Research articles

How do you define and measure research productivity? 

Published articles

2026

• D’Angelo, C.A. (2026). Testing for Alphabetical Bias in the c-Score: Implications for Evaluating Scientific Excellence. Forthcoming in Journal of Informetrics.

• Abramo, G., Carotenuto, P., D'Angelo, C.A. & Salvatore, A. (2026). Faculty Shuffle: Simulating Institutional Gaming in Research Evaluation. Scientometrics.

• Abramo, G., Cicero, T., & D'Angelo, C.A. (2026). Data Source Effects in Research Performance Assessment of Individuals and Institutions: Comparing OpenAlex with Established Bibliographic Databases. Scientometrics.

• Abramo, G., D'Angelo, C.A., Gzoyan, E., & Sargsyan, S. (2026). National Contexts and Gendered Research Performance: A Study of Armenia and Italy. Scientometrics.

• Abramo, G., & D'Angelo, C.A. (2026). Sex bias in peer review and citation practices: Implications for research evaluation. Journal of Informetrics, 20(1), 101762 

2025

• D’Angelo, C.A. (2025). The 2014-2019 VQR, Italy’s Third National Research Assessment: An Intended Informed Peer Review or a DIY Bibliometric Exercise? Research evaluation, 34, rvaf043

• Abramo, G., & D’Angelo, C.A. (2025). Peer review research assessment: Are the reviewers really experts? Research evaluation, 34, rvaf043.

• Abramo, G., Cicero, T., & D’Angelo, C.A. (2025). Enhancing the prediction of publications’ long-term impact using early citations, readerships, and non-scientific factors. Journal of Informetrics, 19(4), 101725.

• Abramo, G., & D’Angelo, C.A. (2025). Hyperprolific authorship: Unveiling the extent of extreme publishing in the ‘publish or perish’ era. Journal of Informetrics, 19(2), 101658.

• Abramo, G., D’Angelo, C.A. & Grilli, L. (2025). Exploring the effects of journal article features: Implications for automated prediction of scholarly impact . Journal of Data and Information Science.

• Abramo, G., & D’Angelo, C.A. (2025). Inter- and intra-domain knowledge flows: Examining their relationship with impact at the field level over time. Journal of Informetrics, 19(1), 101614.

• D’Angelo, C.A. (2025). Examining “Salami slicing” publications as a side-effect of research performance evaluation: An empirical study. Journal of Data and Information Science. 

• Abramo, G., D'Angelo, C.A., Gzoyan, E., & Sargsyan, S. (2025). Benchmarking research performance in a post-Soviet science system: the case of Armenia. Scientometrics.

2024

• Abramo, G., D’Angelo, C.A. & Grilli, L. (2024). The role of non-scientific factors vis-à-vis the quality of publications in determining their scholarly impact. Scientometrics, 129, 5003-5019.

• Abramo, G., Apponi F., & D'Angelo, C.A. (2024). Do research universities specialize in disciplines where they hold a comparative advantage? Scientometrics, 129, 5453-5468 

• Abramo, G., & D’Angelo, C.A. (2024). The scientific competitiveness of nations and its relationship with economic competitiveness. PLoS ONE, 19(6): e0304299.

• Abramo, G., Apponi F., & D'Angelo, C.A. (2024). The moderating role of the territorial research infrastructure on the geographic proximity effect in research collaborations: a regional-based view.. Scientometrics., 129, 3149–3168.

• Abramo, G. (2024). The forced battle between peer-review and scientometric research assessment: Why the CoARA initiative is unsound.  Research Evaluation, rvae021.

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2024). Do research assessment systems have the potential to hinder scientists from diversifying their research pursuits? Scientometrics. 

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2024). The moderating role of personal characteristics of authors in the tradeoff between quantity and average impact of research publications. Journal of Informetrics, 18(1), 101495.

2023

• Abramo, G., & D’Angelo, C.A. (2023). Warnings of declining research productivity: does Italy buck the trend? Research Evaluation, 32(3), 557-565.

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2023). USA vs Russia in the scientific arena. PLoS ONE, 18(7), e0288152. 

• Abramo, G., & D’Angelo, C.A. (2023). The impact of Italian performance-based research funding systems on the intensity of international research collaboration. Research Evaluation, 32(1), 47–57.

• Abramo, G., D’Angelo, C.A., & Hladchenko, M. (2023). Assessing the effects of publication requirements for professorship on research performance and publishing behaviour of Ukrainian academics. Scientometrics, 128, 4589-4609. 

• Abramo, G., et al. (2023). Retraction of “Predatory publishing in Scopus: evidence on cross-country differences” lacks justification. Scientometrics, 128,1459-1461.

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2023). Correlating article citedness and journal impact: an empirical investigation by field on a large-scale dataset. Scientometrics, 128, 1877–1894.

