Multiple Intermediaries Research Articles

Buyer–seller networks with demand shocks and intermediation

We present a model in which buyers and sellers use links to trade with each other. Each seller produces a good which can be one of two types. Buyers are ex ante identical but receive specification or valuation shocks after the links are formed. We show that efficient networks are stable and that severing a link in an efficient network results in a higher price for the buyer but a lower price for the seller. We also examine network intermediation when sellers (buyers) form links sequentially. When sellers form links sequentially, the first seller becomes an intermediary and shares links with other sellers; this makes all sellers better off. However, when buyers form links sequentially, buyers may or may not share links. If links are shared multiple intermediaries result.

Efficient and Secure Content Processing and Distribution by Cooperative Intermediaries

Content services such as content filtering and transcoding adapt contents to meet system requirements, display capacities, or user preferences. Data security in such a framework is an important problem and crucial for many Web applications. In this paper, we propose an approach that addresses data integrity and confidentiality in content adaptation and caching by intermediaries. Our approach permits multiple intermediaries to simultaneously perform content services on different portions of the data. Our protocol supports decentralized proxy and key management and flexible delegation of services. Our experimental results show that our approach is efficient and minimizes the amount of data transmitted across the network.

Coordinating intermediary peace efforts

Multiple peace-making efforts by intermediaries can be a blessing or a curse, particularly in ethnic, religious, or other types of communal conflicts. The author outlines four general ways in which multiple interventions can hamper peacemaking, as well as the different types of intermediaries and de-escalating activities that can help efforts to achieve conflict resolution. Multiple intermediaries can work effectively either in sequence or contemporaneously; coordination of such activities is vital. Based on the analysis presented here, the author offers four different strategies to maximize the benefits of multiple intermediaries in peacemaking.