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Digital assets and currencies
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Triffin dilemma
In international finance, the Triffin dilemma (sometimes the Triffin paradox) is the conflict of economic interests that arises between short-term domestic and long-term international objectives for countries whose currencies serve as global reserve currencies. This dilemma was identified in the 1960s by Belgian-American economist Robert Triffin. He noted that a country whose currency i
Trading basicsTrillion dollar club (macroeconomics)
The Trillion dollar club is an unofficial classification of the world's major economies with a gross domestic product (nominal GDP) of more than US$1 trillion per year. As of 2025, it included 21 countries. This does not include purchasing power parity, which increases the GDP of many countries with an undervalued currency, which are usually poorer countries.
Payments & settlementTruck wages
Truck wages are wages paid not in conventional money but instead in the form of payment in kind (i.e. commodities, including goods and/or services); credit with retailers; or a money substitute, such as scrip, chits, vouchers or tokens. Truck wages are a characteristic of a truck system, and are banned by the labour legislation of many countries.
AssetsTrust Wallet
Trust Wallet is a multi‑chain, non‑custodial cryptocurrency wallet that allows users to store, send, receive, and manage digital assets across more than 100 blockchain networks. Available as a mobile app for iOS and Android and as a browser extension, the wallet supports decentralized finance (DeFi), NFTs, crypto staking, token swapping, and access to decentralized applications (dApps).
Trading basicsTrusted Shops
Trusted Shops is a company founded in Cologne, Germany, in 1999, which offers online shops and their customers trust-building services by means of a trustmark, a money-back guarantee process and a system of customer reviews. Online retailers are also provided with assistance in meeting legal requirements. Around 25,000 online shops display the trustmark as of July 2019.
FinanceTryton
Tryton is a three-tier high-level general purpose computer application platform on top of which is built an enterprise resource planning (ERP) business solution through a set of Tryton modules.
Payments & settlementTSYS
Total System Services, Inc. (TSYS) is an American financial technology company based in Columbus, Georgia, that provides payment processing services, merchant services and related payment services. It also provides reloadable prepaid debit cards and payroll cards, and demand deposit accounts to the underbanked.
Trading basicsTuloy Foundation
The Tuloy Foundation, Inc. is a Philippine charitable organization focused on the marginalized youth. It was founded in 1993 by Marciano G. Evangelista of the Salesians of Don Bosco.
Trading basicsTurkmen manat
The manat (Turkmen: manat; abbreviation: m; code: TMT) is the currency of Turkmenistan. The original manat was introduced on 1 November 1993, replacing the ruble at a rate of 1 manat = Rbls 500. The manat is subdivided into 100 tenge (Turkmen: teňňe).
FinanceTurquoise (trading platform)
Turquoise is an equities trading platform (multilateral trading facility or MTF), created by nine major investment banks in 2008. The aim was to provide dealing services at a 50% discount to traditional exchanges. It is a hybrid system that allows trading both on and off traditional exchanges. The system was advertised as a "pan-European platform based in London".
Trading basicsTuvaluan dollar
The Tuvaluan dollar is one of the currencies of Tuvalu, whose unofficial international currency code is TVD. Tuvalu has never had banknotes of its own, and has been issuing coins since 1976. However, the Tuvaluan dollar is used as a unit of account, and is pegged to the Australian dollar (the other currency of Tuvalu) at parity. From 1966 to 1976, Tuvalu officially used the Australian do
Payments & settlementTWINT
Twint is a Swiss mobile payment system rolled out nation-wide in 2017. As of 2024, Twint has become ubiquitous in Switzerland, with many stores accepting Twint payments and nearly all banks taking part in the payment system. The app was developed by Monexio, a wholly owned subsidiary of PostFinance, beginning in 2014.
Fiat currenciesU.S. Dollar Index
The U.S. Dollar Index (USDX, DXY, DX, or, informally, the "Dixie") is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies, often referred to as a basket of U.S. trade partners' currencies. The Index goes up when the U.S. dollar gains "strength" (value) when compared to other currencies.
