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

Partisanship matters more than the socioeconomic influence of the rich and elite interest groups.

John Fourier

2019-08-26 11:30:00 Monday ET

Partisanship matters more than the socioeconomic influence of the rich and elite interest groups.

Partisanship matters more than the socioeconomic influence of the rich and elite interest groups. This new trend emerges from the recent empirical analysis

+See More

International trade, immigration, and elite-mass conflict

Jacob Miramar

2023-12-09 08:28:00 Saturday ET

International trade, immigration, and elite-mass conflict

International trade, immigration, and elite-mass conflict The elite model portrays public policy as a reflection of the interests and values of elites. I

+See More

Modern themes and insights in behavioral finance (Part 1)

Laura Hermes

2022-02-05 09:26:00 Saturday ET

Modern themes and insights in behavioral finance (Part 1)

Modern themes and insights in behavioral finance   Shiller, R.J. (2003). From efficient markets theory to behavioral finance. Journal of Economi

+See More

Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Peter Prince

2019-01-07 18:42:00 Monday ET

Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Neoliberal public choice continues to spin national taxation and several other forms of government intervention. The key post-crisis consensus focuses on go

+See More

Disruptive innovators often apply their 5 major skills in new niche discovery and market share dominance.

James Campbell

2020-05-07 08:26:00 Thursday ET

Disruptive innovators often apply their 5 major skills in new niche discovery and market share dominance.

Disruptive innovators often apply their 5 major pragmatic skills in new blue-ocean niche discovery and market share dominance. Jeff Dyer, Hal Gregersen,

+See More

House Judiciary Committee summons senior executive reps of the tech titans to assess online platforms and their market power.

Peter Prince

2019-08-18 11:33:00 Sunday ET

House Judiciary Committee summons senior executive reps of the tech titans to assess online platforms and their market power.

House Judiciary Committee summons senior executive reps of the tech titans to assess online platforms and their market power. These companies are Facebook,

+See More