1,720,962 research outputs found
Environmental impact of Italian canned tomato logistics: national vs. regional supply chains
No full textThe environmental impact of food transportation is site and product specific and depends on the direct relation between origin-to-destination distance and logistic efficiency, as pointed out by the relevant literature. This paper analyses a very specific case, comparing the impacts of transportation generated by the logistics of two brands of Italian canned tomato purchased in Sassari (Sardinia, Italy), one extending over the whole continental Italian territory, the other mainly located in the island of Sardinia. Different sale (supermarket chain vs. independent retailers) and shopping (foot vs. car) modalities are also considered. The contributions to global warming, local pollution and traffic congestion are considered. The case study shows that the logistics of the national brand is much more polluting than the regional, not only because of the longer distance between origin and destination, but also because the additional distance that is needed to reach logistic hubs is not compensated by higher load factors. Instead, the logistics of the regional brand is based on a very efficient point-to-point organization. This result is generalizable to all regional supply chains featuring high volumes of product. Results of the case study also depend on: a) the high impact of packaging transportation, because of the very low weight/volume ratio of empty cans; b) the high CO2 emission coefficient of lorries and trailers transportation by ferry (Ro–Ro). The case study also stresses the very high impact of shopping by car
Advanced Logistics in Italy: A City Network Analysis
No full textLogistics services providers present similarities with main advanced producer services as, besides their operational functions, they manage highly elaborated informational flows in order to run supply chains. Thanks to detailed information on employees provided by the social network LinkedIn, this paper proposes a World City Network analysis applied to main logistics providers operating in Italy, that focus only on knowledge and management activities. LinkedIn also allows decomposing firms' value chains and permits to develop interlocking networks dedicated to firms divisions. Italian advanced logistics appears to be primarily attracted by knowledge rich environments, rather than infrastructural nodes. The Italian network is centralised in Milan. Though, rather than an exclusive command centre, Milan acts as a hub, where part of the information and power are distributed in certain secondary cities, depending on their sectorial and geographical specificities
Logistica e transizione ecologica: una prospettiva socio-tecnica
Full text linkLa logistica fa parte dei settori che presentano il maggior ritardo nell’adozione di pratiche e tecnologie verdi. Gli attuali impegni nazionali e internazionali lasciano prospettare un’ulteriore crescita del suo impatto climalterante da qui al 2050.
Il presente contributo si propone di analizzare le dinamiche che hanno frenato l’implementazione di pratiche sostenibili, e di riflettere sulle traiettorie in cui potrebbe incanalarsi la transizione ecologica. A tale scopo, viene assunto l’approccio dell’analisi socio-tecnica della transizione, che inquadra mercati e tecnologie nel loro contesto socio-politico secondo una logica co-evolutiva.
La ricerca si basa su un caso studio a scala globale che considera congiuntamente evoluzione, dinamiche e prospettive future della logistica e della globalizzazione. L’analisi evidenzia come la convergenza di vedute rispetto alla funzione strumentale della logistica ai fini della crescita economica abbia favorito l’inerzia innovativa. L’adesione al pensiero liberoscambista, oltre a favorire la crescita dei traffici, ha determinato una situazione di competizione territoriale che sostiene pratiche non sostenibili. È probabile che in futuro la transizione ecologica faccia perno prevalentemente sull’innovazione tecnologica e/o che derivi da una regionalizzazione delle filiere produttive. In entrambi i casi, le caratteristiche socio-tecniche della logistica lasciano prospettare risultati insufficienti
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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