Trade Finance
Also known as: Letter of credit, Documentary credit, L/C
A bank stands between two strangers on opposite sides of the world so that neither has to trust the other. The oldest financial product still in daily use.
- Asset class
- Money markets (short-term credit)
- Instrument type
- Bank undertaking against documents
- Traded
- Bilateral; secondary market in trade receivables
- Typical users
- Importers, exporters, commodity traders, trade-finance funds
1 · SnapshotThe one idea to remember
2 · BeginnerWhat is it, really?
An exporter in one country ships goods to an importer in another. Each has the same problem: the exporter does not want to ship before being paid, and the importer does not want to pay before receiving goods. Neither can enforce a contract in the other's courts at reasonable cost.
A letter of credit resolves it by inserting a bank. The importer's bank promises to pay the exporter — not when the goods arrive, but when the documents arrive and match what the credit demands:
- Bill of lading (proof the goods were shipped)
- Commercial invoice, packing list, insurance certificate, inspection certificate
The bank never inspects the goods. It reads paperwork against a checklist and pays if it matches. That sounds like a weakness and is in fact the design: banks are good at checking documents and terrible at valuing cargo.
3 · IntermediateHow it works in practice
The family of instruments
- Letter of credit — the bank pays on compliant documents. The workhorse.
- Confirmed letter of credit — a second bank, usually in the exporter's country, adds its own promise. This is what converts emerging-market bank risk into local bank risk, and it is the point of confirmation.
- Standby letter of credit — pays only if the buyer fails to pay by other means. Economically a guarantee wearing an L/C's legal clothes.
- Documentary collection — the bank handles documents but promises nothing. Cheaper, and far weaker.
- Supply chain finance — the buyer's bank pays suppliers early against approved invoices, at the buyer's credit rating rather than the supplier's.
Why the credit risk is unusually low
| Feature | Effect |
|---|---|
| Short tenor | Typically 30–180 days — little time for a borrower to deteriorate |
| Self-liquidating | The transaction generates the cash that repays it |
| Goods as collateral | Documents give control over the cargo |
| Historic loss rates | Very low across cycles, including 2008 |
4 · AdvancedPricing & valuation
Pricing: a short-dated credit spread with a fee attached
- The credit component follows the issuing bank's own funding spread — the same expected-loss arithmetic as any short-dated exposure, with an unusually high recovery assumption because of the goods.
- The confirmation charge is a country-risk price and moves with sovereign CDS spreads. It is one of the few places where country risk is quoted directly to a commercial counterparty.
- Processing costs are real and, historically, large relative to the credit charge — the industry runs on paper, couriers and manual document checking to a degree that surprises outsiders.
The doctrine of strict compliance, and its consequence
Banks pay against documents that comply exactly. A misspelled name or a date one day outside the window is a valid reason to refuse, even when everyone knows the goods arrived. Industry surveys have repeatedly found that a large share of first presentations are rejected for discrepancies. That is not dysfunction — it is what makes the bank's promise financeable, because the bank's obligation is defined by a checkable document set rather than by a commercial dispute it cannot adjudicate.
Trade finance as an asset class
- The appeal: short duration, low historical losses, floating-rate returns and genuinely low correlation with securities markets — a real diversifier in the sense the diversification page means.
- The catch: it is operationally intensive, illiquid, and exposed to fraud rather than to credit. The commodity-trade-finance failures of 2020 involved the same cargo pledged repeatedly to different lenders — a documentation failure, not a market one.
- The gap: development banks estimate an unmet demand for trade finance running into the trillions, concentrated in smaller firms in emerging markets, because compliance costs exceed the fee on a small transaction. That gap is the sector's real story.
The formulas above are standard textbook formulations, simplified for teaching. They explain the mechanism — they are not a valuation tool, and they will not reproduce a dealer’s price.