The thesis examined the relationship between the Lahu ethnic group at Lahu Mountain in Tak Province and other social groups (the state sector, the Hmong, the Lisu, and the Thai) in the market area of the Lahu in relation to their cultivated land (changes of cultivation culture and patterns) and the village area under the context of physical changes after the state sector developed the areas for land use and promotion of tourism. It was found that tourism development provided the ethnic group with better economic opportunities while adaptations in accordance with changing contexts reflected its attempts to maintain it in the social space. The ethnic identity was presented for marketing incentives rather than for maintaining their identity.
The author summarized four important findings as follows.

1. Adaptation of the ethnic group under the development and conservation rhetoric of the state sector varied according to access to resources and network creation of the ethnic group (pp. 162-164).
2. The relationships of the social groups in the market area were power-oriented (p. 164.
3. In the commercial context, the ethnic identity was presented for marketing purposes.
4. In the perspective of the ethnic group, “the market” represented the stability of their existence in the area (p. 165).