General Secretary Xi Jinping pointed out: "We must adhere to the strategic focus of expanding domestic demand, closely integrate the promotion of peoples livelihood and consumption, investment in things and investment in people, promote the benign interaction of consumption and investment, supply and demand, and continuously improve the quality and level of the economic, and enhance the endogenous motive force and reliability of the domestic big cycle." The Fourth Plenary Session of the 20th CPC Central Committee proposed in its "uggestions": "Promote the formation of more economic development models that are dominated by domestic demand, consumption-driven, and endogenous growth." The Central Economic Work Conference held at end of last year identified the key tasks for this year's economic work, and "adhering to domestic demand dominance and building a strong domestic market" was listed as the item. At present, China has entered a stage of high-quality development, and the role of consumption is undergoing profound changes: it is not only an important way to meet people's needs for a better life, but also an important force to pull the innovation of supply, promote industrial upgrading, and promote the reorganization of factors, and it is an important handle to deal with the uncertainty of the external environment. Youth consumption is dynamic and potential. It is of great significance to accurately grasp the new characteristics of youth consumption, give play to its unique role in the front-end traction of supply structure and external incentives of the innovation system, so as to achieve a higher level of dynamic balance between supply and demand enhance the endogenous driving force of economic development, and accelerate the construction of a new development pattern.

From the perspective of the basic principles of Marxist political economy, production and consumption are interdependent and mutually restrictive, with production determining and consumption also acting on production. Marx pointed out that "consumption is directly productive," revealing that consumption is not merely an aspect of value realization but is deeply embedded in process of social reproduction. Under new historical conditions, this theory has bred new contemporary significance: consumption can deepen social division of labor through service outsourcing, force industrial innovation through structural upgrading promote knowledge spillover through "third space" interaction, and precipitate data elements through new types of consumption. This transformation indicates that consumption has become an important link in shaping productivity, youth consumption embodying the new growth momentum and innovative promotion contained therein.
The innovative role of youth consumption in production is first reflected in the optimization of human capital allocation service substitution and the improvement of total factor productivity. With the refinement of social division of labor, contemporary youth tend to outsource household production to the market by purchasing services such as house, catering, and distribution, enabling life affairs to achieve higher-efficiency socialized supply and specialized division of labor. This service outsourcing mechanism not only drives the development of modern services and the effective demand for service consumption but also allows youth to have more time and energy to invest in self-improvement and innovation, enhancing the continuity and stability of human capital accumulation. This choice of "exchanging consumption for time" essentially promotes the allocation of labor resources to higher-productivity sectors and accumulates higher-quality human resources for economic growth by the allocation of time.
The innovative impetus of youth consumption is also reflected in accelerating technological iteration and stimulating innovation vitality through demand traction spatial reconfiguration. Young people are often the first to try new products and new business models. From smart wearable devices to generative AI applications, the trend-setting consumption of cuttingedge technology products by young people provides application scenarios for new technologies, accelerates the transformation of scientific and technological achievements into real productive forces, and continuously optimizes and iterates products through-frequency use feedback. At the same time, the emotional value demand generated by young people in fields such as national tide brands and immersive experience promotes the coordinated development of content creativity design and research and development. For example, small-volume and low-threshold products such as trend toys quickly form stable demand and are transmitted to the supply side through "small batch response" and flexible production, promoting the extension of the value chain. In this process, demand signals, product iterations and brand building are mutually reinforcing, driving the supply side to innovation and upgrading in a shorter cycle. In addition, the consumption of "third spaces" such as coffee shops, cultural salons and shared offices has become a place for the dissemin of knowledge and the collision of creativity, extending consumption scenarios into innovation scenarios and injecting sustained momentum into urban economic development.
The innovative impetus of youth consumption is reflected in providing key elements for the digital economy as data producers. In the era of the digital economy, data has become a new type of production factor. As "digital natives" the youth group generates high-value data resources with every click and interaction in the process of online shopping, social entertainment and knowledge payment. A massive amount of data precipitated by this behavior is fed back to the supply side after being depersonalized, cleaned and mined, and has become an important engine for enterprises to optimize production processes, accurately match supply demand, and drive industrial digitalization. As a result, young consumers participate in the value creation process and become an important subject that participates in both consumption and value creation in the chain of the digital economy. In addition, data elements further strengthen the closed-loop mechanism of demand identification, supply response and experience optimization, enabling enterprises to achieve precise R& and personalized services at a lower cost, improve resource allocation efficiency, and promote the digital economy to improve quality and efficiency under the premise of compliance governance.
To better unleash the innovative impetus of young people's consumption on production, it is crucial to incorporate the encouragement of young's consumption into the strategy of expanding domestic demand and to form systematic policy support in terms of efficiency enhancement, innovation-driven, and value transformation. Firstly, focusing on efficiency improvement we should improve the service supply system. It is necessary to improve the quality and accessibility of services such as childcare, housekeeping, elderly care, and health management, improve industry and regulatory mechanisms, and support young people to invest more time and energy in skill enhancement and innovation and creation, so as to consolidate the foundation of growth with higher-level in human capital. Secondly, focusing on innovation-driven, we should optimize the new consumption environment. With the implementation of the "two new" policies as the traction, we should the expansion and quality improvement of new consumption such as intelligent terminals, green and low-carbon, and artificial intelligence, support enterprises to carry out application pilot and scenario co-creation; promote urban renewal and quality improvement of public space, create more high-quality consumption space, and enhance the city's innovative vitality. Thirdly, focusing on value transformation, should strengthen the synergy of data governance and cultural supply. It is necessary to improve personal information protection and platform governance rules, promote the compliance circulation and effective utilization of data elements strengthen copyright protection and original incentives, support the healthy development of new formats such as cultural performance, cultural and creative design, and immersive experience, and promote the transformation of young people' consumption power to the extension of the industrial chain and the leap to the value chain.