Trading basicsUbiquitous commerce
Ubiquitous Commerce also known as U-Commerce, u commerce or uCommerce (not 'U.Commerce'), refers to a variety of goods and/or services. Sometimes, it is used to refer to the wireless, continuous communication and exchange of data and information between and among retailers, customers, and systems (e.g., applications) regardless of location, devices used, or time of day.
Trading basicsUK Government Investments
UK Government Investments (UKGI) is a company owned by the United Kingdom government which combines the former functions of the Shareholder Executive and UK Financial Investments. UKGI manages a portfolio of businesses, including Channel Four Television Corporation and previously NatWest Group.
Trading basicsUkash
Ukash was a UK-based electronic money system that allowed users to exchange their cash for a secure code to make payments online. It was acquired by Skrill Group in April 2014 and merged into Austrian competitor paysafecard, acquired by Skrill a year earlier. All existing vouchers expired after 31 October 2015. Remaining ones could be exchanged into paysafecard PINs, in May 2016 paysafec
FinanceUnbanked
The unbanked are adults who do not have their own bank accounts. Along with the underbanked, they may rely on alternative financial services for their financial needs, where these are available.
Trading basicsUnderwriting spot
An underwriting spot, also known as sponsor credit, is an announcement made on public broadcasting outlets, especially in the United States, in exchange for funding. These spots usually mention the name of the sponsor, and can resemble traditional television advertisements in commercial broadcasting to a limited extent; however, under the terms of a public broadcaster's license from the
BankingUnified Payments Interface
Unified Payments Interface (UPI) is an Indian instant payment system and protocol developed by the National Payments Corporation of India (NPCI) in April 11th 2016. The interface facilitates inter-bank peer-to-peer (P2P) and person-to-merchant (P2M) transactions. It is used on mobile devices to instantly transfer funds between two bank accounts using only a unique UPI ID. It runs as an o
BankingUnionPay
UnionPay (Chinese: 银联; pinyin: Yínlián), also known as China UnionPay (Chinese: 中国银联; pinyin: Zhōngguó Yínlián) or by its abbreviation, CUP or UPI internationally, is a Chinese state-owned financial services corporation headquartered in Shanghai, China. It provides bank card services and a major card scheme in mainland China. Founded on 26 March 2002, China UnionPay is an association fo
FinanceUnisys
Unisys Corporation is an American technology company founded in 1986 and headquartered in Blue Bell, Pennsylvania. The company provides cloud, AI, digital workplace, logistics, and enterprise computing services.
Trading basicsUnit of account
In economics, unit of account, sometimes called currency unit or monetary unit, is a standard unit of measurement of the market value of goods, services, and other transactions. Also known as a measure of relative worth and a standard of deferred payment, a unit of account is a necessary prerequisite for the formulation of commercial agreements that involve debt.
FinanceUnited Kingdom insolvency law
United Kingdom insolvency law regulates companies in the United Kingdom which are unable to repay their debts. While UK bankruptcy law concerns the rules for natural persons, the term insolvency is generally used for companies formed under the Companies Act 2006. Insolvency means being unable to pay debts. Since the Cork Report of 1982, the modern policy of UK insolvency law has been to
FinanceUnited States Department of the Treasury
The Department of the Treasury (USDT) is the national treasury and finance department of the federal government of the United States. It is one of 15 current U.S. government departments. The treasury executes currency circulation in the domestic fiscal system, collects all federal taxes through the Internal Revenue Service, manages U.S. government debt, licenses and supervises banks and
Fiat currenciesUnited States dollar
The United States dollar (symbol: $; currency code: USD) is the official currency of the United States (U.S.) and several other countries. The U.S. Coinage Act of 1792 established the dollar as the base unit, with each dollar divided into 100 cents (symbol: ¢). U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green col
Fiat currenciesUnited Stock Exchange of India
United Stock Exchange of India Limited, also known as the United Stock Exchange (USE), is an Indian government owned stock exchange. It is the 4th pan-India exchange launched for trading financial instruments in India. USE represents the commitment of 21 Indian public sector banks, private banks, international banks and corporate houses to build an institution of repute. Mr. Gaurav Arora
BankingUniversal bank
A universal bank is a type of bank which participates in many kinds of banking activities and is both a commercial bank and an investment bank as well as providing other financial services such as insurance. These are also called full-service financial firms, although there can also be full-service investment banks which provide wealth and asset management, trading, underwriting, researc
Trading basicsUpfront (advertising)
An upfront is a gathering at the start of important advertising sales periods, held by network and streaming executives and attended by major advertisers and the media. Where once the Upfronts were all about the television industry, it has expanded to include streaming platforms. It is so named because of its main purpose, to allow marketers to buy television commercial airtime "up front
Securities & exchangesUptick rule
The uptick rule is a trading restriction that states that short selling a stock is allowed only on an uptick. For the rule to be satisfied, the short must be either at a price above the last traded price of the security, or at the last traded price when the most recent movement between traded prices was upward (i.e. the security has traded below the last-traded price more recently than a
NetworksUrbit
In computing, Urbit is a decentralized personal server platform based on functional programming in a peer-to-peer network.
