• Core relational constructs unify marketing outcomes: commitment and trust as mediators, with relationship quality and long-term orientation predicting sustainable exchanges across services and consumer contexts [5], [7], [14], [16], [15].

• Channel governance as relational architecture: empirical work on distributor–manufacturer partnerships, pledges, governance mechanisms, and influence strategies shaping durable buyer–seller relationships [2], [18], [13], [4].

• Paradigmatic shift from transactional/mix-focused to relational approaches across service and consumer marketing; evolution of the marketing paradigm with theoretical framing and emphasis on relationships [8], [1], [6], [10], [16].

• Customer-centric value creation and intimacy: niche exploitation, customer intimacy as value discipline, and integration of quality and service in relational strategies [19], [9], [12], [16].

• Measurement, norms, pledges, and governance signals shaping relational behavior: metrics, transaction-cost considerations, and governance perspectives in channel relationships [3], [13], [4], [18], [14].