1,721,122 research outputs found
Corporate governance codes: a review and research agenda
Full text linkManuscript Type: Review Research Question/Issue: This study reviews previous country-level and firm-level studies on corporate governance codes up to 2014 in order to highlight recent trends and indicate future avenues of research. Research Findings/Results: Our data show that research on codes increases over time consistently with the diffusion and the relevance of the empirical phenomenon. Despite previous studies have substantially enriched our knowledge of the antecedents and the consequences of governance codes, our study shows there are still several opportunities for making significant contributions in this area. Theoretical Implications: Agency theory is the dominant theoretical framework, although other theoretical perspectives (especially the institutional one) are increasingly adopted. Future studies should be aimed at widening and combining various theoretical lenses so as to develop new interpretations and a better understanding of governance codes. Practical Implications: Legislators and policy makers should continue to develop and update the recommendations of national governance codes in order to address the potential failures of corporate governance mechanisms in place
An evolutionary overview of the ownership, governance and strategy of Mediobanca:From the kingmaker of Italian capitalism to a large financial conglomerate
No full textThe chapter presents the history of Mediobanca from its birth to today. This history is particularly interesting for several reasons. First, Mediobanca has for a long time been the dominant player of the national investment banking industry thanks to its links with the three largest Italian commercial banks. Furthermore, Mediobanca has played a key role in the development of the national economic system by both favouring the stability of control and supporting the growth of large national private industrial groups. Finally, the history of Mediobanca is strictly intertwined with the personality and the vision of Enrico Cuccia, one of the most influential and admired bankers of its time
MANTRA: a multi-appliance transformer for Non-Intrusive Load Monitoring
No full textNon-Intrusive Load Monitoring (NILM) enables the estimation of individual appliances' energy footprints from the total household consumption without the cost and complexity of installing a specific smart meter per device. By providing users with real-time feedback on their energy consumption, NILM is known to foster conservation habits.
The widespread diffusion of smart home meters has enabled the unprecedented availability of a vast amount of consumption data observed at short intervals, posing an urgent need for designing deep learning models that can capture insightful long-range dependencies and overcome the computational cost of training and fine-tuning the same neural network for each device one at a time, as currently performed by single-appliance solutions for NILM.
To cope with these challenges, we propose a sequence-to-sequence Multi-AppliaNce TRAnsformer (MANTRA) model that extracts long-term information and simultaneously estimates individual appliance powers, providing a scalable solution for NILM in real-world settings.
Experiments on several time resolutions prove the robustness of MANTRA for multi-target energy disaggregation over other deep learning methods
Institutional Change and Ownership Patterns in Italy
No full textLiterature indicates that institutional changes in corporate governance systems can lead to a radical transformation of the ownership structure. Starting from this premise, in this chapter we explore the Italian case as the large increase of investors’ rights and the massive privatizations experienced in the last two decades did not seem to affect significantly the stability of the ownership structure of large listed companies. The chapter shows that while concentrated and family ownership remained relatively stable, the large privatization process and the increase in investors’ rights contributed respectively to decrease state ownership, the use of control enhancing mechanisms and the separation between ownership and control rights. The evidence collected shows that the study of ownership structures is still very intriguing and open to several interpretations
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Application priority framework for fixed mobile converged communication networks
Full text linkThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The current prospects in wired and wireless access networks, it is becoming increasingly important to address potential convergence in order to offer integrated broadband services. These systems will need to offer higher data transmission capacities and long battery life, which is the catalyst for an everincreasing variety of air interface technologies targeting local area to wide area connectivity. Current integrated industrial networks do not offer application aware context delivery and enhanced services for optimised networks. Application aware services provide value-added functionality to business applications by capturing, integrating, and consolidating intelligence about users and their endpoint devices from various points in the network. This thesis mainly intends to resolve the issues related to ubiquitous application aware service, fair allocation of radio access, reduced energy consumption and improved capacity. A technique that measures and evaluates the data rate demand to reduce application response time and queuing delay for multi radio interfaces is proposed. The technique overcomes the challenges of network integration, requiring no user intervention, saving battery life and selecting the radio access connection for the application requested by the end user. This study is split in two parts. The first contribution identifies some constraints of the services towards the application layer in terms of e.g. data rate and signal strength. The objectives are achieved by application controlled handover (ACH) mechanism in order to maintain acceptable data rate for real-time application services. It also looks into the impact of the radio link on the application and identifies elements and parameters like wireless link quality and handover that will influence the application type. It also identifies some enhanced traditional mechanisms such as distance controlled multihop and mesh topology required in order to support energy efficient multimedia applications. The second contribution unfolds an intelligent application priority assignment mechanism (IAPAM) for medical applications using wireless sensor networks. IAPAM proposes and evaluates a technique based on prioritising multiple virtual queues for the critical nature of medical data to improve instant transmission. Various mobility patterns (directed, controlled and random waypoint) has been investigated and compared by simulating IAPAM enabled mobile BWSN. The following topics have been studied, modelled, simulated and discussed in this thesis: 1. Application Controlled Handover (ACH) for multi radios over fibre 2. Power Controlled Scheme for mesh multi radios over fibre using ACH 3. IAPAM for Biomedical Wireless Sensor Networks (BWSN) and impact of mobility over IAPAM enabled BWSN. Extensive simulation studies are performed to analyze and to evaluate the proposed techniques. Simulation results demonstrate significant improvements in multi radios over fibre performance in terms of application response delay and power consumption by upto 75% and 15 % respectively, reduction in traffic loss by upto 53% and reduction in delay for real time application by more than 25% in some cases
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
L'impatto della tutela legale degli azionisti sull'assetto proprietario delle imprese. Un'analisi longitudinale sulle imprese italiane quotate.
No full textIl lavoro si pone l’obiettivo di analizzare gli effetti dell’evoluzione
del grado di tutela degli azionisti sull’assetto proprietario
delle imprese quotate alla Borsa di Milano appartenenti
a tutti i settori (escluso il credito, le assicurazioni e
i servizi finanziari) a distanza di 10 anni nel periodo compreso
tra il 1985 e il 2005. Il caso italiano è particolarmente
interessante in quanto i ) il nostro paese presenta le
principali caratteristiche dei paesi di civil law: bassa tutela
degli azionisti, alta concentrazione azionaria, separazione
tra proprietà e controllo, alti benefici privati del controllo
[La Porta et al. 1997; 1998; 1999; Zattoni 1999; Zingales
1994]; ii ) il legislatore italiano ha emanato – a partire
dalla fine degli anni Novanta – numerose riforme volte ad
aumentare la tutela legale degli azionisti [Enriques e Volpin
2007; Mengoli, Pazzaglia e Sapienza 2007]
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