“…A number of papers, including Miles and Ezzell (1980), Miles and Ezzell (1985), Conine (1980), R. D. Cohen (2003), Arzac and Glosten (2005), Fieten et al (2005), Taggart (1991) and Cooper and Nyborg (2006) have criticised the validity of Hamada's model unrealistic assumptions and provided some solutions. However, both arguments, in favour of Hamada formula or against it, have been largely limited to theoretical issues with little consensus, making little reference to the empirical implications of this conundrum.…”