Transnational migration and diaspora in Thailand border areas of Mae Sai and Chiang Khong / Betti Rosita Sari -- Border development in Thailand, its history and policy / Lamijo -- Transnational migration in Thailand border area, case study Mae Sai and Chiang Khong / Amorisa Wiratri -- Diaspora and ethnic identities in the border areas of Thailand-Myanmar and Thailand-Laos / Yekti Maunati -- Trade activities in Thailand border area, case study Mae Sai and Chiang Khong / Betti Rosita Sari