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In finance, moneyness is the relative position of the current price (or future price) of an underlying asset (e.g., a stock) with respect to the strike price of a derivative, most commonly a call option or a put option. Moneyness is firstly a three-fold classification:

The Monroney sticker or window sticker is a label required in the United States to be displayed in all new automobiles. It includes the listing of certain official information about the car. The window sticker was named after Almer Stillwell "Mike" Monroney, a United States Senator from Oklahoma who sponsored the bill that resulted in the label mandate.

In mathematical finance, a Monte Carlo option model uses Monte Carlo methods to calculate the value of an option with multiple sources of uncertainty or with complicated features. The first application to option pricing was by Phelim Boyle in 1977 (for European options). In 1996, M. Broadie and P. Glasserman showed how to price Asian options by Monte Carlo. An important development was

Morningstar, Inc. is an American financial services firm headquartered in Chicago, Illinois, founded by Joe Mansueto in 1984. It provides an array of investment research and investment management services.

Mortgage Electronic Registration Systems, Inc. (MERS) is an American privately held corporation. MERS is a separate and distinct corporation that serves as a nominee on mortgages after the turn of the century and is owned by holding company MERSCORP Holdings, Inc., which owns and operates an electronic registry known as the MERS system, which is designed to track servicing rights and own

In the United States, a mortgage note (also known as a real estate lien note or borrower's note) is a promissory note secured by a specified mortgage loan.

Mortgage underwriting is the process a lender uses to determine if the risk (especially the risk that the borrower will default

The Moscow Interbank Currency Exchange (Russian: Московская межбанковская валютная биржа) or MICEX (Russian: ММВБ) was a stock exchange that operated in Russia from 1992 to 2011. MICEX was the leading Russian stock exchange and one of the largest universal stock exchanges in Eastern Europe. It merged with the Russian Trading System in 2011, creating Moscow Exchange.

Most valuable customers is a marketing term referring to the customers who are the most profitable for a company. These customers buy more or higher-value products as the average customer. The company provide these customers with advice and guidance to establish a more personal relationship.

Muamalat (also muʿāmalāt, Arabic: معاملات, literally "transactions" or "dealings") is a part of Islamic jurisprudence, or fiqh. Muamalat has been defined as Islamic "rulings governing commercial transactions",

Multi-level marketing (MLM), also called network marketing or pyramid selling, is a controversial and sometimes illegal marketing strategy for the sale of products or services in which the revenue of the MLM company is derived from a non-salaried workforce selling the company's products or services, while the earnings of the participants are derived from a binary compensation commission

A multi-manager fund is an investment product that consists of multiple specialized funds. Each specialized fund may invest across different sectors and markets, or in the same asset class but have different investment styles. For example, large cap value fund versus large cap growth fund.

The Multilateral Agreement on Investment (MAI) was a draft agreement negotiated in secret between members of the Organisation for Economic Co-operation and Development (OECD) between 1995 and 1998. It sought to establish a new body of universal investment laws that would grant corporations unconditional rights to engage in financial operations around the world, without any regard to nati

The Multilateral Investment Guarantee Agency (MIGA) is an international financial institution which offers political risk insurance and credit enhancement guarantees. These guarantees help investors protect foreign direct investments against political and non-commercial risks in developing countries. MIGA is a member of the World Bank Group and is headquartered in Washington, D.C. in the

Murābaḥa (Arabic: مرابحة, derived from ribh Arabic: ربح, meaning profit) was originally a term of fiqh (Islamic jurisprudence) for a sales contract where the buyer and seller agree on the markup (profit) or "cost-plus" price for the item(s) being sold. In recent decades it has become a term for a very common form of Islamic (i.e., "shariah-compliant") financing, where the price is marked

In portfolio theory, a mutual fund separation theorem, mutual fund theorem, or separation theorem is a theorem stating that, under certain conditions, any investor's optimal portfolio can be constructed by holding each of certain mutual funds in appropriate ratios, where the number of mutual funds is smaller than the number of individual assets in the portfolio. Here a mutual fund refer

The Myanmar Investment Commission (Burmese: မြန်မာနိုင်ငံ ရင်းနှီးမြှုပ်နှံမှု ကော်မရှင်, abbreviated MIC) is a government-appointed body formerly under the Ministry of Investment and Foreign Economic Relations that appraises domestic investment proposals in Myanmar (Burma). The Myanmar Investment Commission is now under the Ministry of National Planning, Investment and Foreign Economic

