Grundlagen -- Aufbau, Aufgabe und Ablauf von Beschaffungsportfolios -- Relevante Beschaffungsportfolios -- Kritik an Portfolios -- Referenzmodell zur Auswahl eines geeigneten Beschaffungsportfolios -- Wege zur Optimierung der Verwendung von Portfolios.

Purpose – Although practitioners and scholars alike embrace service customization as a possibly powerful management instrument, its impact on customer relationships as well as contingencies for its effective application are not well understood. Drawing from relationship marketing and exchange...

Purpose: The enabling technologies that emerged from information technology (IT) have had a considerable influence upon the development of marketing tools, and marketing has become digitalized by adopting these technologies over time. The purpose of this paper is to demonstrate the impacts of...

Purpose: The purpose of this study is threefold: (1) to propose partial least squares path modeling (PLS-PM) as a way to estimate models containing composites of composites and to compare the performance of the PLS-PM approaches in this context, (2) to provide and evaluate two testing...

Purpose: The purpose of this paper is to investigate selling actors in multi-actor sales ecosystems. When selling actors start taking over tasks that were formerly performed by salespeople, the distribution of tasks, allocation of responsibilities and finally the role of the salespeople...

Purpose: The purpose of this study is to identify the practices used by service providers to manage the customer service experience (CSE) across multiple phases of the customer journey in a business-to-business (B2B) setting. Design/methodology/approach: This study comprises an ethnography that...

Purpose: One popular method to assess discriminant validity in structural equation modeling is the heterotrait-monotrait ratio of correlations (HTMT). However, the HTMT assumes tau-equivalent measurement models, which are unlikely to hold for most empirical studies. To relax this assumption,...