Dynamic pricing algorithms allow online businesses or box stores with electronic price tags to change prices in real time based on supply, demand, time, location, and competitor prices.

Smart pricing algorithms can unintentionally work together to raise prices

Researchers have found that, through trial and error, algorithms designed to adjust prices based on market data can learn to mimic price-fixing tactics, even without explicit programming to do so. Over time, they "learn" that it is more profitable to avoid price wars and keep prices high when competitors lower prices.

Read about different levels of price discrimination

Price discrimination is a business practice in which different customers are charged different prices for the same product or service. It's one way for a business to boost profits and take advantage of its market position. There are three levels of price discrimination, differentiated by the consumers targeted and the reasons for discrimination.

Technological advancements are historically deflationary

Technological innovation can drive down costs and prices for businesses, which can increase real wages for employees. As a result, people have more money to spend and demand increases.

Regular coupon users pay less attention to the actual price of what they’re buying

The psychology of coupon users can feel counterintuitive: Research suggests regular coupon users actually prioritize coupon availability over actual price comparisons.

What something costs is reflective of a balance in the market determined by the amount of demand relative to the supply of goods and services

Because economies are complex systems, a wide variety of issues influence this balance—including some things generally considered to be positive, like rising wages.

Dollar stores often place staple items at the back of the store

This forces customers to encounter other, less-necessary items on their way there, leading to impulse buys. This video explains other ways that dollar stores make money while selling extremely cheap products, keeping dollar store profit margins relatively high.

Amazon operates a 'flywheel' business model

Central to any understanding of the multifaceted nature of Amazon's business today is the concept of the "flywheel" at the heart of the company. Put simply, it's an idea that refers to a self-reinforcing cycle that drives the continuous growth of Amazon's various businesses, including its retail arm, its Prime subscription service, and more.

Compare grocery prices with this cost radar

Track the price of key grocery items with this price radar tool, which shows real-time prices across major retailers in the US and Canada. Select bread, milk, eggs, and more to see differences in cost by location and store, including Wal-Mart, Kroger, Amazon, and Target.

All-you-can-eat buffets are a practical demonstration of economic ideas

Economists have noticed some restaurant goers prefer a flat pricing model despite it usually being more expensive than per-dish costs. The strategy behind endless servings includes concepts such as economy of scale, cross-subsidization, diminishing returns (of enjoyment of excess food), and more.

Online Black Friday shoppers spent over 10% more in 2024 than they did in 2023

Online shoppers shelled out some $11.3M per minute between 10 am and 2 pm on Black Friday 2024, according to Adobe Analytics data. The $10.8B online shoppers spent on Black Friday 2024 was more than double the amount they spent online in 2017.

A technological breakthrough altered how Billboard determined what was popular

Before 1991, retail stores manually reported sales to Billboard, which then used those figures as part of its calculations for its weekly charts. In 1991, the magazine began using Nielsen SoundScan, a technology that tracked every unit sold in participating stores, providing a more accurate picture of what consumers were actually buying.

A breakdown of algorithms, how they are constructed, and their applications

Algorithms are instructions for accomplishing a goal and typically take the form of a step-by-step procedure. Given the conditions, these procedures can take various paths, increasing an algorithm's complexity. While traditional computer algorithms are programmed to account for all possible scenarios within a given process, machine learning systems build their own rules from data-driven patterns.

Machine learning lets computers learn from data instead of relying on programming

ML is a core part of artificial intelligence and is foundational to applications like chatbots, fraud detection, and self-driving cars. Businesses are also adopting it to improve efficiency and identify patterns in data, though the latter may be inaccurate.

Simulate the effects of changing supply and demand on the electric grid

In this application, users can modify the demand of fictional cities and the supply of various generators, including a nuclear power plant and a wind farm, which can be disconnected from the grid. Notice that current may flow into or out of external systems to compensate for available generation. See what it takes to cause a blackout in different cities or shut down the entire grid.

Why Google Search's ranking system combines filters, signals, and machine learning layers

Rather than static rankings, dynamic tools continually shift search results in real time. These include Twiddlers, which adjust ranking positions based on document traits and search context, and FreshnessNode, which reshuffles top results to prioritize timely informational content.

The way dating apps make money is changing

As downloads fall across the industry, dating apps are trying to stay competitive by adding paywalls to their business models. The more than $6B dating app industry is largely dominated by Match Group, the parent company of both Tinder and Hinge. This video explores how AI and human behavior are changing the industry one right swipe at a time.

