1,721,020 research outputs found
I presidenti della Repubblica e i presidenti del Consiglio in Italia dal dopoguerra ad oggi
No full textIl volume presenta le biografie dei presidenti della Repubblica e del Consiglio che si sono succeduti dal 1945 al 1992
Pre-trade transparency and trade size
No full textWe analyse how Pre-Trade Transparency (PTT) affects the behaviour of different stock traders. To do so, we exploit a natural experiment, that is the PTT change in the equity segment of Italian Stock Exchange (ISE) which occurred in July 2007, with the aim of reducing information asymmetries between individuals and intermediaries/institutional investors. We specify a dynamic empirical model for trade size and estimate it on a large panel of tick-by-tick data. Results suggest that increased transparency affects the dynamic trade pattern emerging from interacting strategic decisions of different traders. In addition, the contribution of the order flow disclosure both in reducing the adverse selection component of the bid–ask spread, and in weakening the sensitiveness to risk of the trade size also emerges. Overall, PTT enhancement should reduce the informative disequilibrium among market participants and improve the quality of the market.
Abbiamo analizzato come la Trasparenza Prima degli Scambi (TPS) influenzi il comportamento di diversi operatori di Borsa. Per lo scopo, abbiamo valorizzato un esperimento naturale avvenuto presso il mercato azioniario italiano nel luglio 2007, quando le autorità di Borsa hanno cambiato il regime di TPS, riducendo le asimmetrie informative che esistevano tra investitori individuali e investitori istituzionali/intermediari. Abbiamo sviluppato un modello dinamico per la dimensione dei contratti e lo abbiamo stimato su un panel di dati tick by tick (ovvero al secondo). I risultati suggeriscono che l’incremento di trasparenza è in grado di cambiare l’interazione dinamica che si attiva tra i diversi operatori di Borsa, motivati da esigenze strategiche differenti. In aggiunta, rileviamo che una maggiore trasparenza del flusso degli ordini è in grado di ridurre la componente del bid-ask spread dovuta alla selezione avversa, e di frenare la reattività delle dimensioni dei contratti rispetto alla volatilità dei titoli. Nel complesso, l’intensificazione della TPS sembrerebbe essere in grado di ridurre i disequilibri informativi presenti fra i diversi operatori di Borsa e di migliorare la qualità del mercato
Entry strategies into China: The choice between Joint Ventures and Wholly Foreign-Owned Enterprises. An application to the Italian manufacturing sector
No full textPre-trade trasparency on the Italian Stock Exchange: a trade size model on panel data
No full textWorking Paper Series, Dipartimento di Scienze Economiche, Università di Bologn
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
Max Weber e l'identità europea
No full textUno studio dell'opera di Max Weber (soprattutto i Saggi sulla sociologia della religione) e sul suo contributo alla interpretazione dell'identità della società europea moderna.An essay on Max Weber work (manly the Essays on Sociology of Religion) and its contribute to the interpretation of European modernity
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