09-17 12:28:00 Thursday ET

Many successful business organizations develop their distinctive capabilities and unique value propositions for strategic reasons.

Many successful business organizations develop their distinctive capabilities and unique value propositions for strategic reasons. Paul Leinwand and Cesa

+See More

American exceptionalism often turns out to be the heuristic rule of thumb for better economic growth, low and stable inflation, full employment, and macro-financial stability.

Apple Boston

2026-07-01 11:29:00 Wednesday ET

American exceptionalism often turns out to be the heuristic rule of thumb for better economic growth, low and stable inflation, full employment, and macro-financial stability.

In recent years, higher American economic growth has been impressive both by historical standards and in comparison to the rest of the world. American excep

+See More

What are the mainstream technological advances in the global auto industry?

Chanel Holden

2024-04-30 09:30:00 Tuesday ET

What are the mainstream technological advances in the global auto industry?

With clean and green energy resources and electric vehicles, the global auto industry now navigates at a newer and faster pace. Both BYD and Tesla have

+See More

Snap cannot keep up with the Kardashians because its stock loses $1 billion market value after Kylie Jenner tweets about her decision to leave Snapchat.

Monica McNeil

2018-02-19 08:39:00 Monday ET

Snap cannot keep up with the Kardashians because its stock loses $1 billion market value after Kylie Jenner tweets about her decision to leave Snapchat.

Snap cannot keep up with the Kardashians because its stock loses market value 7% or $1 billion after Kylie Jenner tweets about her decision to leave Snapcha

+See More

Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability and maximum employment.

Apple Boston

2023-08-07 12:29:00 Monday ET

Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability and maximum employment.

Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability

+See More