• Abramo, G., & D’Angelo, C.A. (2023). How reliable are unsupervised author disambiguation algorithms in the assessment of research organization performance? Quantitative Science Studies, 4(1), 144-166.

• Abramo, G., & D'Angelo, C.A. (2023). Bibliometrics, the “Clinical Diagnostics” of Research Impact; Comment on ““We’re Not Providing the Best Care If We Are Not on the Cutting Edge of Research”: A Research Impact Evaluation at a Regional Australian Hospital and Health Service”. International Journal of Health Policy and Management, 12(1), 1-4.

2022

• Abramo, G., D’Angelo, C.A., & Mele, I. (2022). Impact of Covid-19 on research output by gender across countries. Scientometrics, 127(12), 6811–6826. DOI: 10.1007/s11192-021-04245-x 

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2022). How the Covid-19 crisis shaped research collaboration behaviour. Scientometrics, 127(8), 5053-5071. DOI: 10.1007/s11192-022-04450-2

• Abramo, G., Aksnes, D.W., & D’Angelo, C.A. (2022). Unveiling the distinctive traits of a nation’s research performance: the case of Italy and Norway. Quantitative Science Studies, 3(3), 732-754. DOI: 10.1162/qss_a_00198

• Abramo, G., & D’Angelo, C.A. (2022). Drivers of academic engagement in public-private research collaboration: an empirical study. Journal of Technology Transfer, 47, 1861-1884. DOI: 10.1007/s10961-021-09884-z

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2022). Measuring and interpreting the differences of the nations’ scientific specialization indexes by output and by input. Quantitative Science Studies. Quantitative Science Studies, 3(3), 755-775. DOI: 10.1162/qss_a_00206

• Abramo, G., D'Angelo, C.A., & Di Costa, F. (2022). Revealing the scientific comparative advantage of nations: Common and distinctive features. Journal of Informetrics, 16(1), 101244. DOI: 10.1016/j.joi.2021.101244

• Abramo, G., D’Angelo, C.A. & Di Costa, F. (2022). The effect of academic mobility on research performance: the case of Italy. Quantitative Science Studies, 3(2), 345–362. DOI: 10.1162/qss_a_00192

• Abramo, G., Apponi F., & D’Angelo, C.A. (2022). The geographic proximity effect on domestic cross-sector vis-à-vis intra-sector research collaborations. Scientometrics, 127, 3505–3521. DOI: 10.1007/s11192-022-04404-8 

2021

• Abramo, G., & D’Angelo, C.A. (2021). The different responses of Italian universities to introduction of performance-based research funding. Research Evaluation, 30(4), 514-528. DOI: 10.1093/reseval/rvab022 

• Abramo, G., & Oxley, L. (2021). Scientometric-based analysis in business and economics: Introduction, examples, and guidelines. Journal of Economic Surveys, 35(5), 1261-1270, DOI: 10.1111/joes.12476 

• Abramo, G., D’Angelo, C.A., & Grilli, L. (2021). The effects of citation-based research evaluation schemes on self-citation behaviour. Journal of Informetrics, 15(4), 101204. DOI: 10.1016/j.joi.2021.101204.

• Abramo, G., D’Angelo, C.A., & Di Costa, F. (2021). The scholarly impact of private sector research a multivariate analysis. Journal of Informetrics, 15(3), 101191. DOI: 10.1016/j.joi.2021.101191 

• Abramo, G., Apponi, F., & D’Angelo, C.A. (2021). Public-private research collaborations: longitudinal field-level analysis of determinants, frequency and impact. Journal of Economic Surveys, 35(5), 1405-1427, DOI: 10.1111/joes.12425

• Abramo, G., & D’Angelo, C.A. (2021). A bibliometric methodology to unveil territorial inequities in the scientific wealth to combat COVID-19. Scientometrics, 126(8), 6601-6624. DOI: 10.1007/s11192-021-04017-7 

• Abramo, G., Aksnes, D.W., & D’Angelo, C.A. (2021). Gender differences in research performance within and between countries: Italy vs Norway. Journal of Informetrics, , 15(2), 101144. DOI: 10.1016/j.joi.2021.101144

• Abramo, G., D’Angelo, C.A., & Di Costa, F. (2021). On the relation between the degree of internationalization of cited and citing publications: A field level analysis, including and excluding self-citations. Journal of Informetrics, 15(1), 101101. DOI: 10.1016/j.joi.2020.101101. 

