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Finance

1975 New York City fiscal crisis

In 1975, New York City had a severe fiscal crisis after accumulating $14 billion of debt, of which $6 billion was short-term debt. The city ran out of money in its budget, and had an operating deficit of more than $600 million, with some estimates placing the deficit at $2.2 billion. The city had a credit rating that excluded it from the credit markets.

Finance

2006–2012 New Zealand finance company collapses

Between May 2006 and the end of 2012 there were 67 finance company collapses in New Zealand, including companies entering into liquidation, receivership or moratoria. An inquiry by the New Zealand Parliament estimated losses at over $3 billion that affected between 150,000 and 200,000 depositors. The most high-profile collapses were South Canterbury Finance, Hanover Finance and Bridgecor

Banking

Annual percentage rate

Annual percentage rate of charge (APR), corresponding sometimes to a nominal APR and sometimes to an effective APR (EAPR), is the interest rate for a whole year (annualized), rather than just a monthly fee/rate, as applied on a loan, mortgage loan, credit card, etc. It is a finance charge expressed as an annual rate. Those terms have formal, legal definitions in some countries or legal j

Trading basics

Aptina

Aptina Imaging Corporation was a company that sold CMOS imaging products. Its CMOS sensors were used in the Nikon V1 (10.1 MP, CX format, 16.9x17.9 mm), Nikon J1, and Nikon V2. By 2009, Aptina had a 16% share of the CMOS image sensors market, with revenue estimated at $671 million. The company was acquired in 2014 by ON Semiconductor

Securities & exchanges

Arthur Dantchik

Arthur Dantchik (born 1957) is an American billionaire businessman and philanthropist who is a co-founder and the managing director of Susquehanna International Group, a Bala Cynwyd, Pennsylvania-based financial services firm founded in 1987. As of September 2026, Dantchik's net worth was estimated at $19.5 billion.

Securities & exchanges

Bernie Madoff

Bernard Lawrence Madoff (; April 29, 1938 – April 14, 2021) was an American financier, con artist, and stock broker who was the admitted mastermind of the largest-known Ponzi scheme in history, worth an estimated $65 billion. He was at one time chairman of the Nasdaq stock exchange. Madoff's firm had two basic units: a stock brokerage and an asset management business; the Ponzi scheme w

Securities & exchanges

Bill Ackman

William Albert Ackman (born May 11, 1966) is an American billionaire hedge fund manager who is the founder and chief executive of Pershing Square Capital Management, an investment management company. He has been described as an activist investor. As of April 2026, Ackman's net worth was estimated at $8 billion by Bloomberg.

Securities & exchanges

Black–Scholes model

The Black–Scholes or Black–Scholes–Merton model is a mathematical model for the dynamics of a financial market containing derivative investment instruments. From the parabolic partial differential equation in the model, known as the Black–Scholes equation, one can deduce the Black–Scholes formula, which gives a theoretical estimate of the price of European-style options and shows that t

Trading basics

Borrowing base

Borrowing base is an accounting metric used by financial institutions to estimate the available collateral on a borrower's assets in order to evaluate the size of the credit that may be extended. Typically, the calculation of borrowing base is used for revolving loans, and the borrowing base determines the maximum credit line available to the borrower. Occasionally, borrowing base is als

Securities & exchanges

Bruce Kovner

Bruce Stanley Kovner (born February 1945) is an American billionaire hedge fund manager and philanthropist. He is chairman of CAM Capital, which he established in January 2012 to manage his investment, trading and business activities. From 1983 through 2011, Kovner was founder and chairman of Caxton Associates, a diversified trading company. As of April 2024, his net worth was estimated

Finance

Business valuation

Business valuation is a process and a set of procedures used to estimate the economic value of an owner's interest in a business. Here various valuation techniques are used by the interested counterparties to determine the price they are willing to pay or receive to effect a sale of the business. In addition to estimating the selling price of a business, the same valuation tools are ofte

Trading basics

Capital intensity

Capital intensity is the amount of fixed or real capital present in relation to other factors of production, especially labor. At the level of either a production process or the aggregate economy, it may be estimated by the capital to labor ratio, such as from the points along a capital/labor isoquant. The inverse of capital intensity is labor intensity. Capital intensity is sometimes as

Trading basics

City quality of life indices

City quality of life indices are lists of cities that are ranked according to a defined measure of living conditions. In addition to considering the provision of clean water, clean air, adequate food and shelter, many indexes also measure more subjective elements including a city's capacity to generate a sense of community and offer hospitable settings for all, especially young people, t

Finance

Cost of the Olympic Games

The Olympic Games are considered to be the world's foremost international sporting event with over 200 nations participating. It historically had the highest costs and expenses for the hosts, with the estimated cost of the 2016 Summer Games in Rio de Janeiro being at approximately US$11.1 billion.

