... Many studies find mixed impacts of WOCBs on accounting performance because they use different measures of WOCBs (Farag & Mallin, 2017;Gordini & Rancati, 2017) and accounting performance (Haslam, Ryan, Kulich, Trojanowski, & Atkins, 2010;Solakoglu, 2013;Muravyev, 2017). Furthermore, a few studies provide evidence for an inverted N-shaped relationship (or inverted U-shaped, if we ignore the lower part of the women proportion on board, which shows negative relationship) between women board members and accounting performance (Pathan & Faff, 2013;Gröschl & Arcot, 2014;Wu, Yao, & Muhammad, 2017). Indeed, several studies supporting the critical mass theory (Torchia et al., 2011) find that the relationship between WOCBs and accounting performance has changed from negative to positive in firms that have increased their WOCBs proportion from below to equal or more than 30% (e.g., Joecks et al., 2013;Arena et al., 2015;Elmagrhi, Ntim, Malagila, Fosu, & Tunyi, 2018;Wiley & Monllor-Tormos, 2018). ...