Ekonomou, George; Kallioras, Dimitris - In: Economies : open access journal 14 (2026) 2, pp. 1-25
This study investigates technical efficiency scores and performance change patterns by applying the tourism … scores, we regress them on renewable energy sources using panel data. Based on the results, the Eurozone countries' technical … efficiency scores increase by approximately 1% per year on average. On the contrary, productivity growth declines slightly (-0 …