Economics

6. a limited or fixed number or amount of people or things, in particular.
10. is a method of production where a business, area or economy focuses on the production of a limited scope of products or services to gain greater degrees of productive efficiency within an overall system.
12. is a trade agreement between Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, the United States (until 23 January 2017) and Vietnam.
13. the assignment of different parts of a manufacturing process or task to different people in order to improve efficiency.

1. the theory or practice of shielding a country's domestic industries from foreign competition by taxing imports.
2. the dependence of two or more people or things on each other
3. are government-induced restrictions on international trade.[1] The barriers can take many forms
4. The North American Free Trade Agreement (NAFTA; Spanish: Tratado de Libre Comercio de América del Norte, TLCAN; French: Accord de libre-échange nord-américain, ALÉNA) is an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America.
5. is a kind of predatory pricing, especially in the context of international trade. It occurs when manufacturers export a product to another country at a price either below the price charged in its home market or below its cost of production.
7. authoritative permission or approval, as for an action.
8. a tax or duty to be paid on a particular class of imports or exports.
9. is a form of financial aid or support extended to an economic sector (or institution, business, or individual) generally with the aim of promoting economic and social policy.
11. an official ban on trade or other commercial activity with a particular country.