2020

• Abramo, G., & D'Angelo, C.A. (2020). Were the Italian policy reforms to contrast favoritism and foster effectiveness in faculty recruitment successful? Science and Public Policy, 47(5), 604–615 DOI: 10.1093/scipol/scaa048 

• Abramo, G., & D’Angelo, C.A. (2020). The domestic localization of knowledge flows as evidenced by publication citation: The case of Italy. 125(2), 1305–1329. DOI: 10.1007/s11192-020-03487-5

• Abramo, G., D’Angelo, C.A., & Felici, G. (2020). Informed peer review for publication assessments: Are improved impact accuracy measures worth the hassle? Quantitative Science Studies, 1(3), 1321-1333. DOI: 10.1162/qss_a_00051 

• Abramo, G., D’Angelo, C.A., & Di Costa, F. (2020). Knowledge spillovers: does the geographic proximity effect decay over time? A discipline-level analysis, accounting for cognitive proximity, with and without self-citations. Journal of Informetrics, 14(4), 101072. DOI: 10.1016/j.joi.2020.101072 

• Fronzetti Colladon, A., D'Angelo, C.A., & Gloor, P.A. (2020). Predicting the future success of scientific publications through social network and semantic analysis. Scientometrics, 124(1), 357-377. DOI: 10.1007/s11192-020-03479-5.

• Abramo, G., D'Angelo, C.A., & Di Costa, F. (2020). Does the geographic proximity effect on knowledge spillovers vary across research fields? Scientometrics, 123(2), 1021-1036. DOI: 10.1007/s11192-020-03411-x

• D'Angelo, C.A., & van Eck, N.J. (2020). Collecting large-scale publication data at the level of individual researchers: a practical proposal for author name disambiguation. Scientometrics, 123(2), 883-907. DOI: 10.1007/s11192-020-03410-y .

• Abramo, G., D'Angelo, C.A., Di Costa, F. (2020). The role of geographic proximity in knowledge diffusion, measured by citations to scientific literature. Journal of Informetrics, 14(1), 101010. DOI: 10.1016/j.joi.2020.101010

• Abramo, G., D'Angelo, C.A. (2020). A novel methodology to assess the scientific standing of nations at field level. Journal of Informetrics, 14(1), 100986. DOI: 10.1016/j.joi.2019.100986

• Abramo, G., Aknes, D.W., D'Angelo, C.A. (2020). Comparison of research productivity of Italian and Norwegian professors and universities. Journal of Informetrics, 14(2), 101023. DOI: 10.1016/j.joi.2020.101023 

2019

• Abramo, G., & D’Angelo, C.A., (2019). I settori scientifici di forza e di debolezza della ricerca accademica italiana. In “Relazione sulla ricerca e l’innovazione in Italia: Analisi e dati di politica della scienza e della tecnologia-II edizione” (Archibugi D., Tuzi F., eds), CNR Edizioni, October 2019, pp. 49-79. ISBN 9788880803577

• Abramo, G., D'Angelo, C.A., Reale, E. (2019). Peer review vs bibliometrics: which method better predicts the scholarly impact of publications? Scientometrics, 121(1), 537-554. DOI: 10.1007/s11192-019-03184-y 

• Abramo, G., D’Angelo, C.A., & Di Costa, F. (2019). When research assessment exercises leave room for opportunistic behavior by the subjects under evaluation. Journal of Informetrics, 13(3), 830-840. DOI: 10.1016/j.joi.2019.07.006

• Abramo, G., D’Angelo, C.A., & Di Costa, F. (2019). A gender analysis of top scientists’ collaboration behavior: evidence from Italy. Scientometrics, 120(2), 405-418. DOI: 10.1007/s11192-019-03136-6

• D’Angelo, C.A., Di Russo, S. (2019). Testing for universality of Mendeley readership distributions. Journal of Informetrics, 13(2), 726-737. DOI: 10.1016/j.joi.2019.03.011

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2019). Diversification versus specialization in scientific research: which strategy pays off? Technovation, 82-83, 51-57. DOI: 10.1016/j.technovation.2018.06.010

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2019). Authorship analysis of specialized vs diversified research output. Journal of Informetrics, 13(2), 564-573. DOI: 10.1016/j.joi.2019.03.004

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2019). A nation’s foreign and domestic professors: which have better research performance? (The Italian case). Higher Education, 77(5), 917–930. DOI: 10.1007/s10734-018-0310-x

• Giuffrida, C., Abramo, G., D’Angelo, C.A. (2019). Are all citations worth the same? Valuing citations by the value of the citing items. Journal of Informetrics, 13(2), 500-514. DOI: 10.1016/j.joi.2019.02.008

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2019). The collaboration behavior of top scientists. Scientometrics, 118(1), 215-232. DOI: 10.1007/s11192-018-2970-9

• Abramo, G., D’Angelo, C.A., Felici, G. (2019). Predicting long-term publication impact through a combination of early citations and journal impact factor. Journal of Informetrics, 13(1), 32-49. DOI: 10.1016/j.joi.2018.11.003