FinanceValuation risk
Valuation risk is the risk that an entity suffers a loss when trading an asset or a liability due to a difference between the accounting value and the price effectively obtained in the trade.
FinanceValue added
Value added is a term in economics for calculating the difference between market value of a product or service, and the sum value of its constituents. It is relatively expressed by the supply-demand curve for specific units of sale. Value added is distinguished from the accounting term added value which measures only the financial profits earned upon transformational processes for specif
Trading basicsValue averaging
Value averaging (VA), also known as dollar value averaging (DVA), is a technique for adding to an investment portfolio that is controversially claimed to provide a greater return than other methods such as dollar cost averaging. With the method, investors add to (or withdraw from) their portfolios in such a way that the portfolio balance reaches a predetermined monthly or quarterly targe
Securities & exchangesValue investing
Value investing is an investment paradigm that involves buying securities that appear underpriced by some form of fundamental analysis. Modern value investing derives from the investment philosophy taught by Benjamin Graham and David Dodd at Columbia Business School starting in 1928 and subsequently developed in their 1934 text Security Analysis.
BankingVancity
Vancouver City Savings Credit Union, commonly referred to as Vancity, is a member-owned financial co-operative headquartered in Vancouver, British Columbia, Canada. By asset size, Vancity is the largest community credit union in Canada as of 2019, with CA$28.2 billion in assets plus assets under administration, 60 branches and more than 543,000 members.
Trading basicsVem
The VEM (Acronym of Vale eletrônico Metropolitano, Electronic Metropolitan Ticket) is a Smart card system used in bus, train and metro of the metropolitan area of Recife, Brazil.
Payments & settlementVenmo
Venmo is an American mobile payment service founded in 2009 and owned by PayPal since 2013. Venmo is aimed at users who wish to split their bills or pay a business. Account holders can transfer funds to others via a mobile phone app. Account holders must be residents of the United States. Venmo also operates as a small social network, as users can observe other users' public transactions
Payments & settlementVerifi
Verifi, Inc. is an American financial technology company that provides dispute management and chargeback prevention tools for card-not-present payments. Founded in 2005 and headquartered in Los Angeles, California, Verifi offers products including Order Insight, Rapid Dispute Resolution (RDR), and the Cardholder Dispute Resolution Network (CDRN) to help merchants, issuers, and acquirers
Payments & settlementVerifone
Verifone, Inc. is an American multinational corporation headquartered in New York City, New York. Verifone provides technology for electronic payment transactions and value-added services at the point-of-sale. Verifone sells merchant-operated, consumer-facing and self-service payment systems to the financial, retail, hospitality, petroleum, government and healthcare industries. The compa
Payments & settlementVersapay
Versapay is a North American financial technology company headquartered in San Francisco, California. Versapay specializes in account receivable software and cash application for midsized businesses. Versapay products include digital invoicing and customer portal, collections management, B2B payment services, cash application, reporting and reconciliation, and ERP integrations. It was li
Trading basicsVideo tolling
Video tolling (sometimes referred to as video billing, toll by plate, pay by mail, or pay by plate) is a form of electronic toll collection that uses video or still images of a vehicle's license plate to identify a vehicle liable to pay a road toll. The system dispenses with collection of road tolls using road-side cash or payment card methods, and may be used in conjunction with "all el
Payments & settlementVipps
Vipps is a Norwegian mobile payment application designed for smartphones originally developed by DNB. Vipps was released May 30, 2015 and, having reached 1 million users by November 5, 2015, Vipps became Norway's largest payment application. Although Vipps was developed by DNB, customers of any Norwegian bank can use it. Vipps is a member of the European Mobile Payment Systems Associatio
Trading basicsVix Technology
Vix Technology (Vix) is an Australian company that designs, supplies and operates automated fare collection (AFC) systems, intelligent transportation systems (ITS), access, payment and passenger information display systems (PIDS) for the public transit industry.
