We investigate the problem of selecting a committee consisting of k members from a list of m candidates. The selection of each candidate consumes a certain weight (or cost). Hence, the choice of the k-committee has to satisfy a weight (or budget) constraint: The sum of the weights of all selected committee members must not exceed a given value W . While the former part of the problem is a typic...

Ecological trait data are essential for understanding the broad-scale distribution of biodiversity and its response to global change. For animals, diet represents a fundamental aspect of species' evolutionary adaptations, ecological and functional roles, and trophic interactions. However, the importance of diet for macroevolutionary and macroecological dynamics remains little explored, partly b...

i. Normative data from the anestrous, estrous, and post-estrous periods of females .. .275 2. The response of individual females to individual males 277 3. Behavior in the circle when females were in estrus . . . . 277 4. A comparison of present and previous mating preferences 28I 5. Behavior in the circle when females were in nonestrus 282 6. Temporal changes during estrus .. .282 7. Individua...

Background—We sought to describe the resuscitation preferences of patients hospitalized with an exacerbation of severe congestive heart failure, perceptions of those preferences by their physicians, and the stability of the preferences. Methods and Results—Of 936 patients in this study, 215 (23%) explicitly stated that they did not want to be resuscitated. Significant correlates of not wanting ...

Simple majority does not reflect the intensity of voters’ preferences. This paper presents an efficient collective choice mechanism when the choice is binary and the designer may use non-trasferable punishments to persuade agents to reveal their private information. The designer faces a dilemma – a punishment may induce a more correct choice, but its cost is socially wasteful. The efficient mec...

This paper studies the impact of negotiation slowdowns; i.e., unwanted delays; on negotiation processes and outcomes. We begin by introducing the construct of a negotiator's pacing preferences, which we suggest reflects the negotiator's hopes and desires regarding the pace at which the interaction will be resolved. Second, we introduce our comparative pace model, which proposes that the relevan...