Aparicio, Juan; Kapelko, Magdalena; Ortiz, Lidia - 2022
considers the imprecise nature of CSR data through the fuzzy data envelopment analysis (FDEA) method and further extends it by …. In addition, the new method deals with zero or negative values for inputs and/or outputs of the data. The empirical …, and other) over the period 2014–2016. Two main results are found with this data. First, the study shows that fuzzy dynamic …