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Finance

20,000 Colombian peso note

The 20,000 Colombian peso note ($20,000) is one of the notes in circulation in Colombia. It is about 143 × 66 millimeters and the predominant color is orange. The front features former Colombian president Alfonso López Michelsen and a sugar apple, while the reverse shows a sombrero vueltiao and the canals of La Mojana. The first series of 20,000 peso notes was issued from 1996 to 2016. T

Trading basics

Elliott wave principle

The Elliott wave principle, or Elliott wave theory, is a form of technical analysis that helps financial traders analyze market cycles and forecast market trends by identifying extremes in investor psychology and price levels, such as highs and lows, by looking for patterns in prices. Ralph Nelson Elliott (1871–1948), an American accountant, developed a model for the underlying social pr

Trading basics

Federated Learning of Cohorts

Federated Learning of Cohorts (FLoC) is a type of web tracking. It groups people into "cohorts" based on their browsing history for the purpose of interest-based advertising. FLoC was being developed as a part of Google's Privacy Sandbox initiative, which includes several other advertising-related technologies with bird-themed names. Despite "federated learning" in the name, FLoC does no

Trading basics

Google bombing

Google bombing, also known as Google washing, is the practice of causing a website to rank highly in web search engine results for irrelevant, unrelated or off-topic search terms. It is in contrast of search engine optimization (SEO), which is the practice of improving the search engine listings of web pages for relevant search terms.

Payments & settlement

Google Checkout

Google Checkout was an online payment processing service provided by Google aimed at simplifying the process of paying for online purchases. The web checkout service was combined with the NFC mobile payments app launched in September of 2011 called Google Wallet under a platform brand of the same name. On November 20, 2013, the web checkout part of the service was fully retired.

Payments & settlement

Google Pay (payment method)

Google Pay (formerly Android Pay) is a mobile payment service developed by Google to power in-app, online, and in-person contactless purchases on mobile devices, enabling users to make payments with Android phones or Wear OS watches, in addition to only online & in-app purchases on Android tablets and Android/ChromeOS laptops. Users can authenticate via a PIN, passcode, or biometrics suc

Payments & settlement

Google Pay Send

Google Pay Send, previously known as Google Wallet, was a peer-to-peer payments service developed by Google before its merger into Google Pay. It allowed people to send and receive money from a mobile device or desktop computer.

Payments & settlement

Google Wallet

Google Wallet (or simply Wallet) is a digital wallet platform developed by Google. It is available for the Android, Wear OS, and Fitbit OS operating systems, and was announced on May 11, 2022, at the 2022 Google I/O keynote. It began rolling out on Android smartphones on July 18, 2022.

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

Finance

Mathematical finance

Mathematical finance, also known as quantitative finance and financial mathematics, is a field of applied mathematics, concerned with mathematical modeling in the financial field.

Trading basics

Social media mining

Social media mining is the process of obtaining data from user-generated content on social media in order to extract actionable patterns, form conclusions about users, and act upon the information. Mining supports targeting advertising to users or academic research. The term is an analogy to the process of mining for minerals. Mining companies sift through raw ore to find the valuable mi

Payments & settlement

Softcard

JVL Ventures, LLC d/b/a Softcard (formerly Isis Mobile Wallet), was a joint venture between AT&T, T-Mobile and Verizon which produced a mobile payments platform known as Softcard, which used near-field communication (NFC) technology to allow users to pay for items at stores and restaurants with credit and debit card credentials stored on their smartphones. The partnership was first annou

Finance

Stochastic calculus

Stochastic calculus is a branch of mathematics that operates on stochastic processes. It allows a consistent theory of integration to be defined for integrals of stochastic processes with respect to stochastic processes. This field was created and started by the Japanese mathematician Kiyosi Itô during World War II.

Payments & settlement

Tez (software)

Tez was a mobile payments service by Google, targeted at users in India, later folded into the new Google Pay app on 28 August 2018. It operated atop the Unified Payments Interface, developed by the National Payments Corporation of India. The product was created as part of Google's Next Billion Users initiative led by Caesar Sengupta, former vice president and general manager, Payments &