1,720,966 research outputs found
Conditional cooperation in game theory: an application to reuse and recycling innovations
No full textThe aim of this note is to study waste reuse and recycling innovations in strategic environments. Due to the presence of widespread externalities, cooperation can help improve efficiency in equilibrium outcomes but requires the involvement of all players. Moreover, cooperation may differ when players’ actions are strategic substitutes or strategic complements, as in the prisoner’s dilemma and stag hunt games, respectively. Empirically, waste innovation practices for a sample of Italian firms are analysed with the aim of detecting the importance and nature of
cooperation
Heterogeneous firms, exports and pigouvian pollution tax: Does the abatement technology matter?
No full textEnvironmental regulations aim at influencing individual behaviour toward more efficient use of resources and adoption of greener technologies for a sustainable development of globalized economies. This work investigates how and to what extent firms are influenced by an environmental Pigouvian tax on their technology and trade decisions. By using an international trade model with monopolistic competition that accounts for the heterogeneity of firms in terms of productivity, it is theoretically examined the decision of introducing a green technology or keeping a pollutant less advanced technology. If all firms adopt a pollutant technology, the eco-tax lowers emissions through a selection mechanism because the least productive firms are forced to leave the market. By imposing higher compliance costs to active firms, export propensity is negatively influenced as well. When abatement technologies can be adopted, an additional source of pollution reduction is obtained. The environmental tax will positively affect eco-innovation propensity and, indirectly, export propensity. However, since the positive effect will strictly depend on the amount of firm productivity, environmental tax and costs of clean technology, the Pigouvian tax can foster eco-innovation across the largest and most productive firms only. Productivity enhancing policies tailored to firm characteristics, especially size, may be more successful in the diffusion of cleaner technologies across all firms
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
Decomposing productivity patterns in a conditional convergence framework
No full textConditional convergence, Shift-share decomposition, SUR estimation, C13, C21, C23, O18, O47,
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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