Electronic trading transformed investing, ushering in a new era for retail investors in which average Americans could research stocks online and then use early platforms like StreetSmart and E-Trade to conduct their transactions

In the early 1990s, stock brokerages knew that online trading would be a great equalizer, creating opportunities for more individuals to buy and sell stocks.

How disruptions in oil markets can drive up the price of everyday goods

Most types of plastic are made from polymers derived from chemicals produced by the processing and refining of crude oil and natural gas. Spikes in the cost of either fossil fuel raise the cost of wrappings, tubs, and other plastic containers for products.

Marketers often use psychological tactics to sway consumer action

From making someone feel as though a resource is scarce (“only one item left in stock!”) to invoking a sense of authority (“top dentists recommend this toothpaste”), marketers use a variety of psychological tactics to elicit a desired response from their target audience.

Watch Ray Dalio explain how the economy works

Dalio describes the economy as a machine that runs on three main cycles: productivity growth, the short-term debt cycle, and the long-term debt cycle. Dalio says layering these three cycles on top of each other essentially creates a template for understanding changes in the economy.

The 'dupe' economy is fueled by the youthful thrill of thrift

Historically, you don't want people to know you have a knock-off luxury item. But today's younger generations are embracing the "dupe" economy, an open celebration of luxury knock-off items where consumers are proud to pay less for something roughly equivalent to premium brand offerings.

How prediction markets differ from sportsbooks matters for regulation

There are a number of differences and similarities between sportsbooks and prediction markets, despite both allowing people to bet on outcomes for sports-related events. For instance, prediction markets typically earn revenue through transaction fees rather than taking directional exposure to outcomes.

Today's massive data centers evolved from single-room mainframes

Punch card computers from the late 1940s were used to store and process a company's data locally before the advent of desktop computers. As the amount of data and company sizes increased alongside the miniaturization of technology, mainframes were replaced by local server rooms and external facilities with interconnected servers running cloud-based and AI software.

'Floating rate' loans periodically adjust their interest rates in accordance with economic conditions

When the Federal Reserve began raising interest rates in 2022 to combat inflation, interest payments borrowers owed to private credit lenders increased accordingly. Private credit funds benefited as loan returns increased, making the asset class attractive to investors at the time.

Traffic flow can be improved through research into card shuffling

Card-shuffling mathematics has been applied to solving problems in biology to estimate the evolutionary distance between organisms and in computer science to determine the optimal distribution of files and folders in databases.

What is buy now, pay later?

The buy now, pay later industry allows consumers to buy something immediately and pay in installments, typically without the need for applications or credit scores associated with credit cards. BNPL has boomed in the last decade, led by fintech companies Affirm, Klarna, and Afterpay, which have targeted young adults. Some critics say BNPL is a reinvented version of payday loans that allow borrowers easy access to cash with relatively few barriers.

What are repurchasing agreements?

Repurchasing agreements are short-term trade agreements in which a dealer sells securities and agrees to repurchase them at a higher price soon after (often within 1 to 2 days). This gives dealers quick access to cash and allows the purchasing party, often the Federal Reserve, to control liquidity in securities. This can be used to alter the money supply, which is a key element in combating deflation.

In the 1960s, eateries started using discounted drinks (and sometimes food) as a marketing tactic to make money during off-peak hours

Today, we know happy hours as a time where bars and restaurants offer discounted alcoholic beverages (and sometimes even food or non-alcoholic drinks) in order to attract customers during off-peak hours. But originally, the term “happy hour” didn’t involve alcohol at all.

Emergency room evaluations may be improved with AI algorithms

Emergency room care teams must make fast and crucial decisions. They must determine if patients need to be admitted or discharged and when to order more tests or not. Researchers have been exploring how often patients died in the week after they were sent home and evaluating how this and other aspects of emergency care decision-making could be improved with AI algorithms to assist decision-makers.

In defense of the advertisement economy

Advertising is frequently reviled for how it clutters up public spaces and our everyday experiences. Nonetheless, it allows for vast amounts of goods and services to be rendered free to millions of users—and gives users the option to pay with money or time and attention.

Check the real-time price of bitcoin

Bitcoin has gone through several boom and bust cycles. Those peaks and valleys sit on top of a steadily rising value, growing as the currency gains wider adoption. As of 2024, bitcoin’s total market value was over $1.3T, with more than 19.6 million coins in circulation. Still, the value fluctuates.

Merchants have to pay credit card transaction fees each time a card is swiped

Credit card networks such as Visa, Mastercard, and American Express must calculate fees for not only the customer, but also the merchant in every transaction.

