“…Experimental studies involve the use of randomized control trials and often show that the costs of formalization outweigh the benefits (Boly, 2017;McCaig and Nanowski, 2017). On the other hand, almost all non-experimental studies which use either cross-sectional analysis (Fajnzylber et al, 2009(Fajnzylber et al, , 2011McKenzie and Sakho, 2010;Monteiro and Assunção, 2012,) or panel data (Boly, 2017;Demenet et al, 2016;Rand and Torm, 2012a) reveal the benefits of formalization. For instance, Rand and Torm (2012a) report an increase in profits of 12 to 16 per cent, Demenet et al (2016) show a growth of 20 per cent in value added while Boly (2017) report an increase in profit and value added of 9 to 11 per cent due to formalization in Viet Nam.…”