The Catalas Model introduces a novel theoretical framework for understanding dual-role producer-consumer exchanges involving third-party beneficiaries and intermediaries. This study identifies the limitations of traditional frameworks and develops the Catalas Model to capture the complexities of modern market exchanges. The model incorporates the roles of third-party beneficiaries and intermediaries in the exchange process, offering valuable insights into market efficiency, consumer welfare, and overall economic performance. The applicability of the Catalas Model is demonstrated through real-world case studies, showcasing its adaptability across various industries and market scenarios. Furthermore, the research identifies key factors influencing exchange performance and discusses potential policy implications for regulators, businesses, and consumers. This innovative framework contributes to the literature by providing a more comprehensive understanding of intricate producer-consumer relationships in contemporary market exchanges.