Alongside the legal and institutional reviews described above, the Representative undertook the first in-depth studies of internal displacement, namely: Protecting the Dispossessed (Brookings: 1993); Masses in Flight: The Global Crisis of Internal Displacement (Brookings: 1998) co-authored with Roberta Cohen; The Forsaken People: Case Studies of the Internally Displaced (Brookings: 1998) co-edited with Roberta Cohen.
Parallèlement aux études juridiques institutionnelles décrites plus haut, le Représentant a entrepris les premières études en profondeur des déplacements internes, sous les titres suivants: Protecting the Dispossessed (Brookings: 1993); Masses in Flight: The Global Crisis of Internal Displacement (Brookings: 1998) coécrit avec Roberta Cohen; The Forsaken People: Case Studies of the Internally Displaced (Brookings: 1998) co-édité avec Roberta Cohen.