Finance

Credit score in the United States

A credit score is a numerical expression derived from an analysis of an individual's credit history and credit report, used to estimate the relative likelihood that the individual will repay debts and meet other financial obligations. As a standardized and comparatively low-cost method of evaluating borrowers, credit scoring serves as a primary alternative to traditional forms of loan un

Trading basics

Duration (finance)

In finance, duration is a measure of how the price of a fixed-income instrument responds to a change in interest rates. It is used to compare rate risk across bonds and to construct hedges, and is often paired with convexity and the price value of a basis point. Duration-based estimates work best for small, parallel shifts in the yield curve.

Trading basics

Economic stagnation

Economic stagnation is a prolonged period of slow economic growth, typically measured in GDP per capita growth or median income growth, which is usually accompanied by high unemployment. Under some definitions, slow means significantly slower than potential growth as estimated by macroeconomists, even though the growth rate may be nominally higher than in other countries not experiencing

Trading basics

Economic value added

In accounting, as part of financial statements analysis, economic value added (EVA) is an estimate of a firm's economic profit, or the value created in excess of the required return of the company's shareholders. EVA is the net profit less the capital charge ($) for raising the firm's capital. The idea is that value is created when the return on the firm's economic capital employed excee

Securities & exchanges

Eddie Lampert

Edward Scott Lampert (born July 19, 1962) is an American billionaire businessman. He is the former chief executive and chairman of Sears Holdings, the founder of Transformco, and the founder, chairman, and chief executive of ESL Investments. Until May 2007, he was a director of AutoNation. He was a director of AutoZone from 1999 to 2006. As of December 2025, his net worth was estimated a

Securities & exchanges

Edward Johnson III

Edward Crosby "Ned" Johnson III (June 29, 1930 – March 23, 2022) was an American businessman. In 2019, his net worth was estimated at US$8.2 billion.

Trading basics

Email spam

Email spam, also referred to as junk email, spam mail, or simply spam, refers to unsolicited messages sent in bulk via email. The term originates from a Monty Python sketch, where the name of a canned meat product, "Spam", is used repetitively, mirroring the intrusive nature of unwanted emails. Since the early 1990s, spam has grown significantly, with estimates suggesting that by 2014, i

Finance

Estimates Committee

The Estimates Committee (India) is a committee of selected members of parliament, constituted by the Parliament of India (the Lok Sabha), for the purpose of scrutinising the functioning of government ministries and departments in terms of expenditure and utilisation of funds. It also suggests alternative policies in order to bring about efficiency and economy in administration. It also e

Trading basics

Fair value

In economics and accounting, fair value is a rational and unbiased estimate of the potential market price of a good, service, or asset. The derivation takes into account such objective factors as the costs associated with production or replacement, market conditions and matters of supply and demand. Subjective factors may also be considered such as the risk characteristics, the cost of

Trading basics

Faith-based marketing

Faith-based marketing is the integration of religious faith into marketing and business. Such agencies specialize in marketing faith-based products and creating partnerships that target specific groups, such as the family-based audience. In the United States this type of marketing can help reach Christians, who enjoy an estimated purchasing power of over $5.1 trillion a year. Marketing r

Trading basics

Food prices

Food prices refer to the average price level for food across countries, regions and on a global scale. Food prices affect producers and consumers of food. Price levels depend on the food production process, including food marketing and food distribution. Fluctuation in food prices is determined by a number of compounding factors. Geopolitical events, global demand, exchange rates, govern

Finance

Geneva Freeport

Geneva Freeport (French: Ports Francs et Entrepôts de Genève SA) is a warehouse complex in Geneva, Switzerland, for the storage of art and other valuables and collectibles. It is the world's oldest and largest freeport facility, and the one with the most artworks, with 40% of its collection being art with an estimated value of US$100 billion.

