We analyze how environmental taxes should be optimally levied in a sequential game which regulators and firms face costs uncertainties. First, the regulator chooses intensity of emissions to reduce externalities. Then, facing common private information with noisy signals, compete marketplace choose outputs. show that, under nonuniform quality signals across firms, may calibrate differentiated t...

In this paper, a method of extracting rules with immune algorithms from information systems is proposed. Designing an immune algorithm is based on a sharing mechanism to extract rules. The principle of sharing and competing resources in the sharing mechanism is consistent with the relationship of sharing and rivalry among rules. In order to extract rules efficiently, a new concept of flexible c...

extended abstractintroductiontoday is the world of information and its optimal uses (davies, 2003). information, doubtless, as the most important tools for managers and executive decision-makerscan play a significant role in solving the problems and meeting the needs (warnest, 2005). spatial data are discussed as one of the most sensitive and important factors in decision-making and planning in...

This paper introduces a new motivation for information sharing in decentralized supply chains—as a mechanism to achieve truthful information sharing and to reduce signaling costs. We study a twoechelon supply chain with one manufacturer selling a homogenous product to n price-setting competing retailers. Each retailer has access to private information about the potential market demand, and the ...

True integration of large systems requires sharing of information stored in databases beyond sharing of pure data: business rules associated with this data must be shared also. This research focuses on providing a mechanism for defining, storing and sharing business rules across different information systems, in an area where existing technologies are weak. In this paper, we present the pre-int...

True integration of large systems requires sharing of information stored in databases beyond sharing of pure data: business rules associated with this data must be shared also. This research focuses on providing a mechanism for defining, storing and sharing business rules across different information systems, in an area where existing technologies are weak. In this paper, we present the pre-int...