1,721,385 research outputs found
La variabile tempo nella trasformazione: emergenza e fragilità
Full text linkIl tema della durata all'interno dei processi di riqualificazione degli edifici industriali e dei piani di emergenza, argomenti del fascicolo di Territorio. La variabile tempo deve entrare nei processi di ridisegno di edifici e territori fragili
Sede Pirelli 2020
No full textLe vicende della Torre Pirelli dalla sua pubblicazione sul libro di Roberto Aloi fino ad oggi.The events about the Pirelli Tower from its publication on the book of Roberto Aloi to the today situation
The Linear Element. The Relationship between Tradition and Design in the Architecture of Liu Yuyang
No full textLiu Yuyang and his recent works: about a new generation of architects in Shanghai which is showing to Western architectural culture its own international language that has roots in local tradition
Casa e torre Rasini. Milano, 1933-1934, con Emilio Lancia
No full textDescrizione e lettura del frammento urbano di casa e torre per i fratelli Rasini, all'incrocio tra Corso Venezia e i Bastioni di Porta Venezia, disegnato da Gio Ponti tra il 1933 e il 1934, uno dei primi grattacieli di Milano. Le indicazioni moderne del progettista e il rinnovamento del gusto borghese nel modo di abitare in altezza
La selezione degli investimenti immobiliari nel settore alberghiero
Full text linkIl settore alberghiero ha conosciuto negli ultimi anni uno sviluppo significativo soprattutto in alcune economie, come l’Italia, in cui il movimento ha dimostrato quasi sempre una crescente capacità di produrre risultati positivi (Jones Lang Lasalle Hotels, 2009).
In letteratura un criterio unico per definire le modalità con cui migliorare un portafoglio in base alla segmentazione settoriale (vedi Hartzell, 1986) e/o geografica (vedi ad esempio Mueller e Ziering, 1992) non è ancora disponibile.
La presente tesi cerca attraverso due metodologie diverse (da una parte attraverso la diversificazione di portafoglio – Markovitz – e dall’altra attraverso una regressione lineare) di colmare questa lacuna e cercare di capire se questa diversificazione geo-settoriale possa portare benefici in questo specifico settore. Prendendo dunque spunto da alcuni lavori che hanno applicato l’approccio proposto da Markowitz agli investimenti immobiliari al fine di identificare la composizione ottimale di un portafoglio (tra gli altri Friedman, 1971), il contributo analizza i vantaggi e i limiti derivanti dalla diversificazione del rischio per gli investimenti nel settore alberghiero considerando le potenzialità della frontiera efficiente per la misurazione dell’impatto della diversificazione su un portafoglio di immobili destinati unicamente ad uso alberghiero. Lo studio dei benefici/costi della diversificazione completa, quindi, l’analisi delle performance degli investimenti realizzati da investitori istituzionali nel settore alberghiero fornendo indicazioni utili per la definizione dei criteri di costruzione un portafoglio di alberghi che massimizzi il risultato derivante dall’investimento e/o minimizzi la loro esposizione al rischio. Dall’altro lato usando un modello proposto da Heaston e Rouwenhorst (1994) la tesi analizza il ruolo dei fattori geo-settoriali nell’industria alberghiera italiana (uno dei mercati turistici più importanti al mondo).
I risultati ottenuti dalla verifica empirica su uno dei mercati più importanti a livello mondiale (Italia)[1] dimostrano come la composizione di un portafoglio ottimale di investimenti alberghieri differisca significativamente in funzione della presenza o meno di vincoli di diversificazione. Il sacrificio collegato alla riduzione del rendimento per unità di rischio assunto può essere ritenuto accettabile anche in funzione della maggiore persistenza dei risultati che caratterizza i portafogli costruiti utilizzando vincoli di diversificazione visto che la distanza media dei portafogli identificati in passato rispetto alla frontiera efficiente corrente risulta più ridotta. Inoltre l’applicazione della regressione lineare dimostra come siano le caratteristiche geografiche più significative di altre variabili, sempre in relazione alla performance della struttura.Hotel sectors represent an atypical real estate industry in which daily inflows and outflows are affected by some specific external factors that impact deeply on the demand and supply of the service. Literature considers these unpredictable dynamics related to some geographical and sectoral characteristics but an empirical study of the relative importance of these two factors is still not available. Following approaches proposed for stock market dynamics and applied also to the overall real estate industry, the paper study the relative importance of sector and geographical feature in explaining the hotel performance. In order to test this hypothesis the paper considers the Italian hotel industry, one of the most important world market for tourism and leisure, that is never analysed using these approaches.
The paper proposed tries to evaluate the benefits related to a Markowitz’s diversification approach for the construction of a real estate portfolio specialized in the hotel real estate market. The thesis considers a database collected by AICA, Italian Association Hotel Companies, in order to evaluate revenue dynamics in the hotel real estate market. On the basis of Markowitz’s theory, the analysis proposed tries to define the best diversification strategy for the portfolio’s construction in the hotel real estate market. Results achieved demonstrate that the standard geo-sectorial diversification allows to achieve good results only if some concentration constraints are established because there are some cities and/or hotel categories that are outperforming for all the time period analysed.
Using GOPPAR as a performance measure, the empirical analysis with the linear regression demonstrate that an overall national trend explains more than 50% of monthly performance of all Italian hotels and the regional features allow to explain better the misalignment respect to the national trend
The relative importance of sector and regional factors in the hotel industry: evidence from Italian market
No full textPurpose - The purpose of the paper is to compare the role of the sector and geographical features in
explaining the performance of a hotel structure.
Design methodology/approach – The paper constructs a measure of net profit for available room
(GOPPAR) for a representative sample of Italian hotels and uses a constrained linear regression model
in order to identify the role of sectoral and geographical features. The analysis is released adopting a
multiple cross sectional approach and considering not only the average role of sectoral and geographic
characteristic, but also the time trend of relation inspected.
Findings - Results obtained show that the overall national trend is not significant for explaining the
performance of each hotel. Considering geographical and sectoral features, the first of these explain
better the disalignment of the performance respect to the national average.
Research limitations/implications – The paper proposes an analysis of the hotel industry using a
standard geo-sectoral classification. More data about the characteristics of the firms considered in the
sample could allow to define a more detailed model that consider also other hotel features that could
impact on the demand and supply of the service.
Practical implications – Results could be useful for the hotel chains and for institutional investors
specialized in the hotel sector, in order to define a first guideline for the property selection process and
diversification portfolio strategy.
Originality/value – The paper represents the first work that analyse the role of regional and
sectoral factors in explaining the performance of the hotel industry and supports the thesis proposed
with and empirical evidence on world leading market (Italy)
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
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
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