We investigate the problem of preselecting a subset buyers (also called agents) participating in market so as to optimize performance stable outcomes. consider four scenarios arising from combination two stability notions, namely envy-freeness and agent envy-freeness, with state-of-the-art objective functions social welfare seller’s revenue. When insisting on we prove that cannot be approximate...

This paper will discuss determinants of supplier selection and evaluation, their impact on business key performance indicators with a focus on telecom companies. This research is causal by nature. Interviews were conducted from the heads, managers and specialists of the supply chain department. Data was gathered through questionnaire distributed among the practitioners. Different statistical to...