• Knowledge-centered explanations of selling effectiveness unify studies on declarative knowledge, knowledge structures about customers, and selling competencies as primary determinants of performance [1], [7], [10], [20].

• Motivation and development across career stages interact with organizational socialization and commitment to shape salesperson attitudes, retention, and performance, suggesting need for stage-aware management [4], [9], [8], [11].

• Supervisory control—balancing behavior- and outcome-based systems—along with supervisory and ethical considerations, modulates salesperson performance across contexts [3], [17], [12], [14].

• Quantitative analysis of selling performance, forecasting, and compensation demonstrates the role of models and empirical evidence in guiding compensation design and sales management [6], [18], [13], [16].

• Contextual factors, including selling situations and vertical exchange contexts, moderate relationships between traits and outcomes, highlighting environment as a key driver of observed effects [5], [14].