Investigating the contemporary dynamics of stakeholder relations, this study delves into the escalating pressures faced by truck owner-operators, specifically addressing instances of abusive behavior from buyers (BAB). This paper seeks to elucidate the factors that influence the prevalence and manifestation of buyer abuse across diverse business contexts. This approach not only extends the current academic discourse but also contributes to practical implications for truck owner-operators and policy makers alike. The findings derived from this research, guided by multiple authoritative sources, provide a robust analytical framework for navigating the intricate interplay between stakeholder pressures, contractual arrangements, and other factors (Kim et al., 2022; Johnson, 2021). It is noteworthy that the correlations between Buyer Abusive Behavior (BAB) with and without a contract are based on insights derived from a supplementary analysis within Kim's seminal paper, adding a layer of specificity to the study's methodology. Drawing insights from a sample of 122 owner-operation drivers in Germany, the research systematically investigates both contractual and non-contractual manifestations of BAB through a rigorous methodology using the cluster sampling method and questionnaires. This additional detail enhances the depth and reliability of our analytical approach. Built upon the Korean study model, this research’s preliminary results deviate from the first research model, revealing nuanced distinctions inherent to the German truck-owner-operators.