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

Amy Chua and Jed Rubenfeld suggest that relatively successful ethnic groups exhibit common cultural traits in America.

Laura Hermes

2023-05-21 12:26:00 Sunday ET

Amy Chua and Jed Rubenfeld suggest that relatively successful ethnic groups exhibit common cultural traits in America.

Amy Chua and Jed Rubenfeld suggest that relatively successful ethnic groups exhibit common cultural traits in America. Amy Chua and Jed Rubenfeld (2015)

+See More

Amazon and Google face more intense antitrust scrutiny.

Apple Boston

2019-06-21 13:33:00 Friday ET

Amazon and Google face more intense antitrust scrutiny.

Amazon and Google face more intense antitrust scrutiny. In recent times, Justice Department and Federal Trade Commission have reached an internal agreement

+See More

AYA free finbuzz ebook *Trump economic reform* as of January 2019

Andy Yeh Alpha

2019-01-31 08:40:00 Thursday ET

AYA free finbuzz ebook *Trump economic reform* as of January 2019

We offer a free ebook on the latest stock market news, economic trends, and investment memes as of January 2019:  https://www.dropbox.com/s/4d8z

+See More

Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism.

Fiona Sydney

2019-06-29 17:30:00 Saturday ET

Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism.

Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism. Neoliberalism includes lower taxation, deregulation, socia

+See More

Global economic uncertainty now lurks in a thick layer of mystery.

Jonah Whanau

2019-03-01 13:36:00 Friday ET

Global economic uncertainty now lurks in a thick layer of mystery.

Global economic uncertainty now lurks in a thick layer of mystery. This uncertainty arises from Sino-U.S. trade tension, Brexit fallout, monetary policy nor

+See More

Steven Shavell presents his economic analysis of law in terms of the economic outcomes of both legal doctrines and institutions.

Jacob Miramar

2023-08-21 12:25:00 Monday ET

Steven Shavell presents his economic analysis of law in terms of the economic outcomes of both legal doctrines and institutions.

Steven Shavell presents his economic analysis of law in terms of the economic outcomes of both legal doctrines and institutions. Steven Shavell (2004)

+See More