其他摘要:According to the law of diminishing marginal utility, the marginal utility when consumers purchase a certain product shows a diminishing trend. As a special product, cultural tourism products, whether is the marginal utility produced during consumption also affected by the law of diminishing marginal utility. This paper takes “Impression Liu Sanjie” as the research object and uses a linear regression equation model to study the marginal utility of tourists “Impression Liu Sanjie” cultural tourism products. The results show that the marginal utility produced by tourists buying the cultural tourism products of “Impression Liu Sanjie” shows an obvious decreasing trend. The main reason is that the cultural tourism products of “Impression Liu Sanjie” lack innovation and strong brand characteristics, the overall scale is small, the positioning is not accurate, etc., affected by the competition of homogenized products in the surrounding area, and the return rate of tourists is low. Moreover, there is a gap between existing products and the development trend of high-end tourism, which cannot meet the needs of tourists for indepth experience and research tourism. Therefore, “Impression Liu Sanjie” needs to intensify innovation, fundamentally solve the problem of diminishing marginal utility, further stabilize the source of tourists and meet the needs of tourists for repeated consumption quality, and realize sustainable tourism development.