关键词: 服务产品, 劳动价值论, 第三产业

Abstract: Under circumstances of the rise of the third industry, traditional theories on value of labor are faced with the severe challenge of a narrowing scope of application. In response to this challenge, the author explores possible ways to extend the application area to the third industry. Non-material products, non material use value, and theories on value of service are discussed. Thus, the category of social products is expanded to include service products, the category of use value is enlarged to embrace non materialized use value, and the category of value of labor is extended so that the third industry can also be addressed.

Key words: service products, theory on value of labor, the third industry