Securities & exchanges

Gregg Hymowitz

Gregg S. Hymowitz (born November 16, 1965) is an American billionaire who is the chairman, chief executive officer and founder of EnTrust Global, a diversified alternative investment firm. Hymowitz is an activist investor, known for his bold investment strategy. According to Forbes, he has an estimated personal net worth of $2 billion as of April 2025.

Trading basics

Imputed rent

Imputed rent is the estimated rental price that an individual would pay for an asset they own. This concept applies broadly to capital goods but is most frequently used in housing markets to measure the rent homeowners would pay for a housing unit equivalent to their own. Imputing housing rent is essential for accurately measuring economic activity in national accounts, as asset owners d

Trading basics

Internal ratings-based approach (credit risk)

Under the Basel II guidelines, banks are allowed to use their own estimated risk parameters for the purpose of calculating regulatory capital. This is known as the internal ratings-based (IRB) approach to capital requirements for credit risk. Only banks meeting certain minimum conditions, disclosure requirements and approval from their national supervisor are allowed to use this approach

Trading basics

Ira Rennert

Ira Leon Rennert (born May 31, 1934) is an American billionaire businessman, and the chairman and CEO of Renco Group. As of November 2024, Forbes estimated his net worth at US$3.8 billion.

Securities & exchanges

Jim Simons

James Harris Simons (April 25, 1938 – May 10, 2024) was an American hedge fund manager, investor, mathematician, and philanthropist. At the time of his death, Simons's net worth was estimated to be $31.4 billion, making him the 55th-richest person in the world. He was the founder of Renaissance Technologies, a quantitative hedge fund based in East Setauket, New York. He and his fund are

Securities & exchanges

John W. Henry

John William Henry II (born September 13, 1949) is an American businessman and the founder of John W. Henry & Company, an investment management firm. He is the principal owner of Liverpool Football Club, the Boston Red Sox, The Boston Globe, co-owner of RFK Racing and former owner of the Pittsburgh Penguins. As of October 2024, Forbes estimated his net worth to be US$5.7 billion.

Trading basics

Jute production in India

Jute production in India is integral to the country’s agricultural and industrial economy. India is the world’s largest producer of jute, accounting for about 75% of estimated world production. Jute is a natural fiber obtained from plants of the genus Corchorus, and is widely used for making sacks, mats, ropes, and eco-friendly packaging materials.

Banking

Libor

The London Inter-Bank Offered Rate (Libor LY-bor) was an interest rate average calculated from estimates submitted by the leading banks in London. Each bank estimated what it would be charged were it to borrow from other banks. It was the primary benchmark, along with the Euribor, for short-term interest rates around the world. Libor was phased out at the end of 2021, with market partic

Banking

Liquidity at risk

Liquidity at risk (LaR) is a financial risk measure that estimates the potential net cash outflows an institution may face over a specified time horizon and confidence level. It is designed to quantify the risk that a bank, investment fund, or corporation will be unable to meet its short-term obligations due to unexpected demands on liquidity. The concept is closely related to Value at R

Trading basics

List of disasters by cost

Disasters can have high costs associated with responding to and recovering from them. This page lists the estimated economic costs of relatively recent disasters.

Trading basics

Mark Attanasio

Mark L. Attanasio (born September 29, 1957) is an American businessman who is currently the principal owner of the Milwaukee Brewers baseball team and the majority shareholder of English football club Norwich City. As of 2026, he is worth an estimated $1.9 billion.

Trading basics

Marketing engineering

Marketing engineering is currently defined as "a systematic approach to harness data and knowledge to drive effective marketing decision making and implementation through a technology-enabled and model-supported decision process".

Trading basics

Marketing mix modeling

Marketing mix modeling (MMM) is a statistical causal inference and forecasting methodology used to estimate the impact of various marketing tactics on product sales. MMMs use statistical models, such as multivariate regressions, and use sales and marketing time-series data. They are often used to optimize advertising mix and promotional tactics with respect to sales, revenue, or profit t

Trading basics

Michael Ashcroft

Michael Anthony Ashcroft, Baron Ashcroft, (born 4 March 1946) is a British-Belizean businessman, pollster and politician. He is a former deputy chairman of the Conservative Party. Ashcroft founded Michael A. Ashcroft Associates in 1972 and was the 132nd richest person in the UK, as ranked by the Sunday Times Rich List 2021, with an estimated fortune of £1.257 billion.

