An online auction (also electronic auction, e-auction, virtual auction, or eAuction) is an auction held over the internet and accessed by internet connected devices. Similar to in-person auctions, online auctions come in a variety of types, with different bidding and selling rules.
eCommerce sales for businesses have been steadily increasing for years, and with the migration of virtually all transactions to digital due to the COVID-19 pandemic, worldwide sales through ecommerce channels such as websites and online marketplaces increased overall in 2020 and beyond.
There are two primary markets for online auctions: business to business (B2B) and business to consumer (B2C). B2C is forecast to have over a 1% annual growth rate, achieving a nearly 22% share of total global retail sales by 2024. B2B ecommerce gross merchandise value showed a similarly steady rate through 2019, as to mirror its retail B2C counterpart.
The largest consumer-to-consumer online auction site is eBay, which researchers suggest is popular because it is a convenient, efficient, and effective method for buying and selling goods.
Despite the benefits of online auctions, the anonymity of the internet, the large market, and the ease of access makes online auction fraud easier than in traditional auctions. The Federal Trade Commission (FTC) categorizes online auction fraud reports with online shopping categories.
Online auctions originated on web forums as early as 1979 on CompuServe and The Source, as well as through email and bulletin board systems. Auctioneers and sellers would post notices describing items for sale, minimum bids, and closing times. As the popularity of online auctions grew, websites dedicated to the practice began to appear in 1995 when two auction sites were founded. The first online auction site was Onsale.com, founded by Jerry Kaplan in May 1995. Onsale's business model had the company act as the seller.
In September of 1995, eBay was founded by French-Iranian computer scientist Pierre Omidyar using a different approach to online auctions by facilitating person-to-person transactions.
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Game theory studies the strategic interactions between rational agents. It has a myriad of applications in politics, business, sports. A special branch of Game Theory, Auction Theory, has recently g
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An auction is usually a process of buying and selling goods or services by offering them up for bids, taking bids, and then selling the item to the highest bidder or buying the item from the lowest bidder. Some exceptions to this definition exist and are described in the section about different types. The branch of economic theory dealing with auction types and participants' behavior in auctions is called auction theory. The open ascending price auction is arguably the most common form of auction and has been used throughout history.
eBay Inc. (ˈiːbeɪ , often stylized as ebay) is an American multinational e-commerce company based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in 1995 and became a notable success story of the dot-com bubble. eBay is a multibillion-dollar business with operations in about 32 countries, The company manages the eBay website, an online auction and shopping website in which people and businesses buy and sell a wide variety of goods and services worldwide.
E-commerce (electronic commerce) is the activity of electronically buying or selling of products on online services or over the Internet. E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems. E-commerce is in turn driven by the technological advances of the semiconductor industry, and is the largest sector of the electronics industry.
We study a general class of repeated auctions, such as the ones found in electricity markets, as multi-agent games between the bidders. In such a repeated setting, bidders can adapt their strategies online using no-regret algorithms based on the data obser ...
2020
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We study a robust auction design problem with a minimax regret objective, where a seller seeks a mechanism for selling multiple items to multiple anonymous bidders with additive values. The seller knows that the bidders' values range over a box uncertainty ...
2020
Mechanism design theory examines the design of allocation mechanisms or incentive systems involving multiple rational but self-interested agents and plays a central role in many societally important problems in economics. In mechanism design problems, agen ...