Guede-Cid, Rocío; Rodas-Alfaya, Leticia; Leguey … - In: Journal of open innovation : technology, market, and … 7 (2021) 1/62, pp. 1-17
envelopment analysis (DEA) is applied in order to obtain an efficiency score. To achieve a more comprehensive evaluation, a large … discriminatory power of DEA. To avoid this effect, we first apply PCA to separately obtain the input and output main factors. We then … apply DEA to the new variables. The PCA-DEA model allows us to identify 5 efficient sectors out of 42. If only DEA were …