221. Describe what else can be used instead of money as a store of value

257. Explain what tariff means.
tariff, also called customs duty, tax levied upon goods as they cross national boundaries, usually by the government of the importing country. The words tariff, duty, and customs can be used interchangeably.
Governments impose tariffs to raise revenue, protect domestic industries, or exert political leverage over another country.
Tariffs often result in unwanted side effects, such as higher consumer prices.
Tariffs have a long and contentious history and the debate over whether they represent a good or bad policy rages on to this day.
258. Explain what quota means.
A quota is a government-imposed trade restriction that limits the number or monetary value of goods that a country can import or export during a particular period. Countries use quotas in international trade to help regulate the volume of trade between them and other countries.
limited quantity of a particular product which under official controls can be produced, exported, or imported.quota, in international trade, government-imposed limit on the quantity, or in exceptional cases the value, of the goods or services that may be exported or imported over a specified period of time. ... Applied selectively to various countries, quotas can also be a coercive economic weapon.

259. Explainwhat absolute advantage means.
absolute advantage, economic concept that is used to refer to a party's superior production capability. Specifically, it refers to the ability to produce a certain good or service at lower cost (i.e., more efficiently) than another party.
Absolute advantage is the ability of an individual, company, region, or country to produce a greater quantity of a good or service with the same quantity of inputs per unit of time, or to produce the same quantity of a good or service per unit of time using a lesser quantity of inputs, than its competitors.
260. Explainwhat does comparative advantage means.
Comparative advantage refers to the ability to produce goods and services at a lower opportunity cost, not necessarily at a greater volume or quality. Comparative advantage is a key insight that trade will still occur even if one country has an absolute advantage in all products.