“…6 For instance, Ballestra and Cecere (2015), Nunes (2009), and Ruas, Dias, and Nunes (2013) use the CEV model for pricing and hedging American-style options. Chung et al (2013aChung et al ( , 2013b, Dias, Nunes, and Ruas (2015), Nunes et al (2015), and Tsai (2014) use the CEV model for pricing and hedging barrier options.…”