Mystery shopping is a market research method in which a researcher poses as a customer, prospect or user to observe and report on the quality of a sales, service, compliance or customer-experience process, or on job performance. It may be used to assess a company’s own operations, competitors’ operations, or market practices more broadly. The Market Research Society adds that mystery sho

A naked option or uncovered option is an options strategy where the options contract writer (i.e., the seller) does not hold the underlying asset to cover the contract in case of assignment (like in a covered option). Nor does the seller hold any option of the same class on the same underlying asset that could protect against potential losses (like in an options spread). A naked option i

Naming rights are a form of advertising or memorialization where a corporation, person, or other entity purchases the right to name a facility, object, location, program, or event (most often sports venues), typically for an agreed time. The term typically ranges from three to 20 years for properties such as multi-purpose arenas, performing arts venues, or sports fields. Longer terms are

The National Competitiveness Report of Armenia (ACR) is an annual publication of EV Consulting and the Economy and Values Research Center (a partner institute of the World Economic Forum's Global Competitiveness Network) that aims to encourage and foster in-depth dialogue and analysis on improving Armenia's competitiveness.

The National Infrastructure and Service Transformation Authority (NISTA), established in April 2025, is a public agency advising the UK Government on infrastructure delivery and improvement. A joint unit of HM Treasury and the Cabinet Office, it combines the functions of the former National Infrastructure Commission and the Infrastructure and Projects Authority.

The National Treasury is one of the departments of the South African government. The Treasury manages national economic policy, prepares the South African government's annual budget and manages the government's finances.

Native advertising, also called sponsored content, partner content, and branded journalism, is a type of paid advertising that appears in the style and format of the content near the advertisement's placement. It manifests as a post, image, video, article or editorial piece of content. In some cases, it functions like an advertorial. The word native refers to the coherence of the content

Negative equity is a deficit of owner's equity, occurring when the value of an asset used to secure a loan is less than the outstanding balance on the loan. In the United States, assets (particularly real estate, whose loans are mortgages) with negative equity are often referred to as being "underwater", and loans and borrowers with negative equity are said to be "upside down".

Negative gearing is a financial leverage strategy whereby an investor borrows money to acquire an income-producing investment, knowing that the gross income generated by the investment (at least in the short term) will be less than the cost of owning and managing the investment, including depreciation and interest charged on the loan (but excluding capital repayments).

Neil Wallace (born 1939) is an American economist and professor of economics at Penn State University. He is considered one of the main proponents of new classical macroeconomics in the field of economics.

Net volatility refers to the volatility implied by the price of an option spread trade involving two or more options. Essentially, it is the volatility at which the theoretical value of the spread trade matches the price quoted in the market, or, in other words, the implied volatility of the spread.

Neuromarketing is a commercial marketing communication field that applies neuropsychology to market research, studying consumers' sensorimotor, cognitive, and affective responses to marketing stimuli. The potential benefits to marketers include more efficient and effective marketing campaigns and strategies, fewer product and campaign failures, and ultimately the manipulation of the real

Neutrality of money is the idea that a change in the money supply affects only nominal variables in the economy such as prices, wages, and exchange rates, with no effect on real variables, like employment, real GDP, and real consumption. Neutrality of money is an important idea in classical economics and is related to the classical dichotomy. It implies that the central bank does not aff

In the United States, the term Nifty Fifty was an informal designation for a group of roughly fifty large-cap stocks on the New York Stock Exchange in the 1960s and 1970s that were widely regarded as solid buy and hold growth stocks, or "blue-chip" stocks. These fifty stocks are credited by historians with propelling the bull market of the early 1970s, while their subsequent crash and un

The video game developer and publisher Nintendo has engaged in a variety of marketing campaigns, ranging from early efforts to appeal to teenagers with "Play It Loud!" to the more open-ended "Who Are You?" campaign. Nintendo also sometimes markets its various consoles and games with lavish promotions.

