1,721,603 research outputs found
A news-based macro uncertainty index for Italy
No full textIn this study, we introduce an innovative high-frequency uncertainty index derived from an extensive dataset of Italian news sources. Our index methodically sorts news items by their macroeconomic significance and underlying sentiment. We focus on a period of analysis, from July 2017 to July 2021, characterized by pronounced uncertainties, notably the emergence of the 5 Star-Lega government coalition in 2018, which introduced significant political unpredictability, and the onset of the COVID-19 pandemic. We uncover a significant correlation between our newly developed uncertainty index and measures of sovereign risk (such as the BTP-Bund spread) during the tenure of the 5 Star-Lega government. However, this correlation diminishes following the initiation of the European Central Bank's quantitative easing program, underscoring the substantial influence of political uncertainty on sovereign risk before the ECB's intervention. The index is applied to dissect the Italian macroeconomic business cycle using a mixed-frequency model that integrates both financial and real economy indicators. Additionally, the study presents a nonlinear model leveraging the index to assess its predictive power in forecasting the Italian business cycle in recent years. The findings provide substantial evidence of the index's predictive capabilities, highlighting its effectiveness in foreseeing shifts in the business cycle
Il ruolo del metodo di studio e del senso di autoefficacia nel sucesso scolastico e nella scelta del metodo di studio
No full textFree and total sterols in olive oils. Effects of neutralization
No full textIn order to further investigate the variations of the ratio of free to total sterols in different categories of olive oil and to test the possibility to use this ratio as a parameter for olive oil quality evaluation, a direct GLC quali-quantitative determination of either free or total sterols was made, and their ratio calculated, over a set 13 samples of extra Virgin oils and over a set of 28 current virgin and lampante oils. In order to study the effects of neutralization on free and total sterols, their amounts and ratio were also determined after the neutralization of the current virgin and lampante oils. The single components of free and total sterols were also analyzed, especially the most represented ones
Caratterizzazione agroclimatica di zone mediterranee: metodologie ed esempi applicativi.
No full textPrevention of serious vascular events by aspirin among patients with peripheral arterial disease: randomised, double blind trial.
No full text
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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