Primary research was conducted with migrant children and young people, employers and recruiters in each
sector in various geographical sites in and around Bangkok and its vicinities; Nakhom Pathom was the
study site for agriculture and Samut Sakhon for fishing. A total of 376 migrants were surveyed with the
same questionnaire in three sectors (agriculture, fishing and manufacturing). Domestic work relied on a
comparison with quantitative data from a previous IPSR study interviewing 320 migrant domestic workers
in Chiang Mai and Tak Provinces. Across all four sectors, some 316 employers were surveyed in Bangkok
and its neighbouring provinces through questionnaires. In addition to this quantitative material, in-depth
interviews were carried out with 97 migrants, 44 employers and 10 recruiters. Field work was conducted
from June to October 2005.