Nintendo of America Inc. v. U.S. Department of the Treasury, et al. is a pending legal case filed by Nintendo of America against multiple agencies and officials of the U.S. federal government on March 6, 2026. The complaint was filed in the United States Court of International Trade, seeking a "prompt refund, with interest" of tariffs paid under executive orders issued by President Donal

In commercial real estate leases in the United States, the tenant, rather than the landlord, is usually responsible for real estate taxes, maintenance, and insurance. In a "net lease", in addition to base rent, the tenant or lessee is responsible for paying some or all of the recoverable expenses related to real-estate ownership. As the rent collected under a net lease is "net" after exp

In finance and economics, the nominal interest rate or nominal rate of interest is the rate of interest stated on a loan or investment, without any adjustments for inflation.

Nonrecourse debt or a nonrecourse loan (sometimes hyphenated as non-recourse) is a secured loan (debt) that is secured by a pledge of collateral, typically real property, but for which the borrower is not personally liable. If the borrower defaults, the lender can seize and sell the collateral, but if the collateral sells for less than the debt, the lender cannot seek that deficiency ba

NZX is the national stock exchange of New Zealand and, as NZX Limited, is also a publicly owned company listed on the exchange it operates. NZX is the parent company of Smartshares and Wealth Technologies.

Occupy Homes or Occupy Our Homes is part of the Occupy movement which attempts to prevent the foreclosure of people's homes. Protesters delay foreclosures by camping out on the foreclosed property. They also stage protests at the banks responsible for the ongoing foreclosure crisis, sometimes blocking their entrances. It has been compared to the direct action taken by people to prevent h

The official cash rate (OCR) is the term used in Australia and New Zealand for the bank rate and is the rate of interest which the central bank charges on overnight loans between commercial banks. This allows the Reserve Bank of Australia and the Reserve Bank of New Zealand to adjust the interest rates that apply in each country's economy. The OCR cannot be changed by transactions betwee

Offshore investment is the keeping of money in a jurisdiction other than one's country of residence. Offshore jurisdictions are used to pay less tax in many countries by large and small-scale investors. Poorly regulated offshore domiciles have served historically as havens for tax evasion, money laundering, or to conceal or protect illegally acquired money from law enforcement in the inv

On-hold messaging is a service used by businesses and organizations to deliver information to their callers waiting on hold or while they are being transferred. Also called audio marketing, on-hold messaging is a specialist area of marketing and branding.

Operational database management systems (also referred to as OLTP databases or online transaction processing databases), are used to update data in real-time. These types of databases allow users to do more than simply view archived data. Operational databases allow you to modify that data (add, change or delete data), doing it in real-time. OLTP databases provide transactions as main ab

Opinion leadership is leadership by an active media user who interprets the meaning of media messages or content for lower-end media users. Typically opinion leaders are held in high esteem by those who accept their opinions. Opinion leadership comes from the theory of two-step flow of communication propounded by Paul Lazarsfeld and Elihu Katz. Significant developers of the opinion leade

In mathematics, the theory of optimal stopping or early stopping is concerned with the problem of choosing a time to take a particular action, in order to maximise an expected reward or minimise an expected cost. Optimal stopping problems can be found in areas of statistics, economics, and mathematical finance (related to the pricing of American options). A key example of an optimal stop

In financial markets, an option naming convention is a method of identifying which of many possible options is being quoted or traded.

In finance, the style or family of an option is the class into which the option falls, usually defined by the dates on which the option may be exercised. The vast majority of options are either European or American (style) options. These options—as well as others where the payoff is calculated similarly—are referred to as "vanilla options". Options where the payoff is calculated differe

In finance, the time value (TV) (extrinsic or instrumental value) of an option is the premium a rational investor would pay over its current exercise value (intrinsic value), based on the probability it will increase in value before expiry. For an American option this value is always greater than zero in a fair market, thus an option is always worth more than its current exercise value.

Option strategies are the simultaneous, and often mixed, buying or selling of one or more options that differ in one or more of the options' variables. Call options, simply known as Calls, give the buyer a right to buy a particular stock at that option's strike price. Opposite to that are Put options, simply known as Puts, which give the buyer the right to sell a particular stock at the

Organizational economics (also referred to as economics of organization) involves the use of economic logic and methods to understand the existence, nature, design, and performance of organizations, especially managed ones.

Original sin is a term in economics literature, proposed by Barry Eichengreen, Ricardo Hausmann, and Ugo Panizza in a series of papers to refer to a situation in which "most countries are not able to borrow abroad in their domestic currency."

