In economics, the balance of payments, (or BOP) measures the payments that flow between any individual country and all countries. It is used to summarize all international economic transactions for that country during a specific time period, usually a year. The BOP is determined by the country's exports and imports of goods, services, and financial capital, as well as financial transfers. It reflects all payments and liabilities to foreigners (debits) and all payments and obligations received from foreigners (credits). Balance of payments is one of the major indicators of a country's status in international trade, with net capitoutflow.[citation al needed]
The balance, like other accounting statements, is prepared in a single currency, usually the domestic. Foreign assets and flows are valued at the exchange rate of the time of transaction.
this words was written after reading informations about WTO ( International Trade Organization ) .