The balance of trade also referred as trade balance, which sometimes is symbolized as NX, is the difference of the monetary value of imports and exports in one economy in a given period of time. The balance of trade is considered the biggest part of a country’s balance of payments.
Imports, domestic spending, foreign aid, and investment abroad are called debit items while credit items includes exports, foreign investments in domestic economy and foreign spending in domestic economy.
A trade surplus is a positive balance of trade which is consists of more exporting than importing. A trade deficit is the negative balance of trade or sometimes called a trade gap. The trade balance can sometimes be divided as services balance and goods balance just like in the United Kingdom which they use the terms invisible and visible balance.
The balance of trade is a part of current account which includes transactions that includes income derived from international investment and international aid. Thus, if the current account comes as a surplus then the nation’s international net asset increases also while deficit will decrease the international net asset.
A good trade surplus is achieved when a country exports products more than buying imported goods. A trade deficit is eventually experience as a result of the opposite of a trade surplus. The trade balance is alike to the difference of a country's output and the domestic demand. These factors may affect the trade balance: prices of goods manufactured, taxes and tariffs, trade agreements, business cycle (home or abroad), and exchange rates.
The trade balance is different in many business cycles. For instance, export growth like oil and industrial goods which improves when there is economic expansion.
In developed countries like; Japan, China and Germany usually run at trade surpluses in which they experience a higher savings rate. Around the world there are different natural resources which a country may have for instance, countries from the coastal regions are major producers of fish, Canada can be a major producer of lumber because of its huge forests while in the Middle East, has the most oil reserves.http://www.forexfloor.com/trade-balance.html
International trade is important so in order to sustain the balance of trade. A country should be totally self sufficient without international trade. Through international trades, each country will have the opportunity to produce specialize goods efficiently. In relation, when a nation specializes in producing these goods, the total production increases instead of trying to be self sufficient. Nations will benefit from international trades and also meets their needs. Generally, nations will trade to other nations when they gain from the trade. But the gains are not usually equal in terms of benefits and profit.