Securities & exchanges

Microcap stock fraud

Microcap stock fraud is a form of securities fraud involving stocks of "microcap" companies, generally defined in the United States as those with a market capitalization of under $250 million. Its prevalence has been estimated to run into the billions of dollars a year. Many microcap stocks are penny stocks, which the SEC defines as a security that trades at less than $5 per share, is no

Trading basics

Micros Systems

Micros Systems, Inc. was an American computer company that manufactured hardware and developed software and services for the restaurant point of sale, hotel, hospitality, sports and entertainment venues, casinos, cruise lines, specialty retail markets, and other similar markets. Analyst estimates cited in 2003 put Micros' market share at about 35% of the restaurant point-of-sale business

Finance

Military budget of Russia

The military budget of Russia is the portion of the overall budget of Russia that is allocated for the funding of the Russian Armed Forces. This military budget finances employee salaries and training costs, the maintenance of equipment and facilities, support of new or ongoing operations, and development and procurement of new weapons, equipment, and vehicles. According to estimates for

Finance

Mortgage broker

A mortgage broker acts as an intermediary who brokers mortgage loans on behalf of individuals or businesses. Traditionally, banks and other lending institutions have sold their own products. As markets for mortgages have become more competitive, however, the role of the mortgage broker has become more popular. In many developed mortgage markets today, (especially in the United States, Ca

Trading basics

Paul Singer

Paul Elliott Singer (born August 22, 1944) is an American hedge fund manager, activist investor, and the founder, president, and co-CEO of Elliott Management. As of September 2025, Forbes estimated his net worth at US$6.7 billion. Fortune described Singer as one of the "smartest and toughest money managers" in the hedge fund industry. A number of sources have branded him a vulture capit

Securities & exchanges

Paul Tudor Jones

Paul Tudor Jones II (born September 28, 1954) is an American billionaire hedge fund manager. In 1980, he founded Tudor Investment Corporation, an asset management firm headquartered in Stamford, Connecticut. Eight years later, he co-founded the Robin Hood Foundation, which focuses on poverty reduction. As of July 2024, his net worth was estimated at US$8.1 billion.

Finance

Personal income in the United States

Personal income is an individual's total earnings from wages, investment interest, and other sources. The Bureau of Labor Statistics reported that median usual weekly earnings for full-time wage and salary workers were $1,251 in the second quarter of 2026, not seasonally adjusted, 4.6 percent higher than a year earlier. For the year 2024, the U.S. Census Bureau estimates that the median

Securities & exchanges

Peter Thiel

Peter Andreas Thiel ( ; born 11 October 1967) is a German-American entrepreneur, venture capitalist, and conservative political activist. A co-founder of PayPal, Palantir Technologies and Founders Fund, he was also the first outside investor in Facebook. As of October 2026, Forbes estimated Thiel's net worth at US$37.7 billion.

Banking

Probability of default

Probability of default (PD) is a financial term describing the likelihood of a default over a particular time horizon. It provides an estimate of the likelihood that a borrower will be unable to meet its debt obligations.

Securities & exchanges

Rakesh Jhunjhunwala

Rakesh Radheyshyam Jhunjhunwala (5 July 1960 – 14 August 2022) was an Indian billionaire investor, stock trader, and Chartered Accountant. He began investing in 1985 with a capital of ₹5,000, with his first major profit in 1986. At the time of his death, he had an estimated net worth of US$5.8 billion, making him the 438th richest person in the world. He was a partner in his own asset ma

Trading basics

Rape culture

Rape culture is a setting, as described by some sociological theories, in which rape is pervasive and normalized due to that setting's attitudes about gender and sexuality. Behaviors commonly associated with rape culture include victim blaming, slut-shaming, sexual objectification, trivialization of rape, denial of widespread rape, refusal to acknowledge the harm caused by sexual violenc

Trading basics

Remittances from the United States

International money transfers made by migrant workers and immigrants sending a portion of their earnings to their families in their country of origin are known as remittances. Remittances are an important aspect of the global economy, totaling an estimated $601 billion (USD) for the year 2015. The United States is currently the largest source of international remittances in the world, se

Trading basics

Remittances to Nepal

Remittances to Nepal are money transfers from Nepalese workers employed outside the country to friends or relatives in Nepal and form part of the wider global remittance transfers by migrant workers back to their home countries. Remittances constitute a substantial economic pillar for Nepal. In 2023, these inward transfers were valued at an estimated US$11 billion, contributing a signifi

