How “Symbiosis” Influences the Connected Response of Group Purchasing Behavior in Green Housing?

Within the framework of the dual-carbon target, it has become imperative to realize the sustainable development of the construction industry. Green housing, as an innovative concept, plays a pivotal role in advancing the emission reduction target by significantly reducing building energy consumption. This study examines the stabilization strategies of individual-group responses to green housing payment behaviors under different scenarios and analyzes four evolutionary game models: individual independent and symbiotic purchases under policy incentives and without policy incentives, to explore consumer acceptance of green housing and symbiosis-driven behaviors that promote the popularity and market expansion of green housing. The results of the study show that the benefits of symbiotic purchasing (including economic and non-economic advantages) exceed independent purchasing regardless of the presence or absence of policy incentives. From a symbiotic perspective, economic incentives can prompt independent individuals to increase their willingness to pay for green housing, thereby accelerating the popularization of green housing. In addition, lowering interpersonal costs accelerates symbiotic purchasing, and incentives further facilitate the process. Additionally, reducing interpersonal costs accelerates the formation of symbiotic purchases, while incentive policies further enhance this process. Based on these conclusions, comprehensive policy recommendations are proposed to promote green housing adoption and ensure sustainable development in the construction industry.