1,721,207 research outputs found
An empirical investigation of logistics infrastructure projects in emerging economies
No full textPublic–private partnerships (PPPs) are considered to be an important mechanism for developing logistics infrastructures especially in emerging economies. As acknowledged, logistics infrastructures often imply multistage projects which impose strong financial and technical commitments to private firms, in the planning and construction phases, as well as in regular operations. Despite logistics infrastructures’ practical interest, however, academic literature has not provided in-depth analysis of certain important dimensions in the area of PPPs. Grounding on the assumptions of the Resource Dependence Theory (RDT), this study investigates the impact of financial and technical complexity of logistics infrastructures on the implementation of dependence-reducing strategies in PPP arrangements. The paper performs a large empirical investigation using multivariate multiple regression analysis. The sample from the Private Participation in Infrastructure (PPI) dataset of the World Bank includes over 1300 projects involving private participations in logistics infrastructures of 85 developing countries, for a total investment of around 334 billion USD in the 1996–2013 period. The sample projects belong to major logistics and transport sectors such as ports, airports, roads, and railways. Information is confirmed and complemented by data derived from International Union of Railways, Airports Council International, Drewry Shipping Consultants, and International Association of Ports and Harbours. The results demonstrate the adoption of some dependence-reducing strategies in response to the financial and technical complexity of PPP projects, e.g., large number of private partners in the PPP project company, broad experience of the consortium members, and familiarity of investors with the host cultural area. Through the RTD theoretical lens, the paper advances knowledge on existing literature on PPP in logistics infrastructures and describes implications for both academics and practitioners
Dependence-reducing strategy of logistics infrastructure projects: An empirical investigation in emerging economies
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Impact of disruptive technologies on maritime trade and maritime industry : blockchain, 3D printing, e-commerce & battery technology (for harbour craft)
No full textDisruptive technologies are introducing new threats and opportunities for companies, government bodies, and economies. Understanding the impact of disruptive technologies is a priority for industry leaders and policymakers across all economic sectors. For the maritime sector, the impact of rapid technological change can be categorised into two key areas: i) impact on the maritime industry itself through changing business models driven by technology; ii) impact on maritime trade caused by upstream technological changes in other sectors, e.g. in manufacturing. This report focuses on the following four disruptive technologies and aims to generate new insights on the impact of these technologies on maritime trade and maritime industry: 3D printing, blockchain, e-commerce, and battery technology for harbour craft. The analyses are conducted from different perspectives such as the change of global supply chains, flow of information and finances, physical cargo movement, infrastructure development and environmental impact. Implications are also provided for stakeholders better preparing themselves for future opportunities and challenges
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