Viola Asri, Odd-Helge Fjeldstad, Lucas Katera, Samwel Nassary
Miroslav Palanský, Moran Harari
Kanuda Buluba, Tanzania Revenue Authority (TRA); Odd-Helge Fjeldstad, and African Tax Institute (ATI), University of Pretoria; Osama Moeed Nawab, Norwegian School of Economics (NHH); Ingrid Hoem Sjursen; and Vincent Somville (NHH and CMI).