1,720,996 research outputs found
SIMULAZIONE DELL’ADOZIONE DEI SISTEMI DI MUNGITURA AUTOMATICI NELLE AZIENDE ZOOTECNICHE DA LATTE: UN CONFRONTO TRA NOORD-HOLLAND (NL) ED EMILIA-ROMAGNA
Full text linkL’innovazione e l’adozione di nuove tecnologie sono due elementi centrali per le imprese e i processi di sviluppo del settore agricolo. L’obiettivo di questo paper è di sviluppare un modello farm household in grado di simulare l’adozione di Sistemi di Mungitura Automatica (SMA) da parte di aziende ad indirizzo zootecnico per la produzione di latte nelle regioni Emilia-Romagna (Italia) e Noord Holland (Paesi Bassi) quando la decisione sull’adozione è caratterizzata da situazioni di incertezza riguardo alle condizioni future (costo del lavoro, prezzo del latte e scelte di policy). Il modello simula la decisione di rimpiazzare un sistema di mungitura tradizionale con dei SMA utilizzando l’approccio real options (RO) che permette alle aziende di scegliere la tempistica migliore per effettuare l’investimento in presenza di irreversibilità della decisione e incertezza. I risultati mostrano che l’adozione di SMA è influenzata dalle incertezze di policy e dalle condizioni di mercato. L’effetto di questa incertezza è quello di ritardare la decisione sull’adozione della nuova tecnologia fino a quando gli agricoltori non hanno ottenuto sufficienti informazioni per ridurre il rischio associato a un’innovazione soggetta ad effetto lock in
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
Assessing the Impacts of Different Rural Development Policy Design Options on the Adaptation of Innovation in Bulgaria and Italy Case Study
No full textInnovation and new technology adoption represent two centrral elements for the enterprise and industry development process in agriculture. the objective of the paper is to provide an ex-ante analysis of the effectiveness of alternative policy design options concering the RDP measures intended o provide incentive for investment/innovation adoption in Bulgaria and Italy sace study. The research reported in this paper was funded by the EC within the project Assessing the multiple impacts of the Common Agricultural Policies on Rural Economies (CAP-IRE)
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
Una valutazione di sostenibilità delle regioni italiane
No full textDiscussion Papers del Dipartimento di Scienze Economiche – Università di Pisa, n. 8
Modelling the adoption of automatic milking systems in Noord-Holland
No full textInnovation and new technology adoption represent two central elements for the enterprise and industry development process in agriculture. The objective of this paper is to develop a dynamic farm-household model able to simulate the adoption of Automatic Milking Systems (AMS) by dairy farms when the adoption decision is affected by uncertainty with regard to future conditions (labour
costs, milk prices and policy regulations). The model simulates the decision to replace a traditional milking system with AMS using a Real Options (RO) approach that allows farms to choose the optimal timing of investments. RO is particularly suitable when the
innovation is irreversible and uncertain. Preliminary results show that the adoption of AMS is very much affected by policy
uncertainy and by market conditions. The effect of such uncertainty is to postpone the decision to adopt the new technology until farmers have gathered enough information to reduce the risk associated with an innovation subject to lock-in effect
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