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Models describing the dynamics of opinion forming in a two-party society have been modeled and investigated numerically. And it has shown that very simple rules can lead to rather complicated dynamics. Individuals have their opinions and can change them under the influence of others.In this paper, we study the several models of opinion dynamics aiming to offer referential information for the evolution...
A buyback contract between a upstream supplier and a downstream retailer in a two stages supply chain model with downside-risk control is designed and modeled, both of whom are risk-averse, and the retailer's risk aversion structure information is uncertainty for the supplier, who only have a prior probability distribution. The supplier's optimal contracts under full information and asymmetric information...
Each year, there are kinds of new diseases or natural disasters that break out around the world. And, the emergency logistics system plays an important role in the process of fighting against these diseases and natural disasters. How to evaluate and optimize the emergency logistics system in contingencies is becoming the hot researching topic. This article establishes the set pair analysis model (SPAM)...
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