The paper's main objective is to analyse the impact of work investment on performance. The research involved administering an online questionnaire, which collected information on work effort, perceived performance, burnout and job satisfaction. The study was conducted on a group of 313...

Background: This study aims to identify how and if strategic procurement 4.0 performance influences competitiveness under circular economy conditions. In this regard, to achieve the aim of the study, we examine the moderating and mediating effects of strategic procurement 4.0 performance. In...