In international trade it is almost impossible to mach payment with physical delivery (实际交货) of the goods, which constitutes conflicting problems for trade, since the exporter prefers to get paid before releasing the goods and the importer prefers to gain control over the goods before paying the money
The letter of credit is an effective means to solve these problems
Its objective is to facilitate international payment by means of the credit-worthiness of the bank
This method of payment offers security to both the seller and the buyer
The former has the security to get paid provided (假如) he presents impeccable(没有缺陷的)documents while the latter has the security to get the goods required through the documents he stipulates in the credit
This bilateral security is the unique and character