The Osborne effect is a social phenomenon of customers canceling or deferring orders for the current, soon-to-be-obsolete product as an unexpected drawback of a company's announcing a future product prematurely. It is an example of cannibalization. The term alludes to the Osborne Computer Corporation, whose second product did not become available until more than a year after it was annou

An overnight indexed swap (OIS) is an interest rate swap (IRS) over some given term, e.g. 10Y, where the periodic fixed payments are tied to a given fixed rate while the periodic floating payments are tied to a floating rate calculated from a daily compounded overnight rate over the floating coupon period. The OIS term is not overnight; it is the underlying reference rate that is an over

The Overseas Investment Amendment Act 2018 is a New Zealand bill that amends the Overseas Investment Act 2005 to ban most non-resident foreigners from buying existing houses, by classifying them as sensitive land and introducing a residency test. Australian citizens are exempt from this rule as they are considered New Zealand residents per the Trans-Tasman Travel Arrangement. Singaporean

In November 2008, Munaf Kalia (CEO of Khanani and Kalia International (Pvt.) Ltd.), Yusuf Kalia, and associates, were charged with illegally transferring funds from Pakistan to Afghanistan. In light of the charges, the State Bank of Pakistan revoked the license for Khanani and Kalia International to operate its foreign exchange business and shut down its offices.

Palo is a memory resident multidimensional (online analytical processing (OLAP) or multidimensional online analytical processing (MOLAP)) database server and typically used as a business intelligence tool for controlling and budgeting purposes with spreadsheet software acting as the user interface. Beyond the multidimensional data concept, Palo enables multiple users to share one central

The Pan-European Pension Product (PEPP) or Pan-European Personal Pension Product is a proposed pension which will be available to residents of the European Union. The PEPP is designed to give the 240 million savers in the EU a better choice in the fragmented and uneven European market, where options are nearly non-existent in some member states. PEPPs are regulated by the Regulation 2019

Panic buying (alternatively hyphenated as panic-buying; also known as panic purchasing) occurs when consumers buy unusually large amounts of a product in anticipation of, or after, a disaster or perceived disaster, or in anticipation of a large price increase or shortage.

Panic selling is a large-scale selling of an investment that causes a sharp decline in prices. Specifically, an investor wants to sell an investment with little regard to the price obtained. The sale is problematic because the investor is reacting to emotion and fear, rather than evaluating the fundamentals.

Passive income is a type of unearned income that is acquired with little to no labor to earn or maintain. It is often combined with another source of income, such as regular employment or a side job. Passive income, as an acquired or earned income, is typically taxable.

Patch Media operates Patch.com, an American local news and information platform, based in Manhattan. It is primarily owned by Hale Global. Patch is operated by Planck, LLC, doing business as Patch Media.

A patent medicine (sometimes called a proprietary medicine) is a non-prescription medicine or medicinal preparation that is typically protected and advertised by a trademark and trade name, and – often falsely – claimed to be effective against minor disorders and symptoms, as opposed to a prescription drug that could be obtained only through a pharmacist, usually with a doctor's prescrip

Patient recruitment is the process of finding and enrolling suitable participants for clinical trials. It is a crucial aspect of drug development and medical research, as it affects the validity, reliability, and generalizability of the results. Patient recruitment can also be challenging, time-consuming, and costly, involving various ethical, regulatory, and logistical issues.

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

A pawnbroker is an individual who offers secured loans to people by taking items of personal property as collateral. A pawnbrokering entity is called a pawnshop or pawnbrokerage. While many items can be pawned, pawnshops typically accept jewelry, musical instruments, coins, gold, silver and firearms. Home-audio equipment, computers, video-game systems, televisions, cameras, and power t

Pay-per-sale or PPS (sometimes referred to as cost-per-sale or CPS) is an online advertisement pricing system where the publisher or website owner is paid on the basis of the number of sales that are directly generated by an advertisement. It is a variant of the CPA (cost per action) model, where the advertiser pays the publisher and/or website owner in proportion to the number of action

A paywall is a method of restricting access to content, with a purchase or a paid subscription, especially news. Beginning in the mid-2010s, newspapers started implementing paywalls on their websites as a way to increase revenue after years of decline in paid print readership and advertising revenue, partly due to the use of ad blockers. In academics, research papers are often subject to

Payzone is an Irish consumer payment service provider company based in Dublin. The company processes electronic transactions, including debit and credit card transactions mobile phone top ups, M50 motorway toll payments, Leap travel cards, local property tax payments, pay-by-phone parking, pre-paid and bill pay utility and parcel collection services.

