09/2019 - Methods to account for citation inflation in research evaluation

Quantitative research evaluation requires measures that are transparent, relatively simple, and free of disciplinary and temporal bias. We document and provide a solution to a hitherto unaddressed temporal bias – citation inflation – which arises from the basic fact that scientific publication is steadily growing at roughly 4% per year. Moreover, because the total production […]

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08/2019 - Communities and regularities in the behaviour of investment fund managers

We analyze a large microlevel dataset on the full daily portfolio holdings and exposures of 22 complex investment funds to shed light on the behavior of professional investment fund managers. We introduce a set of quantitative attributes that capture essential distinctive features of manager allocation strategies and behaviors. These characteristics include turnover, attitude toward hedging, […]

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05/2019 - Turning big data into smart data: two examples based on the analysis of the Mappa dei Rischi dei Comuni Italiani

The recently presented Mappa dei Rischi dei Comuni Italiani is a freely accessible web portal, implemented by ISTAT, which provides integrated data on different natural risks in Italian municipalities together with socio-economic and demographic data We here illustrate two paradigmatic examples where the big data of the Mappa are transformed into smart data using advanced […]

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05/2019 - Long-term correlations in short, non-stationary time series: An application to international R&D collaborations

Within the perimeter of patent collaboration networks, the average distance of collaborations and the number of countries involved per each collaboration have been shown to have increased steadily in time. Less attention, though, has been devoted to assessing whether this growth of cross-country collaborations is stable in time. To address this scientific question we focus […]

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