the impact of Key Opinion Leaders (KOLs) on purchase decisions in the context of Marketing 5.0, incorporating the method, objective, and significance: "A Game-Theoretic Analysis of Key Opinion Leader Influence on Consumer Purchase Behavior in the Age of Marketing 5.0" Method: Game-theoretic modeling, social evolution game theory Objective: Examine the strategic interactions between KOLs, firms, and consumers, and their impact on purchase decisions Significance: Inform marketing strategies and policies in the evolving Marketing 5.0 landscape "Quantifying the Economic Impact of Key Opinion Leader Endorsements: A Structural Econometric Approach to Marketing 5.0" Method: Structural econometric modeling, causal inference Objective: Estimate the causal effect of KOL endorsements on consumer demand and firm revenue Significance: Provide empirical evidence for firms to optimize their KOL marketing investments "Evaluating the Return on Investment of Key Opinion Leader Marketing in the Marketing 5.0 Era: A Cost-Benefit Analysis" Method: Cost-benefit analysis, return on investment (ROI) calculation Objective: Assess the economic viability and profitability of KOL marketing strategies Significance: Guide firms in allocating marketing resources efficiently in the Marketing 5.0 context "Exploring the Dynamics of Key Opinion Leader Influence and Consumer Trust in Marketing 5.0: An Agent-Based Modeling Approach" Method: Agent-based modeling, simulation Objective: Investigate the complex interactions between KOL influence, consumer trust, and purchase decisions Significance: Provide insights into the evolution of consumer behavior and market dynamics in Marketing 5.0 "Optimizing Key Opinion Leader Selection and Engagement Strategies for Maximizing Marketing ROI in the Marketing 5.0 Paradigm" Method: Optimization modeling, machine learning Objective: Develop algorithms and models to identify and leverage the most effective KOLs for marketing campaigns Significance: Enhance the efficiency and effectiveness of KOL marketing strategies in the Marketing 5.0 context