Industry WIKI
Digital assets and currencies
Understand assets, networks and trading mechanics with sources you can check.
AirPlus International
AirPlus International GmbH is a global corporate payment provider offering payment and data services for corporate travel management, procurement, and travel trade. Originally a subsidiary of Lufthansa Group, the company was acquired by SEB Kort in July 2024. The company provides business-to-business payment services around business travel payment, accounting, and analysis functions, in
Payments & settlementAmerican Express
American Express Company (Amex) is an American bank holding company and multinational financial services corporation that specializes in payment cards. It is headquartered at 200 Vesey Street, also known as American Express Tower, in the Battery Park City neighborhood of Lower Manhattan; in 2026, the company announced that it would develop and be the sole occupant of the new 2 World Trad
Payments & settlementATM
An automated teller machine (ATM) is an electronic telecommunications device that enables customers of financial institutions to perform financial transactions, such as cash withdrawals, deposits, funds transfers, balance or account information inquiries, at any time and without the need for direct interaction with bank staff.
BankingBank transaction tax
A bank transaction tax is a tax levied on debit (and/or credit) entries on bank accounts. In 1989, at the Buenos Aires meetings of the International Institute of Public Finance, University of Wisconsin–Madison Professor of Economics Edgar L. Feige proposed extending the tax reform ideas of John Maynard Keynes, James Tobin and Lawrence Summers, to their logical conclusion, namely to tax a
Fiat currenciesBureau de change
A bureau de change (plural bureaux de change, both BURE-oh də SHONZH; British English) or currency exchange (American English) is a business where people can buy or sell a foreign currency.
FinanceCasablanca Finance City
Casablanca Finance City (CFC; Arabic: القطب المالي للدار البيضاء) is a financial and business center located in Casablanca, Morocco. It serves as a regional hub for financial institutions, multinational corporations, and professional service firms operating in Africa.
FinanceChūō-ku, Osaka
Chūō-ku (中央区; 'Central Ward') is one of 24 wards of Osaka, Japan. It has an area of 8.88 km2, and a population of 60,085. It houses Osaka's financial district, as well as the Osaka Prefecture offices and principal shopping and tourist areas.
FinanceChurch tax
A church tax is a tax collected by the state from members of some Christian denominations to provide financial support of churches, such as the salaries of its clergy and to pay the operating cost of the church. It is related to the concept of tithes and offerings. Not all Christian countries have such a tax. In some countries that do, people who are not members of a religious community
FinanceConduit and sink OFCs
Conduit OFC and sink OFC is an empirical quantitative method of classifying corporate tax havens, offshore financial centres (OFCs) and tax havens.
FinanceCorporate Enforcement Authority
The Corporate Enforcement Authority (CEA) is the competent authority in Ireland for the general promotion of compliance with the Companies Acts, the investigation of breaches of the Companies Acts and the taking of any necessary enforcement actions to ensure continued compliance.
FinanceFinancial Secrecy Index
The Financial Secrecy Index (FSI) is the report published by the advocacy organization Tax Justice Network (TJN) which ranks countries by financial secrecy indicators, weighted by the economic flows of each country.
FinanceGlobal Industry Classification Standard
The Global Industry Classification Standard (GICS) is an industry taxonomy developed in 1999 by MSCI and Standard & Poor's (S&P) for use by the global financial community. The GICS structure consists of 11 sectors, 25 industry groups, 74 industries and 163 sub-industries into which S&P has categorized all major public companies. The system is similar to ICB (Industry Classification Benc
Trading basicsHillary Clinton cattle futures controversy
In 1978 and 1979, lawyer and First Lady of Arkansas Hillary Rodham Clinton engaged in a series of trades of cattle futures contracts. Her initial $1,000 investment had generated nearly $100,000 (equivalent to $443,603.85 in 2025), when she stopped trading after ten months. In 1994, after Clinton had become First Lady of the United States, the trading became the subject of considerable co
FinanceInsurance
Insurance is a means of protection from financial loss in which, in exchange for a fee, a party agrees to compensate another party in the event of a certain loss, damage, or injury. It is a form of risk management, primarily used to protect against the risk of a contingent or uncertain loss.
FinanceKing Abdullah Financial District
King Abdullah Financial District (KAFD) or simply Al-Maliyyah is a major mixed-use financial district located in the Al-Aqeeq neighbourhood of Riyadh, Saudi Arabia. It serves as the country's financial centre and a central hub for banking, investment, and professional services.