Payments & settlementVocalink
Vocalink is a payment systems company headquartered in the United Kingdom, created in 2007 from the merger between Voca and LINK. It designs, builds and operates the UK payments infrastructure, which underpins the provision of the Bacs payment system and the UK ATM LINK switching platform covering 65,000 ATMs and the UK Faster Payments systems.
FinanceVolatility (finance)
In finance, volatility (usually denoted by "σ") is the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns.
Securities & exchangesVoting interest
Voting interest (or voting power) in business and accounting means the total number, or percent, of votes entitled to be cast on the issue at the time the determination of voting power is made, excluding a vote which is contingent upon the happening of a condition or event which has not occurred at the time.
Payments & settlementVugaPay
VugaPay is a cross-platform payment service owned by Vuga Ltd, a Rwandan company. It allows businesses and users to transfer money across major payment systems, including credit card networks, mobile money and Bitcoin via an application programming interface, unstructured supplementary service data interface, a mobile phone app, or a web interface. It processed over 5 million transaction
BankingWarburg family
The Warburg family is a prominent German and American banking family. They are noted for their varied accomplishments in biochemistry, botany, political activism, economics, investment banking, law, physics, classical music, art history, pharmacology, physiology, finance, private equity and philanthropy.
Trading basicsWealth inequality in the United States
The inequality of wealth (i.e., inequality in the distribution of assets) has substantially increased in the United States since the late 1980s. Wealth commonly includes the values of any homes, automobiles, personal valuables, businesses, savings, and investments, less any associated debts.
NetworksWeb3
Web3 is an idea for a new iteration of the World Wide Web which incorporates concepts such as decentralization, blockchain technologies, tokenomics, and privacy-enhancing technologies. The term is sometimes confused with the Semantic Web, as both have sometimes been referred to as "Web 3.0". Some technologists and journalists have contrasted it with Web 2.0, in which they say user-genera
Payments & settlementWebMoney
WebMoney is an online payment settlement system established in Russia in 1998. It is one of the largest electronic payments processors in Russia by number of users, with the company reporting 45 million registered accounts and 300,000 active weekly users in early 2020, and 100,000 stores accepting payments via the system. WebMoney is owned and operated by WM Transfer Ltd.
Payments & settlementWeChat Pay
WeChat Pay (Chinese: 微信支付; pinyin: Wēixìn Zhīfù) is a mobile payment and digital wallet service by WeChat based in China that allows users to make mobile payments and online transactions. As of March 2016, WeChat Pay had over 300 million users. WeChat Pay reached 1.133 billion active users in 2023. WeChat Pay's main competitor in China and the market leader in online payments is Alibaba
Trading basicsWei Dai
Wei Dai (Chinese: 戴维) is a computer engineer known for contributions to cryptography and cryptocurrencies. He developed the Crypto++ cryptographic library, proposed the b-money cryptocurrency system, and co-proposed the VMAC message authentication algorithm.
Payments & settlementWero
Wero is a European digital wallet and instant account-to-account payment service developed by the European Payments Initiative (EPI). It was launched in Germany on 2 July 2024, followed by France and Belgium later that year. Wero is currently available in Belgium, France, Germany, Luxembourg, and the Netherlands. Leading Austrian banks are planning to introduce the service.
Trading basicsWhat Has Government Done to Our Money?