• Abramo, G., D’Angelo, C.A., Carloni, M. (2019). The balance of knowledge flows. Journal of Informetrics, 13(1), 1-9. DOI: 10.1016/j.joi.2018.11.001

2018

• Abramo, G., D’Angelo, C.A., Zhang, L. (2018). A comparison of two approaches for measuring interdisciplinary research output: the disciplinary diversity of authors vs the disciplinary diversity of the reference list. Journal of Informetrics, 12(4), 1182-1193. DOI: 10.1016/j.joi.2018.09.001

• Abramo, G. (2018). Revisiting the scientometric conceptualization of impact and its measurement. Journal of Informetrics, 12(3), 590-597. DOI: 10.1016/j.joi.2018.05.001

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2018). The effect of multidisciplinary collaborations on research diversification. Scientometrics, 116(1), 423-433. DOI: 10.1007/s11192-018-2746-2

• Abramo, G. (2018). Le Pubblicazioni scientifiche. In “Relazione sulla ricerca e l’innovazione in Italia: Analisi e dati di politica della scienza e della tecnologia” (Archibugi D., Tuzi F., eds), CNR Edizioni, June 2018, pp. 105-128. ISBN 9788880802709 

• Abramo, G., D’Angelo, C.A. (2018). Who benefits from a country’s scientific research? Journal of Informetrics, 12(1), 249-258. DOI: 10.1016/j.joi.2018.01.003

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2018). The effects of gender, age and academic rank on research diversification. Scientometrics, 114(2), 373–387. DOI: 10.1007/s11192-017-2529-1

2017

• Abramo, G., D’Angelo, C.A., Murgia, G. (2017). The relationship among research productivity, research collaboration, and their determinants. Journal of Informetrics, 11(4), 1016-1030. DOI: 10.1016/j.joi.2017.09.007

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2017). Specialization versus diversification in research activities: the extent, intensity and relatedness of field diversification by individual scientists. Scientometrics, 112(3), 1403–1418. DOI: 10.1007/s11192-017-2426-7

• Abramo, G., D’Angelo, C.A., (2017). On tit for tat: Franceschini and Maisano versus ANVUR regarding the Italian research assessment exercise VQR 2011-2014. Journal of Informetrics, 11(3), 783-787. DOI: 10.1016/j.joi.2017.06.003

• Abramo, G., & D'Angelo, C. A. (2017). Response to comments on: “Does your surname affect the citability of your publications?”. Journal of Informetrics, 11(3), 855-858. doi:10.1016/j.joi.2017.07.006

• Abramo, G. (2017). Bibliometric evaluation of research performance: where do we stand? Voprosy Obrazovaniya, 2017(1), 112-127. DOI: 10.17323/1814-9545-2017-1-112-127

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2017). Do interdisciplinary research teams deliver higher gains to science? Scientometrics, 111(1), 317-336. DOI: 10.1007/s11192-017-2253-x

• Abramo, G., D’Angelo, C.A., Soldatenkova, A. (2017). An investigation on the skewness patterns and fractal nature of research productivity distributions at field and discipline level. Journal of Informetrics, 11(1), 324-335. DOI: 10.1016/j.joi.2017.02.001

• Abramo, G., D’Angelo, C.A., Soldatenkova, A. (2017). How long do top scientists maintain their stardom? An analysis by region, gender and discipline: evidence from Italy. Scientometrics, 110(2), 867–877. DOI: 10.1007/s11192-016-2193-x

• Abramo, G., D’Angelo, C.A., (2017). Does your surname affect the citability of your publications? Journal of Informetrics, 11(1), 121-127. DOI: 10.1016/j.joi.2016.12.003

2016

• Abramo, G., D’Angelo, C.A. (2016). Refrain from adopting the combination of citation and journal metrics to grade publications, as used in the Italian national research assessment exercise (VQR 2011-2014). Scientometrics, 109(3), 2053-2065. DOI: 10.1007/s11192-016-2153-5

• Abramo, G., D’Angelo, C.A., Soldatenkova, A. (2016). The dispersion of the citation distribution of top scientists’ publications. Scientometrics, 109(3), 1711-1724. DOI: 10.1007/s11192-016-2143-7

• Abramo, G., D’Angelo, C.A., Rosati, F. (2016). The north-south divide in the Italian higher education system. Scientometrics, 109(3), 2093-2117. DOI: 10.1007/s11192-016-2141-9

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2016). The effect of a country’s name in the title of a publication on its visibility and citability. Scientometrics, 109(3), 1895-1909. DOI: 10.1007/s11192-016-2120-1

• Abramo, G., D’Angelo, C.A. (2016). A comparison of university performance scores and ranks by MNCS and FSS. Journal of Informetrics, 10(4), 889-901. DOI: 10.1016/j.joi.2016.07.004

