Fonseca, 2021 states that
Most studies on the political economy of regulating pharmaceuticals are focused on the US and European contexts (Carpenter 2010; Maor 2011; Vogel 2012; Schweitzer & Lu 2018), with few comparative initiatives. We still know very little about the mechanics of pharmaceutical regulation in comparative perspective
I am wondering what do " comparative initiatives " and "comparative perspective" mean in this context? I understand the isolated words themselves but do not understand when matching them together.