Non-tariff barriers to trade in the context of "Trade bloc"

The European Union Customs Union (EUCU), formally known as the Community Customs Union, is a customs union which consists of all the member states of the European Union (EU), Monaco, and the British Overseas Territory of Akrotiri and Dhekelia. Some detached territories of EU states do not participate in the customs union, usually as a result of their geographic separation. In addition to the EUCU, the EU is in customs unions with Andorra, San Marino and Turkey (with the exceptions of certain goods), through separate bilateral agreements.

There are no tariffs or non-tariff barriers to trade between the members of the customs union and—unlike a free trade area—members of the customs union impose a common external tariff on all goods entering the union.

A single market, sometimes called common market or internal market, is a type of trade bloc in which most trade barriers have been removed (for goods) with some common policies on product regulation, and freedom of movement of the factors of production (capital and labour) and of enterprise and services. The goal is that the movement of capital, labour, goods, and services between the members is as easy as within them. The physical (borders), technical (standards) and fiscal (taxes) barriers among the member states are removed to the maximum extent possible. These barriers obstruct the freedom of movement of the four factors of production (goods, capital, services, workers).

A common market is usually referred to as the first stage towards the creation of a single market. It usually is built upon a free trade area with no tariffs for goods and relatively free movement of capital, workers and services, but not so advanced in reduction of other trade barriers.

A tariff or import tax is a duty imposed by a national government, customs territory, or supranational union on imports of goods and is paid by the importer. Exceptionally, an export tax may be levied on exports of goods or raw materials and is paid by the exporter. Besides being a source of revenue, import duties can also be a form of regulation of foreign trade and policy that burden foreign products to encourage or safeguard domestic industry. Protective tariffs are among the most widely used instruments of protectionism, along with import quotas and export quotas and other non-tariff barriers to trade.

Tariffs can be fixed (a constant sum per unit of imported goods or a percentage of the price) or variable (the amount varies according to the price). Tariffs on imports are designed to raise the price of imported goods to discourage consumption. The intention is for citizens to buy local products instead, which, according to supporters, would stimulate their country's economy. Tariffs therefore provide an incentive to develop production and replace imports with domestic products. Tariffs are meant to reduce pressure from foreign competition and, according to supporters, would help reduce the trade deficit. They have historically been justified as a means to protect infant industries and to allow import substitution industrialisation (industrializing a nation by replacing imported goods with domestic production). Tariffs may also be used to rectify artificially low prices for certain imported goods, due to dumping, export subsidies or currency manipulation. The effect is to raise the price of the goods in the destination country.

A common external tariff (CET) must be introduced when a group of countries forms a customs union. The same customs duties, import quotas, preferences or other non-tariff barriers to trade apply to all goods entering the area, regardless of which country within the area they are entering. It is designed to end re-exportation; but it may also inhibit imports from countries outside the customs union and thereby diminish consumer choice and support protectionism of industries based within the customs union. The common external tariff is a mild form of economic union but may lead to further types of economic integration. In addition to having the same customs duties, the countries may have other common trade policies, such as having the same quotas, preferences or other non-tariff trade regulations apply to all goods entering the area, regardless of which country, within the area, they are entering.

The main goal of the Custom Unions is to limit external influence, liberalize intra-regional trade, promote economic development and diversification in industrialization in the Community.

A trade agreement (also known as trade pact) is a wide-ranging taxes, tariff and trade treaty that often includes investment guarantees. It exists when two or more countries agree on terms that help them trade with each other. The most common trade agreements are of the preferential and free trade types, which are concluded in order to reduce (or eliminate) tariffs, quotas and other trade restrictions on items traded between the signatories.

The logic of formal trade agreements is that they outline what is agreed upon and specify the punishments for deviation from the rules set in the agreement. Trade agreements therefore make misunderstandings less likely, and create confidence on both sides that cheating will be punished; this increases the likelihood of long-term cooperation. An international organization, such as the IMF, can further incentivize cooperation by monitoring compliance with agreements and reporting third countries of the violations. Monitoring by international agencies may be needed to detect non-tariff barriers, which are disguised attempts at creating trade barriers.

Trade barriers are government-induced restrictions on international trade. Most trade barriers work on the same principle: the imposition of some sort of cost (money, time, bureaucracy, quota) on trade that alters the price or availability of the traded products. Barriers take the form of tariffs (which impose a financial burden on imports) and non-tariff barriers to trade (which uses other overt and covert means to restrict imports and occasionally exports). Trade barriers have been criticized for their negative impacts on consumers and their unequal applications to developing countries.

The use of trade barriers has shifted throughout history. Protectionist policies were commonplace in the mercantilist era, but a combination of industrialization and liberalization led to a shift towards free trade in the mid-to-late 19th century. The interwar period led to a regression back to protectionism, but post-WWII there was a near-universal commitment to multilateralism and the creation of international organizations that led to lower tariffs and decreased protectionism. While organizations like the World Trade Organization still provide an avenue for trade negotiations, in recent times there has been a shift away from trade openness and towards plurilateral agreements and regionalism.