PEAK6 Investments LLC (Peak6) is an American financial services company headquartered in Austin, Texas. Originally dealing in options proprietary trading, it has expanded into other businesses most notably investment management and fintech.

Penetration pricing is a pricing strategy especially appropriate for new product pricing, where the price of a product is initially set low to rapidly reach a wide fraction of the market and initiate word of mouth promotion. The strategy works on the expectation that customers will switch to the new brand because of the lower price. Penetration pricing is most commonly associated with ma

In finance, perpetual futures, also known as perpetual swaps or colloquially as perps, are contract agreements to non-optionally buy or sell an asset at an unspecified point in the future. Perpetual futures are cash-settled, and they differ from regular futures in that they lack a pre-specified delivery date and can thus be held indefinitely without the need to roll over contracts as the

Pershing Square Capital Management (Pershing Square) is an American hedge fund based in New York City. It specializes in activist investments, using influence over company management through the purchase of shares and by exerting pressure on management. Pershing Square was founded on January 1, 2004, by Bill Ackman, a hedge fund manager who was a co-founder of the investment firm Gotham

The Personal Property Security Act ("PPSA") is the name given to each of the statutes passed by all common law provinces, as well as the territories, of Canada that regulate the creation and registration of security interests in all personal property within their respective jurisdictions.

The Pfandbrief (plural: Pfandbriefe), a mostly triple-A rated German bank debenture, has become the blueprint of many covered bond models in Europe and beyond. The Pfandbrief is collateralized by long-term assets such as property mortgages or public sector loans as stipulated in the Pfandbrief Act. Total volume outstanding in Pfandbriefe was EUR 806 billion as at end-2008. Pfandbrief bon

A photo agency is a business that represents and contracts independent photographers in supplying news outlets and print and screen publications. They are agents for the photographer. Increasingly in the twenty-first century, with the proliferation of digitisation and of imagery from digital devices, aside from their main business, photo agencies may also provide stock images from their

Pin risk occurs when the market price of the underlier of an option contract at the time of the contract's expiration is close to the option's strike price. In this situation, the underlier is said to have pinned. The risk to the writer (seller) of the option is that they cannot predict with certainty whether the option will be exercised or not. So the writer cannot hedge their position

A platform cooperative, or platform co-op, is a cooperatively owned, democratically governed business that establishes a two-sided market via a computing platform, website, mobile app or a protocol to facilitate the sale of goods and services. Platform cooperatives are an alternative to venture capital-funded platforms insofar as they are owned and governed by those who depend on them mo

The point of sale (POS), or point of purchase (POP), is the time and place at which a retail transaction is completed. At the point of sale, the merchant calculates the amount owed by the customer, indicates that amount, may prepare an invoice for the customer (which may be a cash register printout), and indicates the options for the customer to make payment. It is also the point at wh

A point-of-sale display (POS display) is a specialised form of sales promotion that is found near, on, or next to a checkout counter (the "point of sale"). They are intended to draw the customers' attention to products, which may be new products, or on special offer, and are also used to promote special events, e.g. seasonal or holiday-time sales. POS displays can include free standing d

The Policy Analysis Market (PAM), part of the FutureMAP project, was a proposed futures exchange developed, beginning in May 2001, by the Information Awareness Office (IAO) of the United States Defense Advanced Research Projects Agency (DARPA), and based on an idea first proposed by Net Exchange, a San Diego, California, research firm specializing in the development of online prediction

In early August 2025, Pakistan's Defence Minister Khawaja Asif made claims that over half of the country's senior bureaucrats had purchased properties in Portugal and were arranging to obtain European (Portuguese) citizenship using illicit wealth. He alleged that these officials accumulated vast sums, "billions of rupees", through corrupt practices during their tenure, enabling them to r

In marketing, positioning is the mental perception of a product or brand by customers. Brand and product positioning methods include product differentiation, advertising, market segmentation, and business models such as the marketing mix.

