The paper takes a scientometric approach to measure the change in research productivity of Italian academics before the COVID-19 pandemic outbreak. We propose a composite output/input bibliometric indicator and apply it at the field level, conducting a longitudinal analysis. Although the number of academics in the national academic system has decreased, we register very strong growth in both the number of publications and their scholarly impact. The growth in productivity, with only rare exceptions, crosses almost all fields. However, in areas that are traditionally very internationalized (Biology, Physics, and Chemistry), growth is less sustained than overall average, and also the variability of productivity across fields seems reduced. The main reason for this detail would be the smaller margins for improvement in the fields that had already reached high international standing. What emerges from the analysis goes counter to some alarms of declining scientific productivity at the global level. The Italian case is partly explained by the historic adoption of policies aimed at strengthening competitive mechanisms, in particular through the introduction of systems of performance-based research funding, and bibliometric accreditation for professorship.