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.
2019-10-19 16:35:00 Saturday ET
European economic integration seems to have gone backwards primarily due to the recent Brexit movement. Brexit, key European sovereign debt, and French and
2019-08-28 14:46:00 Wednesday ET
Santa-Barbara political economy professor Benjamin Cohen proposes new fiscal stimulus to complement the current low-interest-rate monetary policy. Cohen fin
2023-06-19 10:31:00 Monday ET
A brief biography of Andy Yeh Andy Yeh is responsible for ensuring maximum sustainable member growth within the Andy Yeh Alpha (AYA) fintech network plat
2018-08-25 12:33:00 Saturday ET
President Trump warns Google, Facebook, and Twitter that these tech titans now tread on troublesome territory. Specifically, Trump accuses Google of rigging
2019-11-07 14:36:00 Thursday ET
America expects to impose punitive tariffs on $7.5 billion European exports due to the recent WTO rule violation of illegal plane subsidies. World Trade Org
2019-09-01 10:31:00 Sunday ET
Most artificial intelligence applications cannot figure out the intricate nuances of natural language and facial recognition. These intricate nuances repres