OBJECTIVE This study is an interventional evaluation of a post-offer employment testing. The study is designed to determine if shoulder injury rates are lowered when employees are placed at jobs they demonstrate the physical ability to perform. METHODS A physical capacity evaluation based testing protocol was utilized to determine if each new employee had the physical work capacity to perform...

We study a call center model with a postponed callback option. A customer at the head of the queuewhose elapsedwaiting time achieves a given threshold receives a voice message mentioning the option to be called back later. This callback option differs from the traditional ones found in the literature where the callback offer is given at customer’s arrival.We approximate this system by a two-dim...

Traditionally, Internet has offered multimedia services independently of the services offered by companies associated to Telco (companies that traditionally offer telephony and associated services). In the last years, the technical community has assumed that the convergence of both worlds is a fact; however, there are many barriers to be removed. On one hand the emergence of cloud computing tec...

A monopolist can offer free samples or free returns to let consumers try his product. When the cost of offering free trials is negligible, the standard theory (Milgrom 1981, Grossman 1981) predicts unraveling: the monopolist always offers them to reveal his product’s quality. I show that when products differ in vertical quality and a horizontal attribute, unraveling may not occur. When consumer...

T he N oha ElGanzouri/M elissa Peters ticket an d th e D eb o rah Sheedy/Angela McNulty ticket sh are many of the sam e goals for the upcoming year but hold d iffe ren t ideas reg a rd in g the im plem entation of these goals, a c c o rd in g to S tu d e n t Body President candidate Sheedy. These goals include increas­ ing s tu d e n t in v o lv e m e n t a t campus wide events, expanding servi...

In the matching with contracts setting, we provide two new axiomatic characterizations of the “cumulative offer process” (COP ) in the domain of hospital choices satisfying “unilateral substitutes” and “irrelevance of rejected contracts.” We say that a mechanism is truncationproof if no doctor can ever benefit from truncating his preferences. Our first result shows that the COP is the unique st...

Myasthenia gravis is a prototypical antibody-mediated autoimmune neuromuscular disorder. Treatments have improved over the past 30 years, leading to significantly fewer deaths and better quality of life. Future research should further elucidate its pathogenesis, reveal better ways to diagnose it, and yield new treatments.