• Abramo, G., D’Angelo, C.A., Grilli, L. (2016). From rankings to funnel plots: the question of accounting for uncertainty when measuring university research performance. Journal of Informetrics, 10(3), 854-862. DOI: 10.1016/j.joi.2016.07.005

• Abramo, G., D’Angelo, C.A. (2016). A farewell to the MNCS and like size-independent indicators. Journal of Informetrics. 10(2), 646-651. DOI: 10.1016/j.joi.2016.04.006

• Abramo, G., D’Angelo, C.A. (2016). A farewell to the MNCS and like size-independent indicators: Rejoinder. Journal of Informetrics. 10(2), 679-683. DOI: 10.1016/j.joi.2016.01.011

• Abramo, G., D’Angelo, C.A., Murgia, G. (2016). The combined effects of age and seniority on research performance of full professors. Science and Public Policy, 43(3), 301-319. DOI: 10.1093/scipol/scv037

• Abramo, G., D’Angelo, C.A., Soldatenkova, A. (2016). The ratio of top scientists to the academic staff as an indicator of the competitive strength of universities. Journal of Informetrics, 10(2), 596-605. DOI: 10.1016/j.joi.2016.04.013

• Abramo, G., D’Angelo, C.A., Rosati, F. (2016). A methodology to measure the effectiveness of academic recruitment and turnover. Journal of Informetrics, 10(1), 31-42. DOI: 10.1016/j.joi.2015.10.004

• Abramo, G., D’Angelo, C.A., Rosati, F. (2016). Gender bias in academic recruitment. Scientometrics, 106(1), 119-141. DOI: 10.1007/s11192-015-1783-3

2015

• Abramo, G., D’Angelo, C. A. (2015). Accounting for gender research performance differences in ranking universities. Current Science, 109(10), 1783-1789. DOI: 10.18520/v109/i10/1783-1789

• Abramo, G., D’Angelo, C.A., Rosati, F. (2015). Selection committees for academic recruitment: does gender matter? Research Evaluation, 24(4), 392-404. DOI: 10.1093/reseval/rvv019

• Abramo, G., D’Angelo, C.A., Grilli, L. (2015). Funnel plots for visualizing uncertainty in the research performance of institutions. Journal of Informetrics, 9(4), 954-961. DOI: 10.1016/j.joi.2015.08.006

• Abramo, G., D’Angelo, C.A., Rosati, F. (2015). The determinants of academic career advancement: evidence from Italy. Science and Public Policy, 42(6), 761-774. DOI: 10.1093/scipol/scu086

• Abramo, G., D’Angelo, C.A. (2015). The VQR, Italy’s second national research assessment: Methodological failures and ranking distortions. Journal of the Association for Information Science and Technology, 66(11), 2202-2214. DOI: 10.1002/asi.23323

• Abramo, G., D’Angelo, C.A. (2015). An assessment of the first “scientific accreditation” for university appointments in Italy. Economia Politica-Journal of Analytical and Institutional Economics, 32(3), 329-357. DOI: 10.1007/s40888-015-0016-9

• Abramo, G., D’Angelo, C.A. (2015). Ranking research institutions by the number of highly-cited articles per scientist. Journal of Informetrics, 9(4), 915-923. DOI: 10.1016/j.joi.2015.09.001

• Abramo, G., D’Angelo, C.A. (2015). The relationship between the number of authors of a publication, its citations and the impact factor of the publishing journal: Evidence from Italy. Journal of Informetrics, 9(4), 746-761. DOI: 10.1016/j.joi.2015.07.003

• Abramo, G., D’Angelo, C.A. (2015). A methodology to compute the territorial productivity of scientists: The case of Italy. Journal of Informetrics, 9(4), 675-685. DOI: 10.1016/j.joi.2015.07.007

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2015). A new approach to measure the scientific strengths of territories. Journal of the Association for Information Science and Technology, 66(6), 1167-1177. DOI: 10.1002/asi.23257.

• Abramo, G., D’Angelo, C.A. (2015). Evaluating university research: same performance indicator, different rankings. Journal of Informetrics, 9(3), 514-525. DOI: 10.1016/j.joi.2015.04.002

• Abramo, G., Cicero, T., D’Angelo, C.A. (2015). Should the research performance of scientists be distinguished by gender? Journal of Informetrics, 9(1), 25-38. DOI: 10.1016/j.joi.2014.11.002.

• Abramo, G., Costa, C., D’Angelo, C.A. (2015). A multivariate stochastic model to assess research performance. Scientometrics, 102(2), 1755-1772. DOI: 10.1007/s11192-014-1474-5.

