International finance is built upon balance payments. US trade data shows trade flows. These are usually caused by surpluses or other economic activities. Understanding the nature and extent of trade between countries can help you understand the impact trade flows have on the balance of payments. This can be done with the help of import and export information from the countries. Understanding the structure and flow of trade is crucial to understand the impact of trade flows on balances. You can do this by looking at the import-export data for countries like the USA. International trade is the commerce of goods or services. Market prices are the base of international trade. Market prices can determine the value of imported items and services. Importers purchase products from one location and then export them. Exporters export everything, from products to services. It is necessary to add up the costs of purchase and sale in order to determine the trade imbalance. It...