Meanwhile liquidity of payment is also demanded by both parties. In the days when paper documents were used popularly it took a long time to transfer those concrete documents from each side. Nowadays when electronic technology is accepted by more and more trade organizations this problem seems easy to solve. Now payment of money no longer involves physical delivery of tangible property but communication of data and movement of messages, reducing payment value to symbolic form. For example, after the contract is signed the importer requires a bank, called the Issuing Bank, to print a Letter of Credit which declares the bank will pay the price of goods directly when the condition attached in the contract comes into being. By the banking system the Issuing Bank will notify this Letter of Credit to the exporter. The bank that helps the Issuing Bank is called the Advising Bank and it often locates in the exporter’s country. Actually there is often a bank located in the exporter’s country to confirm this Letter of Credit, called the Confirming Bank, which promises to pay the price immediately if the documents are in order. After the exporter ships the tangible goods by suitable way he may receive some documents required in the contract. Then the exporter sends the documents with a draft to the advising bank or confirming bank, if any, and the bank checks them carefully to find whether they accord to the contract. If the bank is satisfied it may pay the price unconditionally. After that the bank sends the documents and the draft paid to the issuing bank. Of course if the Issuing Bank doesn’t need the documents then it sends them to the exporter and receives the payment that it has paid to the confirming bank.
　　　 The usual method of the transfer of documents and money is so complex that, unsurprisingly, much time is consumed. On the other hand development of electronic means makes the transfer of documents and money smooth and quick. Although, the necessary technical support is lacking now the future of paperless payment is hopeful. Moreover this method of payment has been widely accepted by developing countries. Consequently, the more international trades increase, the more paperless documents will be required.

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