2014

• Abramo, G., D’Angelo, C.A. (2014). How do you define and measure research productivity? Scientometrics, 101(2), 1129-1144. DOI: 10.1007/s11192-014-1269-8

• Abramo, G., D’Angelo, C.A., Rosati, F. (2014). Relatives in the same university faculty: nepotism or merit? Scientometrics, 101(1), 737-749. DOI: 10.1007/s11192-014-1273-z

• Abramo, G., D’Angelo, C.A. (2014). Assessing national strengths and weaknesses in research fields. Journal of Informetrics, 8(3), 766-775. DOI: 10.1016/j.joi.2014.07.002

• Abramo, G., D’Angelo, C.A., (2014). The spin-off of elite universities in non-competitive, undifferentiated higher education systems: an empirical simulation in Italy. Studies in Higher Education, 39(7), 1270-1289. DOI: 10.1080/03075079.2013.801426

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2014). A new bibliometric approach to assess the scientific specialization of regions. Research Evaluation, 23(2), 183-194. DOI: 10.1093/reseval/rvu005

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2014). Investigating returns to scope of research fields in universities. Higher Education, 68(1), 69-85. DOI: 10.1007/s10734-013-9685-x

• Abramo, G., D’Angelo, C.A., Murgia, G. (2014). Variation in research collaboration patterns across academic ranks. Scientometrics, 98(3), 2275-2294. DOI: 10.1007/s11192-013-1185-3

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2014). Inefficiency in selecting products for submission to national research assessment exercises. Scientometrics, 98(3), 2069-2086. DOI: 10.1007/s11192-013-1177-3

• Abramo, G., D’Angelo, C.A., Rosati, F. (2014). Career advancement and scientific performance in universities. Scientometrics, 98(2), 891-907. DOI: 10.1007/s11192-013-1075-8

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2014). Variability of research performance across disciplines within universities in non-competitive higher education systems. Scientometrics, 98(2), 777-795. DOI: 10.1007/s11192-013-1088-3

• Abramo, G., Cicero T, D’Angelo, C.A. (2014). Are the authors of highly cited articles also the most productive ones? Journal of Informetrics, 8(1), 89-97. DOI: 10.1016/j.joi.2013.10.011

2013

• Abramo, G., D’Angelo, C.A., Viel, F. (2013). The suitability of h and g indexes for measuring the research performance of institutions. Scientometrics, 97(3), 555-570.  DOI: 10.1007/s11192-013-1026-4

• Abramo, G., D’Angelo, C.A., Rosati, F. (2013). Measuring institutional research productivity for the life sciences: the importance of accounting for the order of authors in the byline. Scientometrics, 97(3), 779-795. DOI: 10.1007/s11192-013-1013-9

• Abramo, G., D’Angelo, C.A., Murgia, G. (2013). Gender differences in research collaboration. Journal of Informetrics, 7(4), 811-822. DOI: 10.1016/j.joi.2013.07.002

• Abramo, G., D’Angelo, C.A., Viel, F. (2013). Assessing the accuracy of the h- and g-indexes for measuring researchers’ productivity. Journal of the American Society for Information Science and Technology, 64(6), 1224-1234. DOI: 10.1002/asi.22828.

• Abramo, G., Cicero, T., D’Angelo, C.A. (2013). Individual research performance: a proposal for comparing apples to oranges. Journal of Informetrics, 7(2), 528-539. DOI: 10.1016/j.joi.2013.01.013

• Abramo, G., Cicero, T., D’Angelo, C.A. (2013). National peer-review research assessment exercises for the hard sciences can be a complete waste of money: the Italian case. Scientometrics, 95(1), 311-324. DOI: 10.1007/s11192-012-0875-6

• Abramo, G., D’Angelo, C.A., Murgia, G. (2013). The collaboration behaviors of scientists in Italy: a field level analysis. Journal of Informetrics, 7(2), 442-454. DOI: 10.1016/j.joi.2013.01.009

• Abramo, G., D’Angelo, C.A., Viel, F. (2013). Selecting competent referees to assess research projects proposals: a study of referees’ registers. Research Evaluation, 22(1), 41-51. DOI: 10.1083/reseval/rvs031

• Abramo, G., D’Angelo, C.A., Rosati, F. (2013). The importance of accounting for the number of co-authors and their order when assessing research performance at the individual level in the life sciences. Journal of Informetrics, 7(1), 198-208. DOI: 10.1016/j.joi.2012.11.003

• Abramo, G., Cicero, T., D’Angelo, C.A. (2013). The impact of unproductive and top researchers on overall university research performance. Journal of Informetrics, 7(1), 166-175. DOI: 10.1016/j.joi.2012.10.006

2012

• Abramo, G., D’Angelo, C.A., Cicero, T. (2012). What is the appropriate length of the publication period over which to assess research performance? Scientometrics, 93(3), 1005-1017. DOI: 10.1007/s11192-012-0714-9