In response to shifts in consumer behavior and conditions brought on by postmodernism, many companies changed their marketing approach to address and create more nimble, immersive experience and customer engagements. Postmodern branding are practices of personifying a brand based on a core set of traits. Postmodern branding behaviors understand and leverage technology, space, and mindset

Postmodern marketing is a term derived from postmodern philosophical movements where there are cultural tendencies of inherent suspicion towards a global cultural narrative or meta-narrative. Postmodern marketing takes this same philosophical perspective and applies it to the way advertising initiatives are handled in the current post-World War II era. Postmodern marketing is approachi

A power purchase agreement (PPA), or electricity power agreement, is a long-term contract between an electricity generator and a customer, usually a utility, government or company. PPAs may last anywhere between 5 and 20 years, during which time the power purchaser buys energy at a pre-negotiated price. Such agreements play a key role in the financing of independently owned (i.e. not own

A dual-currency note (DC) pays coupons in the investor's domestic currency with the notional in the issuer's domestic currency. A reverse dual-currency note (RDC) is a note which pays a foreign interest rate in the investor's domestic currency. A power reverse dual-currency note (PRDC) is a structured product where an investor is seeking a better return and a borrower a lower rate by tak

Precision marketing is a marketing technique that suggests successful marketing is to retain, cross-sell, and upsell existing customers.

The Prefecture for the Economic Affairs of the Holy See was a dicastery of the Roman Curia, erected on 15 August 1967, and entrusted with overseeing all the offices of the Holy See that managed finances, regardless of their degree of autonomy.

Preferred stock (also called preferred shares, preference shares, or simply preferreds) is a component of share capital that may have any combination of features not possessed by common stock, including properties of both an equity and a debt instrument, and is generally considered a hybrid instrument. Preferred stocks are senior (i.e., higher ranking) to common stock but subordinate to

In marketing, premiums are promotional items — toys, collectables, souvenirs and household products — that are linked to a product, and often require proofs of purchase such as box tops or tokens to acquire. The consumer generally has to pay at least the shipping and handling costs to receive the premium. Premiums are sometimes referred to as prizes, although historically the word "prize

Presales is a process or a set of activities/sales normally carried out before a customer is acquired, though sometimes presales also extends into the period the product or service is delivered to the customer.

In economics, a price system is a system through which the valuations of any forms of property (tangible or intangible) are determined. All societies use price systems in the allocation and exchange of resources as a consequence of scarcity. Even in a barter system with no money, price systems are still utilized in the determination of exchange ratios (relative valuations) between the pr

Pricing is the process whereby a business sets and displays the price at which it will sell its products and services and may be part of the business's marketing plan. In setting prices, the business will take into account the price at which it could acquire the goods, the manufacturing cost, the marketplace, competition, market condition, brand, and quality of the product.

Private equity real estate is a term used in investment finance to refer to a specific subset of the real estate investment asset class. Private equity real estate refers to one of the four quadrants of the real estate capital markets, which include private equity, private debt, public equity and public debt.

Prizes are promotional items—small toys, games, trading cards, collectables, and other small items of nominal value, found in packages of brand-name retail products. These items are generally included in the price of the product, and are included with the intent to boost sales, similar to toys in kid's meals. Collectable prizes produced (and sometimes numbered) in series are used extensi

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.

In marketing, product category volume (PCV) is the weighted measure of distribution based on store sales within the product category. PCV is a refinement of all commodity volume (ACV). It examines the share of the relevant product category sold by stores in which a given product has gained distribution.

In marketing, a product demonstration (or "demo" for short) is a promotion where a product is demonstrated to potential customers. The goal is to introduce customers to the product in hopes of getting them to purchase that item.

In economics, strategic management and marketing, product differentiation (or simply "differentiation") is the process of distinguishing a product or service from others to make it more attractive to a particular target market. This involves differentiating it from competitors' products as well as from a firm's other products. The concept was proposed by Edward Chamberlin in his 1933 boo

A product line extension is the use of an established product brand name for a new item in the same product category.

In marketing jargon, product lining refers to the offering of several related products for individual sale. Unlike product bundling, where several products are combined into one group, which is then offered for sale as a units, product lining involves offering the products for sale separately. A line can comprise related products of various sizes, types, colors, qualities, or prices. Li