Marketplaces on the dark web provide eBay-like vendor feedback scores

An HP analysis found that 77% of cybercriminal marketplaces require vendors to purchase a license to sell their products, which can cost up to $3,000. About 92% of these marketplaces also use a third-party dispute-resolution service to handle customer service issues, thereby promoting "honor among thieves."

Calculate creator economy platform costs

The creator economy continues to be an attractive way to earn money for many people. While many platforms exist to help creators monetize their work, each has different feature sets and pricing models. This calculator helps workers decide which platform works best for them.

Book building is widely considered the most efficient way to price securities

During the book-building process, bankers determine an IPO’s price per share, requesting bids from fund managers and other institutional investors for the number of shares they want and how much they’d be willing to pay for them.

Nike made retailers pay for Air Jordans upfront to guarantee stock

Instead of paying for the inventory sold, Knight locked retailers into iron-clad agreements, where the companies would pay upfront for Nike inventory (but at a 7% discount). Knight did this to leverage debt, allowing retailers a better chance at getting the wildly popular Air Jordans.

Active investors try to 'beat' the stock market's performance

There are two primary types of investment strategies that professional investors use: active investing and passive investing. While active investors try to "beat" the stock market's performance, passive investors have a bit more faith in the system.

Is Domino’s pizza inflation-proof?

A Big Mac Extra Value Meal is nearly $11 in 2025, compared to $4.59 in 1993. A Taco Bell crunchy taco costs $1.79 today, but was only 59 cents in 1990. Inflation impacts the price of many fast-food items—but the price of a Domino's pizza hasn't changed much at all in the past two decades.

Check the current Consumer Price Index

The Consumer Price Index is a metric that attempts to capture price changes felt by consumers by averaging a basket of about 80,000 items, each weighted to reflect the impact of changes on households.

Paper coupon suppliers and major newspaper insert distributors are in decline

Given the uptick in digital coupon adoption, sellers who offered coupon inserts or individual coupons for sale online have been closing up shop in recent years.

See the news with AI-generated data visualizations

Realtime uses generative AI to create immediate data visualizations of news items on its regularly-updated feed, pulling from public data feeds. Peruse stories around sports, economics, politics, and more with the helpful aid of charts and graphs. See the shape of the news with this clever AI tool here.

Palantir's technology is part of a larger shift in modern warfare

As warfare becomes increasingly technical, Palantir executives say artificial intelligence is going to revolutionize how military leaders in war zones make decisions. They argue that this shift towards "algorithmic warfare," or the integration of large technological enhancements like AI, will enable militaries to be more powerful and make fewer mistakes.

Over-the-air updates, pioneered by Tesla, have become the industry standard

Tesla's innovative direct-to-consumer sales model and online ordering system changed car-buying, and the Model S, which had a 200-mile range, forced other automakers to enhance their EV offerings and rethink vehicle design.

The different types of stablecoins include algorithmic stablecoins

In addition to fiat-backed stablecoins, commodity-backed stablecoins, and cryptocurrency-backed stablecoins, algorithmic stablecoins use smart contract-based mechanisms to maintain a stable value by responding to supply and demand.

Ads follow you around the internet through technology called 'cookies.'

A technology called "cookies" enables advertisers to essentially team up and follow your behavior around on the internet. This video explains why it seems like ads seem to follow you as you go from website to website—as well as data privacy advocates' war against cookies.

Malware has transitioned from notoriety-driven to profit- and data-driven

Many of the first researchers and hobbyists who created viruses and worms showed a natural curiosity in experimenting with and designing such software to make a name for themselves and advance the field of computer science. In the future, AI-augmented malware may adapt in real-time or design enhanced cryptojackers, infostealers, and ransomware for cybercriminals.

Prediction market Kalshi's cofounders are former Wall Street traders

Kalshi's CEO Tarek Mansour ​​has described prediction markets as similar to the stock market—except instead of buying and selling shares of companies, users buy and sell "yes" or "no" on whether an event is going to happen or not.

How congestion pricing is trying to fix downtowns

Billions of gallons of gas are wasted each year as US drivers sit in traffic losing billions of hours of time. The congestion problems big downtowns face has led to innovative interventions to try to stop the traffic, including congestion pricing, a...

The Dow’s price-weighted formula makes stock price matter more than size

Unlike most indices, which weigh companies by market value, the DJIA is price-weighted—meaning higher-priced stocks have more influence on its movements. As a result, a company’s share price matters more than its overall size.

Companies sometimes decide to change which stock exchange they're listed on

A company can be asked to delist from a stock exchange by the exchange itself. In some cases, like when Shopify moved from the NYSE to the Nasdaq in 2025, the switch is made partly because the company wants to be seen as more or less of a tech company.