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2012). Identifying interdisciplinarity through the disciplinary classification of coauthors of scientific publications. Journal of the American Society for Information Science and Technology, 63(11), 2206-2222. DOI: 10.1002/asi.22647

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). How important is choice of the scaling factor in standardizing citations? Journal of Informetrics, 6(4), 645-654. DOI: 10.1016/j.joi.2012.07.002

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). Revisiting the scaling of citations for research assessment. Journal of Informetrics, 6(4), 470-479. DOI: 10.1016/j.joi.2012.03.005

• Abramo, G., D’Angelo, C.A., Ferretti, M., Parmentola, A. (2012). An individual-level assessment of the relationship between spin-off activities and research performance in universities. R&D Management, 42(3), 225-242. DOI: 10.1111/j.1467-9310.2012.00680.x.

• Abramo, G., D’Angelo, C.A., Solazzi, M. (2012). A bibliometric tool to assess the regional dimension of university-industry research collaborations. Scientometrics, 91(3), 955-975. DOI: 10.1007/s11192-011-0577-5

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). Revisiting size effects in higher education research productivity. Higher Education, 63(6), 701-717. DOI: 10.1007/s10734-011-9471-6

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). A sensitivity analysis of researchers’ productivity rankings to the time of citation observation. Journal of Informetrics, 6(2), 192-201. DOI: 10.1016/j.joi.2011.12.003

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). The dispersion of research performance within and between universities as a potential indicator of the competitive intensity in higher education systems. Journal of Informetrics, 6(2), 155-168. DOI: 10.1016/j.joi.2011.11.007

• Abramo, G., Cicero, T., D’Angelo, C.A. (2012). A sensitivity analysis of research institutions’ productivity rankings to the time of citation observation. Journal of Informetrics, 6(2), 298-306. DOI: 10.1016/j.joi.2011.11.005.

• Abramo, G., Pugini, F. (2012). Assessing the relative technology transfer performance of universities and public research laboratories: the case of Italy. International Journal of Technology Transfer and Commercialisation, 11(1-2), 51-69. DOI: 10.1504/IJTTC.2012.043912

2011

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2011). National research assessment exercises: a comparison of peer review and bibliometrics rankings. Scientometrics, 89(3), 929-941. DOI: 10.1007/s11192-011-0459-x

• Abramo, G., Cicero, T., D’Angelo, C.A. (2011). Assessing the varying level of impact measurement accuracy as a function of the citation window length. Journal of Informetrics, 5(4), 659-667. DOI: 10.1016/j.joi.2011.06.004

• Abramo, G., Cicero, T., D’Angelo, C.A. (2011). A field-standardized application of DEA to national-scale research assessment of universities. Journal of Informetrics, 5(4), 618-628. DOI: 10.1016/j.joi.2011.06.001

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2011). Research productivity: are higher academic ranks more productive than lower ones? Scientometrics, 88(3), 915-928. DOI: 10.1007/s11192-011-0426-6.

• Abramo, G., D’Angelo, C.A., Viel, F. (2011). The field-standardized average impact of national research systems compared to world average: the case of Italy. Scientometrics, 88(2), 599-615. DOI: 10.1007/s11192-011-0406-x.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2011). National research assessment exercises: the effects of changing the rules of the game during the game. Scientometrics, 88(1), 229-238. DOI: 10.1007/s11192-011-0373-2.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2011). University-industry research collaboration: a model to assess university capability. Higher Education, 62(2, 163-181. DOI: 10.1007/s10734-010-9372-0

• Abramo, G., D’Angelo, C.A. (2011). Evaluating research: from informed peer review to bibliometrics. Scientometrics, 87(3), 499-514. DOI: 10.1007/s11192-011-0352-7.

• Abramo, G., Cicero, T., D’Angelo, C.A. (2011). The dangers of performance-based research funding in non-competitive higher education systems. Scientometrics, 87(3), 641-654. DOI: 10.1007/s11192-011-0355-4.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2011). A national-scale cross-time analysis of university research performance. Scientometrics, 87(2), 399-413. DOI: 10.1007/s11192-010-0319-0.

• Abramo, G., D’Angelo, C.A., Solazzi, M. (2011). The relationship between scientists’ research performance and the degree of internationalization of their research. Scientometrics, 86(3), 629-643. DOI: 10.1007/s11192-010-0284-7.

• Abramo, G., D’Angelo, C.A., Di Costa, F., Solazzi, M. (2011). The role of information asymmetry in the market for university-industry research collaboration. The Journal of Technology Transfer, 36(1), 84-100. DOI: 10.1007/s10961-009-9131-5.

• D’Angelo, C.A., Giuffrida C., Abramo, G. (2011). A heuristic approach to author name disambiguation in bibliometrics databases for large-scale research assessments. Journal of the American Society for Information Science and Technology, 62(2), 257-269. DOI: 10.1002/asi.21460.

