This project measures the productivity of Slovak economists based on their research output using standard internationally recognized measures of scientific impact. Below is a short summary of our approach in a question and answer format.
Brian Fabo (National Bank of Slovakia), Martin Kahanec (Central European University, University of Economics in Bratislava, and CELSI), and Martin Šuster (National Bank of Slovakia).
We calculate the impact of publications and citations for each scholar included in the calculations. To stress the importance of publishing in high-quality economic journals, we only credit publications in journals included in the Web of Science(WoS) database in economics and related fields.
However, we credit citations also for articles published in journals from other disciplines as well as citations of other types of publications (working papers, books) as long as the citations are in economics journals included in the WoS.
We credit publications and citations in journals published up to two years before the journal was included in WoS.
In the baseline scores, only publications in economics journals are credited. However an article published in a non-economics journal that is relevant for economists is likely cited in economics journal, which is accounted for and which increases the score of its author through the citation score.
Furthermore, in addition to the main scores, we also produce scores based on all Social Science journals (i.e. those included in the SSCI), as well as all WoS journals, regardless of the field. Note that the last option (all WoS journals) is not recommended because of the varying citation culture across individual disciplines and fields, which negatively affects the validity of the aggregated scores.
We use three indicators of quality of a publication: Impact Factor (IF), Eigenfactor (EF) and the Article Influence Score (AIS). Publications that came up before the corresponding indicator was available (or that came up in the recent period before the relevant indicators became available) are assigned the value from the year closest relevant year.
We recommend the AIS or EF as the more robust indicators, because the IF may be distorted by a tendency of some local journals to cite each other, possibly resulting in inflated IF.
The publication score is the sum of value of individual publications, calculated based on one of the three scores (IF, EF or AIS ) divided by the square root of the number of co-authors. The citation score is calculated in the same way, except the number of co-authors refers to the co- authors of the cited document, not the citing one and the value of citation is measured by the respective indicator of the citing journal. Articles aged 10 and more years are discounted by 5% for each year above (and including) 10.
The overall score is the sum of publication and citation score weighted by the average publication score to citation score ratio. In practice the weight of the publication score is about ten times larger than the weight of citation score.
Please note that not all variables are displayed by default in the table. You can select which variables should be displayed using the “Show columns:” menu. Also, if you want to hide researchers not primarily affiliated with a Slovak institution, please tick box “Based in Slovakia”.