A seller has an object for sale and can reach buyers only through intermediaries, who also have privileged information about buyers’ valuations. Intermediaries can either mediate the transaction by buying the object and reselling it–the merchant model– or refer buyers to the seller and release information for a fee–the agency model. The merchant model suffers from double marginalization and the...

We analyze a market in which sellers compete for heterogeneous buyers by posting mechanisms. A general meeting technology governs how buyers and sellers meet. We introduce a one-to-one transformation of this meeting technology that helps to clarify and extend many of the existing results in the literature, which has focused on two special cases: urn-ball and bilateral meetings. We show that the...

A class of efficient mechanisms for allocating a divisible good is studied, which is more general than simple mechanisms discovered independently by Maheswaran and Başar and by us. Strategic buyers play a game by submitting one-dimensional bids, or signals, to the seller. The seller allocates the good in proportion to the bids and charges the buyers nonuniform prices according to the mechanism....

INTRODUCTION Misinterpretation of intrusive thoughts because of obsessive beliefs has been thought to be important in the development of obsessive compulsive symptoms. In current study, (I) the difference between OCD patients and healthy controls in regard of obsessive beliefs and (II) the relation of obsesive beliefs with the prevelance and severity of obsessive compulsive symptoms was investi...

BACKGROUND Several psychological sequelae have been identified in civilian war survivors. However, little is known about the prevalence of obsessive-compulsive symptoms and their relationship to trauma in this population. METHOD Fifty-one adult civilian survivors of the Kosovo War (28 males) who had immigrated to Switzerland completed the Revised Obsessive-Compulsive Inventory Scale, the Post...

OBJECTIVE Compulsive hoarding and saving symptoms, found in many patients with obsessive-compulsive disorder (OCD), are part of a discrete clinical syndrome that includes indecisiveness, disorganization, perfectionism, procrastination, and avoidance and has been associated with poor response to medications and cognitive behavior therapy. The authors sought to identify cerebral metabolic pattern...

BACKGROUND The aim of the current study was to contribute to the development of a clinical profile of compulsive exercise in adolescents with Anorexia Nervosa (AN), by examining associations between compulsive exercise and eating and general psychopathology. METHOD A sample of 60 female adolescent inpatients with AN completed a self-report measure of compulsive exercise and a series of standa...

Buyers often search across multiple retailers or websites to learn which product best fits their needs. We study how sellers manage these search incentives through their disclosure policies (e.g. advertisements, product trials and reviews), and ask how competition affects information provision. If sellers can observe the beliefs of buyers (e.g. they can track buyers via their cookies) then, in ...

We explain why buyers in the housing market use an agent employed by the seller. Such agents reduce buyers' search costs so that more buyers search a particular house. This increases the probability of the sale of the house and possibly also its selling price. However, since the selling price increases, if at all, by less than the fee paid by the seller to the agent, both buyers and sellers are...

background and aim: one of the common problems in people with obsessive-compulsive disorder and substance abuse is emotion regulation difficult. the aim of this study was to compare emotion regulation strategies in people with obsessive-compulsive disorder, substance abuse and normal people. materials and methods: this study was conducted with historical cohort method. 40 patients with ocd, 40 ...