• Abramo, G., D’Angelo, C.A. (2011). National-scale research performance assessment at the individual level. Scientometrics, 86(2), 347-364. DOI: 10.1007/s11192-010-0297-2.

• Abramo, G., D’Angelo, C.A., Solazzi, M. (2011). Are researchers that collaborate more at the international level top performers? An investigation on the Italian university system. Journal of Informetrics, 5(1), 204-213. DOI: 10.1016/j.joi.2010.11.002.

2006-2010

• Abramo, G., D’Angelo, C.A., Viel, F. (2010). Peer review research assessment: a sensitivity analysis of performance rankings to the share of research product evaluated. Scientometrics, 85(3), 705-720. DOI: 10.1007/s11192-010-0238-0.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2010). Citations versus journal impact factor as proxy of quality: Could the latter ever be preferable? Scientometrics, 84(3), 821-833. DOI: 10.1007/s11192-010-0200-1.

• Abramo, G., D’Angelo, C.A., Solazzi, M. (2010). National research assessment exercises: a measure of the distortion of performance rankings when labor input is treated as uniform. Scientometrics, 84(3), 605-619. DOI: 10.1007/s11192-010-0164-1.

• Abramo, G., D’Angelo, C.A., Viel, F. (2010). A robust benchmark for the h- and g-indexes. Journal of the American Society for Information Science and Technology, 61(6), 1275-1280. DOI: 10.1002/asi.21330.

• Abramo, G., D’Angelo, C.A., Solazzi, M. (2010). Assessing public-private research collaboration: is it possible to compare university performance? Scientometrics. 84(1), 173-197. DOI: 10.1007/s11192-009-0104-0.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2010). Testing the trade-off between productivity and quality in research activities. Journal of the American Society for Information Science and Technology, 61(1), 132-140. DOI: 10.1002/asi.21254.

• Abramo, G., D’Angelo, C.A. (2009). A decision support system for public research organizations participating in national research assessment exercises. Journal of the American Society for Information Science and Technology, 60(10), 2095-2106. DOI: 10.1002/asi.21126.

• Abramo, G., D’Angelo, C.A., Caprasecca, A. (2009). The contribution of star scientists to overall sex differences in research productivity. Scientometrics, 81(1), 137-156. DOI: 10.1007/s11192-008-2131-7.

• Abramo, G., D’Angelo, C.A., Di Costa, F., Solazzi, M. (2009). University-industry collaboration in Italy: a bibliometric examination. Technovation, 29(6-7), 498-507. DOI: 10.1016/j.technovation.2008.11.003.

• Abramo, G., D’Angelo, C.A. (2009). The alignment of public research supply and industry demand for effective technology transfer: the case of Italy. Science and Public Policy, 36(1), 2-14. DOI: 10.3152/030234209X403226.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2009). Mapping excellence in national research systems: the case of Italy. Evaluation Review, 33(2), 159-188. DOI: 10.1177/0193841X08322871.

• Abramo, G., D’Angelo, C.A., Caprasecca, A. (2009). Allocative efficiency in public research funding: can bibliometrics help? Research Policy, 38(1), 206-215. DOI: 10.1016/j.respol.2008.11.001.

• Abramo, G., D’Angelo, C.A. (2009). Assessing technical and cost efficiency of research activities: a case study of the Italian university system. Research Evaluation, 18(1), 61-70. DOI: 10.3152/095820209X408869.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2009). Research collaboration and productivity: is there correlation? Higher Education, 57(2), 155-171. DOI: 10.1007/s10734-008-9139-z.

• Abramo, G., D’Angelo, C.A., Caprasecca, A. (2009). Gender differences in research productivity: a bibliometric analysis of the Italian academic system. Scientometrics, 79(3), 517-539. DOI: 10.1007/s11192-007-2046-8.

• Abramo, G., D’Angelo, C.A., Di Costa, F. (2008). Assessment of sectoral aggregation distortion in research productivity measurements. Research Evaluation, 17(2), 111-121. DOI: 10.3152/095820208X280916.

• Abramo, G., D’Angelo, C.A., Pugini, F. (2008). The measurement of Italian universities’ research productivity by a non parametric-bibliometric methodology. Scientometrics, 76 n. (2), 225-244. DOI: 10.1007/s11192-007-1942-2.

• Abramo, G., D’Angelo, C.A. (2007). Measuring science: Irresistible temptations, easy shortcuts and dangerous consequences. Current Science, 93(6), 762-766.

• Abramo, G. (2006). The Technology Transfer of the Italian Public Research System: the Case of the National Research Council of Italy. International Journal of Technology Transfer and Commercialization, 5(4), 338-354.