“…Assessing the impact of financial leverage on profitability, the same conclusion is confirmed by the empirical research of Mavromatti et al (2021), Silambarasan & Azhagaiah (2015), Chowdhury et al (2010), Habib (2014), Kumar (2014), Patel (2014), Shahzad et al (2016), Tayyaba (2013); in contrast, experimental evidence for the opposite effect was found by Wieczorek-Kosmala et al (2021), Chen (2020), Zeitun et al (2015); Dawar (2014), Agburuga & Ibanichuka (2016), Pavan Kumar (2017), Sen & Ranjan (2018); Villalonga & Amit (2006). Thus, the empirical evidence indicates a possible positive or negative relationship of financial leverage on profitability, which is a linear function, that is, the slope of the return is constant for all different financial leverage.…”