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 criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

Charlene Vos

2018-08-29 10:37:00 Wednesday ET

President Trump criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

In an exclusive interview with Bloomberg, President Trump criticizes the World Trade Organization (WTO), proposes indexing capital gains taxes to inflation

+See More

AYA finbuzz podcast offers fresh insights into the latest stock market topics, economic trends, and personal finance inspirations as of December 2019.

Amy Hamilton

2019-12-30 11:28:00 Monday ET

AYA finbuzz podcast offers fresh insights into the latest stock market topics, economic trends, and personal finance inspirations as of December 2019.

AYA Analytica finbuzz podcast channel on YouTube December 2019 In this podcast, we discuss several topical issues as of December 2019: (1) The Trump adm

+See More

The Trump team now aims to make progress on health care, infrastructure, social welfare, and immigration.

Monica McNeil

2018-01-06 07:32:00 Saturday ET

The Trump team now aims to make progress on health care, infrastructure, social welfare, and immigration.

Subsequent to the Trump tax cuts for Christmas in December 2017, the one-year-old Trump presidency now aims to make progress on health care, infrastructure,

+See More

Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members.

Laura Hermes

2020-06-17 09:23:00 Wednesday ET

Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members.

Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members. William Ferguson (2013) &

+See More

San Francisco Fed CEO Mary Daly suggests that trade escalation is not the only risk in the global economy.

Rose Prince

2019-06-19 09:27:00 Wednesday ET

San Francisco Fed CEO Mary Daly suggests that trade escalation is not the only risk in the global economy.

San Francisco Fed CEO Mary Daly suggests that trade escalation is not the only risk in the global economy. Due to the current Sino-U.S. trade tension, the g

+See More

Former LSE Director Howard Davies shares his ingenious insights into the new Basel 4 accord.

Chanel Holden

2018-01-01 06:30:00 Monday ET

Former LSE Director Howard Davies shares his ingenious insights into the new Basel 4 accord.

As former chairman of the British Financial Services Authority and former director of the London School of Economics, Howard Davies shares his ingenious ins

+See More