How do you define and measure research productivity?

摘要: Productivity is the quintessential indicator of efficiency in any production system. It seems it has become a norm bibliometrics to define research productivity as number publications per researcher, distinguishing from impact. In this work we operationalize economic concept for specific context activity and show limits commonly accepted definition. We propose then measurable form through "Fractional Scientific Strength (FSS)", keeping with microeconomic theory production. present methodology measure FSS at various levels analysis: individual, field, discipline, department, institution, region nation. Finally, compare ranking lists Italian universities by two definitions productivity.