Market competition may lead to mismatch between supply and demand. That is, overpricing may give rise to underselling, and underpricing may yield stockout. Capacity sharing is a common practice to align excessive capacity with excessive demand. Yet the strategic interaction between competition and capacity sharing has not been adequately addressed. In this paper we investigate optimal strategie...

This paper reports on an experiment testing whether a particular repre sentation of robotic control processes is adequate for capturing signi cant variations in robot behavior These variations can then be explored by a selectionist mechanism that generates and tests variations An ecosystem modeled after a physical robotic ecosystem is introduced The ecosystem contains a robot that occasionally ...

Crawford and Haller (1990) describe a repeated two-player coordination game defined by the absence of a common language. Coordination is achieved only through path dependent play relying on time consistent labels. We consider a game played by a large population similarly looking to coordinate but without the consistency in labels over time and with asymmetric coordinated payoff so that players ...

A Web-based message board or forum is an online area where discussions are held by many Internet users on a variety of subjects. More recently, online social networks have been created for various purposes: job searching, dating, band promotion, etc. Many social networking sites have also incorporated community discussion features such as message boards. Rather than add a message board to a soc...

Interspecific competition is an important evolutionary force, influencing interactions between species and shaping the composition of biological communities. In mammalian carnivores, to reduce risks negative encounters competitors, can employ a strategy temporal partitioning, adapting activity patterns limit synchronous activity. This non-human competitor avoidance, however, may be influenced b...

The skin microbiome is a complex ecosystem with important implications for cutaneous health and disease. Topical antibiotics and antiseptics are often employed to preserve the balance of this population and inhibit colonization by more pathogenic bacteria. However, despite their widespread use, the impact of these interventions on broader microbial communities remains poorly understood. Here, w...

Ecologists have long observed that consumers can maintain species diversity in communities of their prey. Many theories of how consumers mediate diversity invoke a tradeoff between species' competitive ability and their ability to withstand predation. Under this constraint, the best competitors are also most susceptible to consumers, preventing them from excluding other species. However, empiri...