The researcher examines how managers make decisions about selecting suppliers that use sustainable practices. The focus is on understanding how different ways of thinking (cognitive frames) and the types of performance measurement systems (PMS) used by organizations influence these decisions. Specifically, the study contrasts a business case cognitive frame, which focuses on financial outcomes, with a paradoxical cognitive frame, which considers multiple conflicting aspects like social, environmental, and economic factors. Additionally, it looks at whether having a broad PMS that includes both financial and non-financial measures, as opposed to a narrow PMS focused only on financial measures, affects the sustainability of managers' decisions.