Lesson details
- Estimated study time
- 120 min
Learning objectives (4)
Which file belongs in a December 31 aging: the frozen year-end extract or the January 8 refresh with “more complete cash”? Freeze and reconcile the December 31 population first. Preserve the refresh as later-cash evidence, tag what it reveals about conditions at year end, and route it through the policy developed in Lesson 03; it cannot silently replace the reporting-date population or due- date calculation.
Assign each exposure once
Define invoice date, due date, aging date, bucket lower and upper bounds, time zone, partial-payment ordering, unapplied cash, credit balances, disputes, and modified terms. Preserve source invoice and customer identifiers. Sum bucket exposures to the gross ledger and investigate every reconciling item.
The same customer can have current and delinquent invoices. A customer-level average can hide the older exposure; an invoice-level aging can hide a common default source if customer relationships are not retained. Use the grain that fits the risk and reconcile both views when needed.
Pool only shared risk
Product, geography, industry, collateral, term, internal grade, delinquency, vintage, and loss pattern can support segmentation when they actually affect expected cash shortfalls. Reassess shared characteristics each reporting date. An individually stressed asset can leave a pool; it cannot remain there and receive a second individual allowance.
Hand the controlled population forward
Build the four-bucket Linden Peak aging, then provide a population bridge from ledger to model. Annotate one invoice whose due-date correction moves buckets and one customer whose risk evidence requires individual evaluation. Do not apply a loss rate yet. Propose two plausible pool designs, challenge each against shared-risk evidence and sample size, and document why one better fits the population. End by recording the January 8 file as a separate evidence source, with its information date and the specific year-end assertion it may or may not inform; Lesson 03 will decide how later cash enters the estimate.