2,233 research outputs found
New developments in frontier models for objective assessments
No full textThis dissertation is the result of some innovative proposals, in the wide framework of production efficiency frontier models, that have the common goal of reducing subjective choices of the researcher by using, as far as possible, objective methods.
In particular, the first proposal links the economic efficiency theory to the spatial econometrics with the aim of taking into account - in the efficiency evaluation of a productive unit - the neighborhood effects in a global way avoiding the subjective selection of a set of variables identifying territorial effects. The method called Spatial Stochastic Frontier Analysis (SSFA) has been published in Fusco and Vidoli (2013) for the production efficiency analysis and generalized in this thesis to be able to also analyze the cost efficiency.
The second proposal, instead aims to introduce enhancements in the methods using frontier techniques to aggregate simple indicators in a composite indicator. Subjectivity is avoided in the identification of the set of aggregation weights necessary for constructing the composite indicator, in the definition of a preference structure among simple indicators and in the extreme values and outliers influence
removal. The two methods proposed, called respectively Directional Benefit of the Doubt (D-BoD) and Robust Directional Benefit of the Doubt (RD-BoD), have been published in Fusco (2015) and Vidoli, Fusco and Mazziotta (2015). The dissertation consists of four parts: the first one introduces the foundations of the economic efficiency analysis and gives key economic concepts and definitions needed for a proper understanding of the following parts, focusing both on parametric and on nonparametric methods for cross-sectional and panel data and for mono-output and multi-output production processes; the second one discusses the fundamentals of the spatial econometrics, on the main connection proposals with the efficiency theory and shows in detail the SSFA method and the related R package called SSFA implemented to allow other researchers to use it; in the third part the concept of composite indicator and the required steps for its construction are discussed and D-BoD and RD-BoD are shown, moreover the related R package Compind is presented; all proposed methods have been tested both on simulated data and on real
data and the results are shown in the fourth part. In the last part, two innovative applications, respectively on the estimation of non performing loans of commercial banks (Fusco and Maggi, 2016) and on the estimation of the local governments’ expenditure needs (Vidoli and Fusco, 2017) by using the efficiency and spatial theories, are also included
Fusco et al. Appendices_ Paleobiology 2016
No full textSupplementary information for Fusco et al. paper
IX Seminario della Scuola di Dottorato in Archeologia Sapienza, Università di Roma
No full textIX Seminario della Scuola di Dottorato in Archeologia Sapienza, Università di Roma / Abbondanzieri, Elisa; Briatico, Giuseppe; Di Matteo, Martina; Fusco, Marianna; Giovino, Noemi; Petrini, Mattia; Pizzuti, Elisa; Previti, Giulia; Vilmercati, Melissa - (2022). (Intervento presentato al convegno IX Seminario della Scuola di Dottorato in Archeologia tenutosi presso l'Aula di Archeologia del Museo dell'Arte Classica e online - piattaforma Google Meet nel 15-16 febbraio 2022
Give Up Art: Collected Critical Writings
No full textGive Up Art is a collection of critical writings by author Maria Fusco. Operating across fiction, criticism, and theory, Fusco’s work forges a contemporary space for critical art writing internationally. Give Up Art brings together nearly two dozen essays, reviews, and smaller pieces published between 2002 and 2017
Study and cataloging of the collection of bats of the Zoological Museum of the University of Padova
No full textopenLando Francesco
Studio e catalogazione della collezione dei chirotteri del Museo Zoologico dell'Università di Padova
Biologia
Fusco Giuseppe
Le finalità della tesi è relativa alla catalogazione e ad approfondimenti del materiale incluso nella collezione di chirotteri del Museo Zoologico dell'Università di Padova. Si è fatto uso dell'esperienza pratica e del materiale fornito durante il tirocinio, viene fatto uso anche di materiale bibliografico
How many processes are responsible for phenotypic evolution?
No full textIn addressing phenotypic evolution, this article re-considers natural selection, random drift, developmental constraints and internal selection in the new extended context of evolutionary developmental biology. The change of perspective from the ‘evolution of phenotypes’ towards an ‘evolution of ontogenies’ (evo-devo perspective) affects the reciprocal relationships among these different processes.
Random drift and natural selection are sibling processes: two forms of post-productional sorting among alternative developmental trajectories, random the former, non-random the latter. Developmental constraint is a compound concept; it contains even some forms of natural (‘external’ and ‘internal’) selection. A narrower definition (‘reproductive constraints’) is proposed. Internal selection is not a selection caused by an internal agent. It is a form of environment-independent selection depending on the level of the organism’s internal developmental or functional coordination.
Selection and constraints are the main deterministic processes in phenotypic evolution but they are not opposing forces. Indeed they are continuously interacting processes of evolutionary change, but with different roles that should not be confused
Hunting for 'factor X': the genetic basis of segmental mismatch.
No full textDefending an evo-devo approach to the study of evolution in
the pages of this journal may appear to be an unnecessary
exercise. However, there are some case studies which, better
than others, illustrate the necessity and the potential of considering
developmental causes for explaining the evolution of
organisms’ body architecture. An example involving the evolution
of segmentation in arthropods is the recent study by
Janssen et al. (2008)
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