uncertainty. To overcome this, the present work attempts to explore vague set theory to deal with uncertainties in the supplier … application of vague set theory has also been proved as a better option to work under uncertain (fuzzy) decision …-making environment in comparison to fuzzy set theory. Originality/value – The application of vague set theory in multi-criteria group …

organizations are recognizing the importance of SRA for the optimal use of scarce resources. In this paper, a vague set theory based …