What Has Government Done to Our Money? is a 1963 book by Murray N. Rothbard that details the history of money, from early barter systems, to the gold standard, to present day systems of paper money.
BankingWilhelm Ernst Barkhoff
Wilhelm Ernst Barkhoff (26 June 1916 – 30 September 1994) was a German solicitor, founder of anthroposophically oriented alternative banking, the GLS Bank, reformer of the German welfare system and inspirer of the movement for Ethical banking.
Fiat currenciesWilliam A. Barnett
William Arnold Barnett (born October 30, 1941) is an American economist, whose current work is in the fields of chaos, bifurcation, and nonlinear dynamics in socioeconomic contexts, econometric modeling of consumption and production, and the study of the aggregation problem and the challenges of measurement in economics.
Trading basicsWincor Nixdorf
Wincor Nixdorf was a German corporation that provided retail and retail banking hardware, software, and services. Wincor Nixdorf was engaged primarily in the sale, manufacture, installation and service of self-service transaction systems (such as ATMs), retail banking equipment, lottery terminals, postal terminals, software and services for global financial and commercial markets.
Trading basicsWire transfer
Wire transfer, bank transfer, or credit transfer, is a method of electronic funds transfer from one person or entity to another. A wire transfer can be made from one bank account to another bank account, or through a transfer of cash at a cash office.
Payments & settlementWirecard
Wirecard AG is an insolvent German payment processor and financial services provider whose former CEO, COO, two board members, and other executives have been arrested or otherwise implicated in criminal proceedings. The company offered electronic payment transaction services and risk management, and issued and processed physical and virtual cards. As of 2017, the company was listed on th
BankingWolfsberg Group
The Wolfsberg Group is an association of 12 global banks which aims to develop frameworks and guidance for the management of financial crime risks.
Payments & settlementWooCommerce
WooCommerce is an open-source e-commerce plugin for WordPress. It is designed for online merchants of all sizes using WordPress. Launched on September 27, 2011, the plugin gained popularity for its simplicity to install and customize and for the market position of the base product as freeware (even though many of its optional extensions are paid and proprietary). WooCommerce is developed
FinanceWorking Group on Financial Markets
The President's Working Group on Financial Markets, known colloquially as the Plunge Protection Team, or "(PPT)" was created by Executive Order 12631, signed on March 18, 1988, by United States President Ronald Reagan.
Fiat currenciesWorld currency
A world currency, supranational currency, or global currency is a currency that is widely used in international finance or in international trade to price goods or other transactions. It is generally a currency which is stable in terms of inflation and has a high demand on the foreign exchange market. Greek and Roman coins were the first world currency, followed by Dutch guilders in the
Trading basicsWorld Trade Organization
The World Trade Organization (WTO) is an intergovernmental organization that regulates and facilitates international trade. Established on 1 January 1995, pursuant to the 1994 Marrakesh Agreement, it succeeded the General Agreement on Tariffs and Trade (GATT), which was created in 1948. As the world's largest international economic organization, the WTO has 166 members, representing over
Payments & settlementWorldpay, Inc.
Worldpay is an American multinational financial technology company and payment processing company. It provides payment and technology services to merchants and financial institutions globally generating 40 billion transactions across 146 countries and 135 currencies.
Trading basicsWorldRemit
WorldRemit is a digital cross border remittance business that provides international money transfer and remittance services in more than 130 countries and over 70 currencies. It was founded in 2010 by Ismail Ahmed, Catherine Wines, and Richard Igoe. It is owned by Zepz, which also owns Sendwave.
