Herve Tanguy

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Between market unraveling and individual reputation building, markets for experience goods often exhibit intermediate patterns. This paper explores the situation in which consumers know the average quality offered by a set of producers, but not the quality of one given product. A first issue is how such an aggregate signal shapes competition when strategic(More)
Active control of ship roll is necessary for operability of an important number of ships. As such it has been strongly developed in the past twenty years. Taking into account the variations of the environment is a means of improving performances. The ship behaviour is modeled as a MIMO LPV system; a methodology is presented which leads to a gain-scheduled(More)
Taking into account the variations of the environment of ships is a means of improving performances of roll stabilisation systems; this can be done through the use of gain-scheduling (GS) control law. In this study, a GS-control law is obtained by interpolation of fixed HP controllers which have been synthetized for different sailing conditions of the ship(More)
We have developed an agent-based computational model, extension of an analytical model that studies the structure of coalitions of B-to-C web sites, when Internet buyers incur search costs for finding the good that matches their preferences, and coalitions of sites reduce this cost through specialized search engines. This multiagent model consists of(More)
This paper presents a new method, in an underwater context, of estimating the trajectory of a target assumed to be in constant velocity motion. The observer system is composed of a transmitter (emitting continuously, said also in high duty cycle mode) and a set of passive underwater acoustic sensors (e.g. receiving sonobuoys) not necessarily collocated with(More)
We develop a model of the monopsonistic organization of a ferrous scrap recycling branch. Negative externalities in the collection activity and information asymmetries on scrap quality are the distinctive features of the branch. After shedding light on the gold rush problem the interplay between the collection externalities and the price of the good we(More)
We study the forces that drive the phenomenon of aggregation of merchant Web sites (B-toC) competing in a differentiated electronic market, where the search cost for the consumers is independent from the adaptation/transportation cost they incur when the good they find does not match with their preference. We focus on the possibility for Internet sites to(More)
We study the forces that drive the phenomenon of aggregation of merchant Web sites (B-toC) competing in a differentiated electronic market, where the search cost for the consumers is independent from the adaptation/transportation cost they incur when the good they find does not match with their preference. We focus on the possibility for Internet sites to(More)