A trade ban can be referred to as an embargo, boycott, or sanctions. An embargo is a complete prohibition of trade with a particular country or group, usually imposed as a political or economic weapon. A boycott is a coordinated refusal by a group of people or countries to buy goods or services from a country or company as a protest or political statement. Sanctions involve restrictions on trade, technology transfer, or financial transactions, usually imposed by one country or group of countries against another. These terms are often used interchangeably to refer to the same concept: a restriction on trade, either for political or economic reasons.