In most countries, such trade represents a significant share of gross domestic product (GDP). While international trade has existed throughout history (for example Uttarapatha, Silk Road, Amber Road, scramble for Africa, Atlantic slave trade, salt roads), its economic, social, and political importance has been on the rise in recent centuries.
Carrying out trade at an international level is a complex process when compared to domestic trade. When trade takes place between two or more nations factors like currency, government policies, economy, judicial system, laws, and markets influence trade.
To smoothen and justify the process of trade between countries of different economic standing, some international economic organisations were formed, such as the World Trade Organization. These organisations work towards the facilitation and growth of international trade. Statistical services of intergovernmental and supranational organisations and national statistical agencies publish official statistics on international trade.