This Palgrave Pivot empirically analyzes the role of conventional and interest-free Islamic banking in the growth process of developing Islamic nations. After explaining the theoretical background of this dual banking system structure, the book then empirically analyzes growth in a variety of sectors - such as agriculture, manufacturing, and tourism - in the predominantly Muslim countries of Turkey, Malaysia, Indonesia, and Qatar. Finally, the book concludes with a detailed comparison of policy efficiency surrounding the dual bank structure, providing advice from more successful countries that can be applied to those still struggling to find a balance.