Payments & settlementLiberty Reserve
Liberty Reserve was a Costa Rica-based centralized digital currency service that billed itself as the "oldest, safest and most popular payment processor, serving millions all around a world". Liberty Reserve was conceived as a "PayPal for the unbanked," allowing the 2.5 billion people without bank accounts or credit histories to participate in the modern economy. The site had over one mi
Payments & settlementManual fare collection
Manual fare collection is the practice of collecting fares manually (without the aid of an automated machine). "Fare collection" generally refers to the collection of fares in the transport industry in return for a ticket or passes to travel. Commonly used on buses and train transport systems (in the UK; in Poland, for example, buying and validating the tickets by machine is the passenge
FinanceMinistry of Economy and Finance (Morocco)
The Ministry of Economy and Finance is the ministerial department of the government of Morocco responsible for the development and implementation of the country's economic policy and financial policy.
FinanceMinistry of Finance (Denmark)
The Ministry of Finance of Denmark (Danish: Finansministeriet) is a ministry in the Government of Denmark. Among other things, it is in charge of the government budget (subject to approval by the Danish parliament, Folketinget), paying government employees and improving efficiency in government administration. The current Finance Minister of Denmark is Nicolai Wammen.
FinanceMinistry of Finance (Vietnam)
The Ministry of Finance (MOF, Vietnamese: Bộ Tài chính) is the government ministry responsible for the finances of Vietnam, including managing the national budget, tax revenue, state assets, national financial reserves and the finances of state corporations. The Ministry manages the work of national accounting, state borrowing, the activities of stock markets, and the Department of Custo
FinanceMinistry of Finance and Economic Planning (Rwanda)
The Ministry of Finance and Economic Planning (MINECOFIN) is the ministry of the Government of Rwanda in charge of public finance and economic planning. It was created in 1997 by merging the Ministry of Finance and the Ministry of Planning.
Payments & settlementNexi
Nexi S.p.A., formerly known as Istituto Centrale delle Banche Popolari Italiane S.p.A. (ICBPI), is an Italian company that offers digital payment services and infrastructure for banks, companies, institutions, and public administrations.
FinanceNorthern Quarter, Brussels
The Northern Quarter (French: Quartier Nord [kaʁtje nɔʁ] or Espace Nord [ɛspas nɔʁ]; Dutch: Noordwijk [ˈnoːrtʋɛik] or Noordruimte [ˈnoːrtˌrœymtə]) is the central business district of Brussels, Belgium. Like La Défense in Paris, the Docklands in London or the Zuidas in Amsterdam, the Northern Quarter consists of a concentration of high-rise buildings where many Belgian and multinational
Payments & settlementRioCard
The RioCard (Bilhete Único) is a smartcard system used in the transport system of Rio de Janeiro state, Brazil. The card is contactless and uses MIFARE technology. It is a form of electronic payment produced and distributed by the Fetranspor company, in cooperation with Itaú bank. Its installation was seen as strengthening Brazil's connection with the Open Standard for Public Transport
Trading basicsSecurities Transaction Tax
Securities Transaction Tax (STT) is a tax payable in India on the value of securities (excluding commodities and currency) transacted through a recognised stock exchange. As of 2016, it is 0.1% for delivery based equity trading.
Fiat currenciesSpahn tax
A Spahn tax is a type of currency transaction tax that is meant to be used for the purpose of controlling exchange-rate volatility. This idea was proposed by Paul Bernd Spahn in 1995.
FinanceTax haven
A tax haven is a term, often used pejoratively, to describe a place with very low tax rates for non-domiciled investors, even if the official rates may be higher.
FinanceTaxation in Cyprus
Taxes in Cyprus are levied by both the central and local governments. Tax revenue stood at 39.2% of GDP in 2012. The most important revenue sources are the income tax, social security, value-added tax and corporate tax, and are all collected by the central government.
Payments & settlementWorldline SA
Worldline SA is a French payment processing company founded in 1972. In 2024 its revenue was €4.63 billion.
FinanceYeouido
Yeouido (Korean: 여의도; lit. 'Yeoui Island'), also Yoido, is a river island on the Han River in Seoul, South Korea. It is Seoul's main finance, media, and investment banking district. It is 8.4 square kilometres (3.2 mi2) large and has a population of 32,674 as of August 2023.