Swiss franc in the context of "Liechtenstein"

A free trade area is the region encompassing a trade bloc whose member countries have signed a free trade agreement (FTA). Such agreements involve cooperation between at least two countries to reduce trade barriers, import quotas and tariffs, and to increase trade of goods and services with each other. If natural persons are also free to move between the countries, in addition to a free trade agreement, it would also be considered an open border. It can be considered the second stage of economic integration.

Customs unions are a special type of free trade area. All such areas have internal arrangements which parties conclude in order to liberalize and facilitate trade among themselves. The crucial difference between customs unions and free trade areas is their approach to third parties. While a customs union requires all parties to establish and maintain identical external tariffs with regard to trade with non-parties, parties to a free trade area are not subject to this requirement. Instead, they may establish and maintain whatever tariff regime applying to imports from non-parties as deemed necessary. In a free trade area without harmonized external tariffs, to eliminate the risk of trade deflection, parties will adopt a system of preferential rules of origin.

A currency union (also known as monetary union) is an intergovernmental agreement that involves two or more states sharing the same currency. These states may not necessarily have any further integration (such as an economic and monetary union, which would have, in addition, a customs union and a single market).

The foreign exchange market (forex, FX, or currency market) is a global decentralized or over-the-counter (OTC) market for the trading of currencies. This market determines foreign exchange rates for every currency. By trading volume, it is by far the largest market in the world, followed by the credit market.

The main participants are the larger international banks. Financial centres function as anchors of trading between a range of multiple types of buyers and sellers around the clock, with the exception of weekends. As currencies are always traded in pairs, the market does not set a currency's absolute value, but rather determines its relative value by setting the market price of one currency if paid for with another. Example: 1 USD is worth 1.1 Euros or 1.2 Swiss Francs etc. The market works through financial institutions and operates on several levels. Behind the scenes, banks turn to a smaller number of financial firms known as "dealers", who are involved in large quantities of trading. Most foreign exchange dealers are banks, so this behind-the-scenes market is sometimes called the "interbank market". Trades between dealers can be very large, involving hundreds of millions of dollars. Because of the sovereignty issue when involving two currencies, Forex has little supervisory entity regulating its actions. In a typical foreign exchange transaction, a party purchases some quantity of one currency by paying with some quantity of another currency.

Foreign exchange reserves, also called Forex reserves, in a strict sense, are foreign-currency deposits held by nationals and monetary authorities. However, in popular usage and in the list below, it also includes gold reserves, special drawing rights (SDRs) and IMF reserve position because this total figure, which is usually more accurately termed as official reserves or international reserves or official international reserves, is more readily available and also arguably more meaningful. These foreign-currency deposits are the financial assets of the central banks and monetary authorities that are held in different reserve currencies (e.g., the U.S. dollar, the euro, the pound sterling, the Japanese yen, the Indian rupee, the Swiss franc, and the Chinese renminbi) and which are used to back its liabilities (e.g., the local currency issued and the various bank reserves deposited with the Central bank by the government or financial institutions). Before the end of the gold standard, gold was the preferred reserve currency.

Foreign-exchange reserves is generally used to intervene in the foreign exchange market to stabilize or influence the value of a country's currency. Central banks can buy or sell foreign currency to influence exchange rates directly. For example, if a currency is depreciating, a central bank can sell its reserves in foreign currency to buy its own currency, creating demand and helping to stabilize its value. High levels of reserves instill confidence among investors and traders. If market participants believe that a country has sufficient reserves to support its currency, they are less likely to engage in speculative attacks that could lead to a sharp depreciation. In times of economic uncertainty or financial market volatility, central banks can use reserves to smooth out fluctuations in the exchange rate, reducing the impact of sudden capital outflows or shocks to the economy. Adequate reserves ensure that a country can meet its international payment obligations, which helps maintain a stable exchange rate by preventing panic in the foreign exchange market. Having substantial reserves allows central banks to implement monetary policies more effectively. They can afford to maintain interest rates or engage in other measures without the immediate fear of depleting reserves, which can influence market expectations positively.

Regional Integration is a process in which neighboring countries enter into an agreement in order to upgrade cooperation through common institutions and rules. The objectives of the agreement could range from economic to political to environmental, although it has typically taken the form of a political economy initiative where commercial interests are the focus for achieving broader socio-political and security objectives, as defined by national governments. Regional integration has been organized either via supranational institutional structures or through intergovernmental decision-making, or a combination of both.

Past efforts at regional integration have often focused on removing barriers to free trade in the region, increasing the free movement of people, labour, goods, and capital across national borders, reducing the possibility of regional armed conflict (for example, through Confidence and Security-Building Measures), and adopting cohesive regional stances on policy issues, such as the environment, climate change and migration.

Currency substitution is the use of a foreign currency in parallel to or instead of a domestic currency.

Currency substitution can be full or partial. Full currency substitution can occur after a major economic crisis, such as in Ecuador. Some small economies, for whom it is impractical to maintain an independent currency, use the currencies of their larger neighbours; for example, Liechtenstein uses the Swiss franc.