Starting from Least Risk for an Exporter to Most Risk
1. Prepayment - explained above
2. Letter of Credit - lyk a document that means the importers bank MUST send the money to the exporter and all the exporter has to do is provide proof of shipment.
3.Clean payment - this is wierd as, something like the importer will send the moeny but the exporter cannot actually recieve the money until they send the goods (LIKE WTF, CLARITY ON THIS)
4. Bill of Exchange - i dont understand this too well , but a represntative from the exporter's bank will go to the importer's country and will not let the exporter send the goods to the importer unless the importer meets all conditions in the partiuclar bill (documentation)
5. Open Credit - explained above