This paper considers the single machine scheduling problem with precedence constraints and deteriorating jobs. A mathematical model based on binary integer programming (BIP) is developed. By these precedence constraints, jobs can not start before completion of its all predecessors. The represented model is in two steps, in step one the earliest starting time of each job is computed, then the re...

In online shopping buyers do not have enough information about sellers and cannot inspect the products before purchasing them. To help buyers find reliable sellers, online marketplaces deploy Trust and Reputation Management (TRM) systems. These systems aggregate buyers feedback about the sellers they have interacted with and about the products they have purchased, to inform users within the mar...

Buyers are typically unaware of the full set of offers when making a purchase. This paper examines how international trade interacts with this problem of incomplete information. Sellers must communicate their offers through costly price posting, but cannot reach all buyers. Consequently, no market clearing price exists, and sellers randomize over an equilibrium price distribution. Letting selle...

In the explosive growth of Business to Business (B2B) Electronic Trades, electronic markets have received a great deal of attention recently. The obtained profit of trading in E-B2B market encourage market participants to remain in the market. Market participants consist of: sellers, buyers, and market owner. In this paper the expected profit function for each market participant has been define...

This paper describes the equilibrium price function generated by brokers in a market in which heterogeneous buyers meet heterogeneous sellers through a matching process with frictions. The equilibrium price function relates the price to alternative ratios of buyers and sellers offered by different brokers. The paper shows how brokers can enter a matching market and charge fees that yield a prof...

We consider a seller who faces several buyers and lacks access to an institution to credibly close a sale. If buyers anticipate that the seller may negotiate further, they will prefer to wait before making their best and final offers. This in turn induces the seller to bargain at length with buyers, even if doing so is costly. When the seller’s cost of soliciting another round of offers is eith...

In the real estate business, it is a common understanding that the value and the potential value of a property are fundamentally determined by its location. This emphasises the importance of spatial factor in decision making in real estate. A geographical information system (GIS) is undoubtedly useful in this aspect. This paper reports the development of a prototype real estate GIS (REGIS) by i...

In this paper, we present a new economics-based poweraware protocol, called the distributed economic subcontracting protocol, that dynamically distributes task computation among mobile devices in an ad-hoc wireless network. Mobile computation devices may be energy buyers, contractors, or subcontractors. Tasks are transferred between devices via distributed bargaining and transactions. When addi...

We consider a model of directed search where the sellers are allowed to post mechanisms with entry fees. Regardless of the number of buyers and sellers, the sellers are able to extract all the surplus of the buyers by introducing entry fees and making price schedules positively sloped in the number of buyers arriving to their shops. This is in contrast to results that are achieved for large mar...

Despite many success stories, B2B e-commerce penetration remains low. Many firms introduce electronic channels in addition to their traditional sales channels, but find that buyer usage of the e-channel over time does not keep up with initial expectations. Firms must understand the underlying factors that drive channel usage and how these factors change over time and across buyers. Using panel ...