Extended utility and DEA models without explicit input

In this paper, we discuss the relationship between multi‐attribute utility theory and data envelopment analysis (DEA) models without explicit inputs (DEA‐WEI), including dual models and some theoretical analysis of DEA‐WEI models. We then propose generic DEA‐WEI models with quadratic utility terms. Finally, we provide illustrative examples to show that DEA‐WEI with suitable quadratic utility terms are able to reflect some value judgments that the standard DEA models cannot.