With the rapid development of Web 2.0 and the rise of online social networks, finding community structures from user data has become a hot topic in network analysis. Although research achievements are numerous at present, most of these achievements cannot be adopted in large-scale social...

We study transferable utility games with limited cooperation between the agents. The focus is on communication structures where the set of agents forms a circle, so that the possibilities of cooperation are represented by the connected sets of nodes of an undirected circular graph. Agents are...

Mathematical models describing water resources systems optimization are characterized by a large number of variables and constraints, which are needed to describe the physical components of the system, its functional ties, and its operating modalities. Some special algebraic structures allow its...

We study cooperative games with transferable utility and limited cooperation possibilities. The focus is on communication structures where the set of players forms a circle, so that the possibilities of cooperation are represented by the connected sets of nodes of an undirected circular graph....

We analyze self-selection problem when valuations are non-ordered. The corresponding package-pricing solution has specific graph structure. It is helpful in deriving weak su±cient conditions for both partial e±ciency and Pareto-e±ciency. Unlike the ordered valuations case, Pareto e±ciency is...

We study cooperative games with communication structure, represented by an undirected graph. Players in the game are able to cooperate only if they can form a network in the graph. A single-valued solution, the average tree solution, is proposed for this class of games. Given the graph structure...

This discussion paper resulted in a publication in 'Games and Economic Behavior', 2010, 68, 626-633. <P> We study cooperative games with communication structure, represented by an undirected graph. Players in the game are able to cooperate only if they can form a network in the graph. A...</p>

The emergence of the Internet brought changes to traditional Word-of-Mouth Communication (WOM). Consumers are able to share and exchange opinions with anyone in the world, while WOM has customarily resulted from face-to-face relationships (Huang & Chen, 2006). Online portals allow individuals to...

While hotels come up with various discount strategies to attract consumers, especially during a recession, both hotels and consumers seem to favor dynamic pricing. Previous studies also indicated that price discounts give consumers not only monetary benefits but also positive emotional...

I have always been interested in all aspects of the fashion industry, from apparel production to retail sales. After interning in the sales department of a New York based designer, I became fascinated by the customers who spent over $10,000 to revamp their wardrobe every season. Were these women...