“…When analyzing the influence politicians have over agencies, other studies have focused on how politicians intervene in the daily activities of regulators according to or in spite of legal restrictions (Ennser-Jedenastik, 2015;Fernández-i-Marín, Jordana, & Bianculli, 2016;Hanretty & Koop, 2013;Maggetti, 2007;Thatcher, 2005). This article adds to the existing work on institutional change (Di Mascio, Maggetti, & Natalini, 2018;Maggetti, 2014) and the diachronic evolution of formal independence of competition authorities (Guidi, 2015) not only by increasing the number of observations and sectors compared in the research, but also by testing the pertinence of previously tested hypotheses. If lawmakers reform the laws governing agencies, this suggests that de jure independence still plays a relevant role as an instrument of control, in addition to politicization or other factors.…”