1,721,003 research outputs found
Studio di Eventi e Modifiche del MIB30
No full textOggetto del presente studio e' l'analisi degli effetti che si registrano in corrispondenza delle modifiche del MIB30 sui titoli interessati dalla revision
Export and Firm Performance: Evidence on Productivity and Profitability of Italian Companies
No full textEmpirical research in international trade has shown that exporting firms display higher productivity than their non-exporting competitors. This paper focuses on the relation between export and profitability. Our evidence on Italian exporting firms shows that exporting activity is not systematically associated to higher firm’s profitability. This is shown both by means of non-parametric methods and, with an approach that is more standard within the empirical trade literature, by regression techniques that try to identify an “export premium”
On the nature of technologies: knowledge, procedures, artifacts and production inputs
No full textIn the most general terms, a technology can be seen as a human-constructed means for achieving a particular end, such as the movement of goods and people, the transmission of information or the cure of a disease. These means most often entail procedures regarding how to achieve the ends concerned, particular bits of knowledge, artifacts and of course specific physical inputs necessary to yield the desired outcomes. In fact, the procedures and the underlying knowledge they draw upon, the physical and intangible inputs implicated, and the performance characteristics of outputs are different but complementary aspects of what technology is. These things are the object of this short essay
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
Credit Ratings, Economic Performance and Transition to Default: Evidence on Firm Selection at Work
No full textLEM WP 2007-1
Technologies as problem-solving procedures and technologies as input–output relations: some perspectives on the theory of production
No full textIn this work, inspired by Winter (2006), in fact of vintage 1968, we discuss the relation between three different levels of analysis of technologies, namely as (i) bodies of problem-solving knowledge, (ii) organizational procedures, and (iii) input–output relations. We begin by arguing that the "primitive" levels of investigation, "where the action is," are those which concern knowledge and organizational procedures while in most respects the I/O representation is just an ex post, derived, one. Next, we outline what we consider to be important advances in the understanding of productive knowledge and of the nature and behaviors of business organizations which to a good extent embody such a knowledge. Finally, we explore some implications of such "procedural" view of technologies in terms of input–output relations (of which standard production functions are a particular instantiation). We do that with the help of some pieces of evidence, drawing both upon incumbent literature and our own elaboration on micro longitudinal data on the Italian industry
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