The greater energy content of larger food portions could be contributing to the increasing prevalence of overweight. Prevention guidelines recommend "sensible" portion sizes but do not define them. The US Department of Agriculture (USDA) defines standard serving sizes for dietary guidance, and the Food and Drug Administration (FDA) defines standard servings for food labels. To use these standar...

This paper proposes a novel communication pattern for mobile multihop ad-hoc networks which is based on a marketplace metaphor. In order to substantially increase the probability that negotiating peers sucessfully reach an agreement, communication is focused on a static geographic area, called the marketplace. Users are not constrained to be at the marketplace physically, but are allowed to uti...

Traders that operate in markets with multiple competing marketplaces must often choose with which marketplace they will trade. These choices encourage marketplaces to seek competitive advantages against each other by adjusting various parameters, such as the price they charge, or how they match buyers and sellers. Traders can take advantage of this competition to improve utility. However, appro...

In 2002, libraries spent more than $530 million on library systems and related services. Among academic, public and research libraries, more than 800 either migrated to a new integrated library system (ILS) or significantly upgraded their existing one.1 (These figures include the major ILS vendors in these markets: Dynix, Endeavor Information Systems, Ex Libris, Innovative Interfaces, Sirsi, TL...

This paper considers the allocation of “shelf space” in the context of online marketplaces, where items’ positions are linked to advertising. While featuring advertised products makes search less efficient, lowering transaction commissions, it incentivizes sellers to compete for better placements via advertising. We consider this trade-off by modeling both sides of the platform. On the demand s...

This paper proposes a framework for demand estimation with data on bids, bidders’ identities, and auction covariates from a sequence of eBay auctions. First the aspect of bidding in a marketplace environment is developed. Form the simple dynamic auction model with IPV and private bidding costs it follows that if participation is optimal the bidder searches with a ”reservation bid” for low-price...

Intermediaries can choose between functioning as a marketplace (on which suppliers sell their products directly to buyers) or as a reseller (purchasing products from suppliers and selling them to buyers). We model this as a decision between whether control rights over a non-contractible decision variable (the choice of some marketing activity) are better held by suppliers (the marketplacemode) ...

Publishing and consuming structured data on the Web is becoming more and more common across domains as varied as the public sector, the media, cultural institutions, the manufacturing industry or retailers. Kasabi, an online data market based on linked data principles, offers data publishers an easy way to publish, link and monetise data, while giving developers of data-centric applications acc...

Pasar elektronik (e-marketplace) memberikan paradigma baru bagi setiap organisasi bisnis dalam mengelola usahanya, termasuk UMKM pangan. Identifikasi perubahan yang diperlukan pada traditional marketing mix (4P) menjadi kebutuhan untuk membangun model sesuai relationship di e-marketplace. Penelitian ini bertujuan mengetahui pengaruh e-marketing (product, price, place, promotion) terhadap tingka...