1,721,269 research outputs found
Il progetto I.S.S.: attuazione di un metodo didattico per il superamento delle difficoltà in Matematica
No full textpubblicato in propri
profilo di personalità di un campione di 621 soggetti sottoposti a valutazione psichiatrica e psicodiagnostica ai fini dell'idoneità alla guida di autoveicoli dopo la sospensione della patente di guida
No full textStudio epidemiologico di un campione di 796 soggetti sottoposti a valutaziione psichiatrica e psicodiagnostica ai fini dlel'idoneità alla guida di autoveicoli dopo la sospensione della patente di guida
No full textEquilibria in networks
No full textWe study a model in which two carriers choose networks to connect cities and compete for travelling customers. We show that if carriers compete aggressively (e.g., Bertrand-like behavior), one carrier operating a single hub-spoke network is an equilibrium outcome. Competing hub-spoke networks are not an equilibrium outcome, although duopoly equilibria in non-hub networks can exist. If carriers do not compete aggressively, a duopoly equilibrium in hub-spoke networks exists if the number of cities is not small. We provide conditions under which all equilibria consist of hub-spoke networks
On the equivalence of simultaneous and sequential binary elections
No full textWe explore sequential voting in symmetric two-option environments. We show that the (informative) symmetric equilibria of the simultaneous voting game are also equilibria in any sequential voting structure. In unanimity games, (essentially) the whole set of equilibria is the same in all sequential structures. We also explore the relationship between simultaneous and sequential voting in other contexts. We illustrate several instances where sequential voting does no better at aggregating information than simultaneous voting. The inability of the sequential structure to use additional information in voting models is distinct from that in the herd-cascade literature
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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