Trading basics

Reserve study

In real estate, a reserve study is a long-term capital budget planning tool which identifies the current status of the reserve fund and a stable and equitable funding plan to offset ongoing deterioration, resulting in sufficient funds when those anticipated major common area expenditures actually occur. The reserve study consists of two parts: the physical analysis and the financial anal

Finance

Resource allocation

In economics, resource allocation is the assignment of available resources to various uses. In the context of an entire economy, resources can be allocated by various means, such as markets, or planning.

Trading basics

Severance tax

Severance taxes are taxes imposed on the removal of natural resources within a taxing jurisdiction. Severance taxes are most commonly imposed in oil producing states within the United States. Resources that typically incur severance taxes when extracted include oil, natural gas, coal, uranium, and timber. Some jurisdictions use other terms like gross production tax.

Banking

Shadow banking system

The shadow banking system is the collection of non-bank financial intermediaries (NBFIs), or nondepository financial institutions (NDFIs) that legally provide services similar to traditional commercial banks but outside normal banking regulations. S&P Global estimates that, at end-2022, shadow banking held about $63 trillion in financial assets in major jurisdictions around the world, re

Finance

Służewiec

Służewiec (Polish: [swuˈʐɛ.vjɛt͡s]) is a neighbourhood, and a City Information System area, in Warsaw, Poland, within the Mokotów district. It is a mixed high-rise area with residential and office buildings, with a population estimated at around 31,000 in 2025. Together with the nearby neighbourhood of Ksawerów, its portion forms a financial district, colloquially referred to as Mordor.

Banking

Strahan, Paul & Bates

Strahan, Paul & Bates was a London private banking house founded in the 17th century and with a reputation for respectability. The bank failed in 1855 with liabilities eventually estimated at £750,000 (equivalent to £70,000,000 in 2025). The subsequent bankruptcy proceedings revealed that customers' securities had been sold or otherwise disposed of by the partners and the proceeds had be

Trading basics

Stress test (financial)

In finance, a stress test is an analysis or simulation designed to determine the ability of a given financial instrument or financial institution to deal with an economic crisis. Instead of doing financial projection on a "best estimate" basis, a company or its regulators may do stress testing where they look at how robust a financial instrument is in certain crashes, a form of scenario

Securities & exchanges

Thomas Peterffy

Thomas Peterffy (born September 30, 1944) is a Hungarian-born American billionaire businessman. He is the founder, chairman and the largest shareholder of Interactive Brokers. As of November 2025, his estimated net worth is US$109 billion, making him the 18th richest person in the world.

Trading basics

TikTok Shop

TikTok Shop is an e-commerce feature of the video hosting service TikTok. Officially launched in September 2023, the feature enables users interested in starting a business and generating income to upload their curated products on TikTok for others to discover and purchase. Daily sales averaged approximately US$7 million in October 2023.As of October 2026, it has been estimated that 54 m

Trading basics

Value at risk

Value at risk (VaR) is a measure of the risk of loss of investment/capital. It estimates how much a set of investments might lose (with a given probability), given normal market conditions, in a set time period such as a day. VaR is typically used by firms and regulators in the financial industry to gauge the amount of assets needed to cover possible losses.

Trading basics

Value-based pricing

Value-based price, also called value-optimized pricing or charging what the market will bear, is a market-driven pricing strategy which sets the price of a good or service according to its perceived or estimated value. The value that a consumer gives to a good or service, can then be defined as their willingness to pay for it (in monetary terms) or the amount of time and resources they w

Securities & exchanges

Warren Buffett

Warren Edward Buffett ( BUFF-it; born August 30, 1930) is an American investor and philanthropist who is the chairman emeritus and former CEO of the conglomerate Berkshire Hathaway. As a result of his success, Buffett is one of the best-known investors in the world. According to Forbes, as of January 2026, Buffett's estimated net worth stood at US$148.9 billion, making him the ninth-rich

Finance

Yield to maturity

The yield to maturity (YTM), book yield or redemption yield of a fixed-interest security is an estimate of the total rate of return anticipated to be earned by an investor who buys it at a given market price, holds it to maturity, and receives all interest payments and the capital redemption on schedule.