Home > Library > 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.
2020-03-19 13:39:00 Thursday ET

The business legacy and sensitivity of Steve Jobs can transform smart mobile devices with Internet connectivity, music and video content curation, and digit
2019-06-15 10:28:00 Saturday ET

The Sino-American trade war may slash global GDP by $600 billion. If the Trump administration imposes tariffs on all the Chinese imports and China retaliate
2025-09-14 14:23:00 Sunday 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 fund
2020-08-19 10:32:00 Wednesday ET

Corporate strategies, portfolio choices, and management memes add value and drive business process improvements over time. Andrew Campbell, Jo Whitehead,
2018-10-05 10:38:00 Friday ET

A 7-year $1.3 billion hedge fund manager Chelsea Brennan shares her investment advice. Her advice encompasses several steps toward better financial literacy
2019-05-01 09:27:00 Wednesday ET

Apple settles its 2-year intellectual property lawsuit with Qualcomm by agreeing to a multi-year patent license with royalty payments to the microchip maker