“…One of the most common methods for measuring wage discrimination among different groups of people is the Oaxaca-Blinder decomposition technique. A number of articles by various authors address the wage gap that exists, for example, between males and females (Ashraf and Ashraf, 1993;Regan and Oaxaca, 2009;Nakavachara, 2010;Lechmann and Schnabel, 2012;Boll, Rossen, and Wolf, 2017), different age groups (Gannon and Munley, 2009;Mann and Wittenburg, 2015), ethnic minorities and the rest of the population (Ashraf, 1995;Fearon and Wald, 2011;Birch and Marshall, 2018), or between persons with and without disabilities (Johnson and Lambrinos, 1985;Baldwin and Johnson, 1994, 1995, 2000. The Oaxaca-Blinder decomposition technique consists in dividing the wage gap into two components: the component which can be explained by the employee's socio-occupational profile (and which in turn affects productivity), and the unexplained component, which cannot be explained by their profile and which may be due to factors such as discrimination (Blinder, 1973;Oaxaca, 1973).…”