This paper provides rigorous analytical discussions of the dual-role factor classification problem in Data Envelopment Analysis (DEA). We study two approaches taking opposite directions: one (the conventional and popular approach) clarifies the input/output roles prior to analysis, while the...

Research & development (R&D) performance has been a competitive advantage for high-tech industries. This paper presents an empirical study in which we used Data Envelopment Analysis (DEA) to evaluate the R&D performance of 31 computers and peripherals firms located at Hsinchu Science-based...