FinanceXBRL
XBRL (Extensible Business Reporting Language) is a freely available global framework for exchanging business information. XBRL allows the expression of semantics commonly required in business reporting. The standard was originally based on XML, but now supports reports in JSON and CSV formats in addition to the original XML-based syntax. XBRL is also increasingly used in its Inline XBR
Trading basicsXE.com
Xe.com (Xe) is a Canada-based online foreign exchange tools and services company headquartered in Newmarket, Ontario. It is best known for its online currency converter application that offers exchange rate information, international money transfers, and other currency-related services via its website, mobile apps, and other online channels. It has been a subsidiary of Euronet Worldwid
Trading basicsXoom (money transfer service)
Xoom (previously known as Xoom Corporation) is a digital money transfer service owned by PayPal that enables users to send money internationally to recipients in 160 countries. The service allows individuals in the United States, Canada, the United Kingdom, and select European countries to transfer funds through bank deposit, mobile wallet, and cash pickup options. Xoom also offers inter
Trading basicsXsolla
Xsolla is an American financial technology company that makes payment software for video games. It was founded in 2005 in Perm, Russia, by Aleksandr Agapitov. As of 2022, it had 500 employees. The company's core product is Pay Station, a suite of tools for integrating payment systems. It can be used to accept more than 1000+ payment types in more than 200 countries. Xsolla software was u
Payments & settlementYape (payment)
Yape (pronounced [ˈʝape]) is a digital wallet and mobile payment application developed by the Banco de Crédito del Perú (BCP) in 2016. As of 2025, it has over 20 million users. Its features include instant, commission-free peer-to-peer transfers, bill payments, and purchases using a smartphone via a phone number or QR code, without requiring a traditional bank account, enabling its use b
FinanceYeltsin–Gaidar government reforms
The Yeltsin–Gaidar government reforms (Russian: Реформы правительства Ельцина — Гайдара), known also as the Gaidar reforms are the changes in the economy of Russia and public administration system carried out by the Cabinet of Boris Yeltsin and Yegor Gaidar from January 2 to December 15, 1992.
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.
FinanceYield (finance)
In finance, the yield on a security is a measure of the ex-ante return to a holder of the security. It is one component of return on an investment, the other component being the change in the market price of the security. It is a measure applied to fixed income securities, common stocks, preferred stocks, convertible stocks and bonds, annuities and real estate investments.
Payments & settlementYooKassa
YooKassa branded as ЮKassa (Previously Yandex.Checkout) (Russian: Яндекс.Касса), is a Russian E-commerce payment system operated by YooMoney, owned by Sberbank. It was launched in 2013.
Payments & settlementYooMoney
YooMoney branded as ЮMoney, (formerly Yandex.Money) is an e-commerce payment system. It is 100% owned by Sberbank and operates in Russia and nearby countries.
Trading basicsZero interest-rate policy
Zero interest-rate policy (ZIRP) is a macroeconomic concept describing conditions with a very low nominal interest rate, such as those in contemporary Japan and in the United States from December 2008 through December 2015 and again from March 2020 until March 2022 amid the COVID-19 pandemic. ZIRP is considered to be an unconventional monetary policy instrument and can be associated with
Trading basicsZero lower bound
The zero lower bound (ZLB) or zero nominal lower bound (ZNLB) is a macroeconomic problem that occurs when the short-term nominal interest rate is at or near zero, causing a liquidity trap and limiting the central bank's capacity for inflation targeting.
Trading basicsZero-based budgeting
Zero-based budgeting (ZBB) is a budgeting method that requires all expenses to be justified and approved in each new budget period. It was developed by Peter Pyhrr in the 1970s. This budgeting method analyzes an organization's needs and costs by starting from a "zero base" (meaning no funding allocation) at the beginning of every period. The intended outcome is to assess the efficient us
Payments & settlementZettle
Zettle by PayPal (previously known as iZettle) is a Swedish financial technology company founded by Jacob de Geer and Magnus Nilsson in April 2010. Launching its first app and service in 2011, the company offers a range of financial products including payments, point of sales, funding and partners applications. The company was acquired by PayPal in 2018.
BankingZolotaya Korona
Zolotaya Korona (brand KoronaPay) is a Russian payment system offering various services to individuals through its own online platforms and those of its partners, including banks and retail chains. These services include cash-to-cash transfers, online card-to-cash transfers, online card-to-card transfers, and online and offline loan repayment in the partner network service points.
Payments & settlementZong (payments provider)
Zong was a mobile payment company that allowed users to make micropayments on the Internet if they have a postpaid mobile phone. The payments were charged to their mobile phone bills by the mobile operator. The company was acquired by eBay in 2011 and disappeared in 2015.