This paper investigates the fragmentation of the EU innovation system in the field of renewable energy sources (RES) by estimating the intensity and direction of knowledge spillovers over the years 1985-2010. We modify the original double exponential knowledge diffusion model proposed by...

Despite the remarkable growth in frontier technology adoption (FTR) in the Global South, empirical evidence concerning their socioeconomic impacts in the context of Africa is hard to find. This study, therefore, employs macro data for a sample of 39 African countries to bridge three pressing...