“…They are useful in many areas such as insurance (Bortoluzzo et al, 2011), microbiology (Rocha et al, 2017), credit risk (Tong et al, 2016), hydrology (Serinaldi & Kilsby, 2014), biodiversity (Rubec et al, 2016) and geology (DeCarlo, 2015). When the support of the response variable is the interval [0; ∞[, some possible models that can be used are the zero adjusted gamma regression model (Tong et al, 2013), the zero adjusted gaussian inverse regression model (Heller et al, 2006) and the zero adjusted Birnbaum-Saunders regression model (Tomazella et al, 2018). The zero adjusted beta regression model (Cook et al, 2008;Ospina & Ferrari, 2012), also known as the zero inflated beta regression model, is usually used when the response variable assumes values in the interval [0; 1[.…”