“…In particular, this study relies on several bank concentration and financial development measures to address their impact on economic volatility using a sample from OIC countries. Besides a few studies that partially cover some OIC countries (Abojeib, 2017;Smolo, 2019Smolo, , 2020Smolo, Ibrahim, & Dewandaru, 2021), this group of countries has been vastly ignored, although it is attractive for the following reasons. First, developed countries are the primary focus of existing studies, and very few studies focus on developing ones.…”