Currencies in the context of "Medium of exchange"

Commerce is the organized system of activities, functions, procedures and institutions that directly or indirectly contribute to the smooth, unhindered exchange of goods, services, and other things of value—predominantly through transactional processes—at the right time, place, quantity, quality and price through various channels among the original producers and the final consumers within local, regional, national or international economies. The diversity in the distribution of natural resources, differences of human needs and wants, and division of labour along with comparative advantage are the principal factors that give rise to commercial exchanges.

Commerce consists of trade and aids to trade (i.e. auxiliary commercial services) taking place along the entire supply chain. Trade is the exchange of goods (including raw materials, intermediate and finished goods) and services between buyers and sellers in return for an agreed-upon price at traditional (or online) marketplaces. It is categorized into domestic trade, including retail and wholesale as well as local, regional, inter-regional and international/foreign trade (encompassing import, export and entrepôt/re-export trades). The exchange of currencies (in foreign exchange markets), commodities (in commodity markets/exchanges) and securities and derivatives (in stock exchanges and financial markets) in specialized exchange markets, typically operating under the domain of finance and investment, also falls under the umbrella of trade. On the other hand, auxiliary commercial activities (aids to trade) which can facilitate trade include commercial intermediaries, banking, credit financing and related services, transportation, packaging, warehousing, communication, advertising and insurance. Their purpose is to remove hindrances related to direct personal contact, payments, savings, funding, separation of place and time, product protection and preservation, knowledge and risk.

Monetary policy is the policy adopted by the monetary authority of a nation to affect monetary and other financial conditions to accomplish broader objectives like high employment and price stability (normally interpreted as a low and stable rate of inflation). Further purposes of a monetary policy may be to contribute to economic stability or to maintain predictable exchange rates with other currencies. Today most central banks in developed countries conduct their monetary policy within an inflation targeting framework, whereas the monetary policies of most developing countries' central banks target some kind of a fixed exchange rate system. A third monetary policy strategy, targeting the money supply, was widely followed during the 1980s, but has diminished in popularity since then, though it is still the official strategy in a number of emerging economies.

The tools of monetary policy vary from central bank to central bank, depending on the country's stage of development, institutional structure, tradition and political system. Interest-rate targeting is generally the primary tool, being obtained either directly via administratively changing the central bank's own interest rates or indirectly via open market operations. Interest rates affect general economic activity and consequently employment and inflation via a number of different channels, known collectively as the monetary transmission mechanism, and are also an important determinant of the exchange rate. Other policy tools include communication strategies like forward guidance and in some countries the setting of reserve requirements. Monetary policy is often referred to as being either expansionary (lowering rates, stimulating economic activity and consequently employment and inflation) or contractionary (dampening economic activity, hence decreasing employment and inflation).

A currency basket is a portfolio of selected currencies with different weightings. A currency basket is commonly used by investors to minimize the risk of currency fluctuations and also governments when setting the market value of a country's currency.

An example of a currency basket is the European Currency Unit that was used by the European Community member states as the unit of account before being replaced by the euro. Another example is the special drawing rights of the International Monetary Fund.

An exchange-traded fund (ETF) is a type of investment fund that is also an exchange-traded product; i.e., it is bought and sold on stock exchanges. ETFs own financial assets such as stocks, bonds, currencies, debts, futures contracts, and/or commodities such as gold bars. Many ETFs provide some level of diversification compared to owning an individual stock.

£sd (occasionally written Lsd) is the popular name for the pre-decimal currencies once common throughout Europe. The abbreviation originates from the Latin currency denominations librae, solidi, and denarii. Under this system, there were 12 denarii in a solidus and 20 solidi (or 240 denarii) in a libra. In the countries of the (former) British Empire, these were called pounds, shillings, and pence (pence being the plural of penny), with 12 pence in a shilling and 20 shillings in a pound.

Although the names originated from popular coins in the classical Roman Empire, their definitions and the ratios between them were introduced and imposed across Western Europe by Emperor Charlemagne. King Offa of Mercia adopted the Frankish silver standard of librae, solidi, and denarii into Britain in the late 8th century.

Accounting software is a computer program that maintains account books on computers, including recording transactions and account balances. It may depend on virtual thinking. Depending on the purpose, the software can manage budgets, perform accounting tasks for multiple currencies, perform payroll and customer relationship management, and prepare financial reporting. Work to have accounting functions be implemented on computers goes back to the earliest days of electronic data processing. Over time, accounting software has revolutionized from supporting basic accounting operations to performing real-time accounting and supporting financial processing and reporting. Cloud accounting software was first introduced in 2011, and it allowed the performance of all accounting functions through the internet.

Reuters 3000 Xtra was an electronic trading platform which was released by Reuters in 1999 and supported until the end of 2013. It was typically used by professional traders and financial analysts in trading rooms. It was superseded by the Eikon platform, first released in 2010.

3000 Xtra provided real-time market data such as price data on exchange traded stocks, warrants, options, futures, indices, bonds, commodities and currencies, as well as streaming news and comprehensive economic indicators and financial data. Originally designed as an information system, later versions also introduced trading functions, allowing orders to be placed on a number of electronic exchanges and with other dealing desks.