This book is dedicated to the ongoing debate on the nature of the relationship between financial depth and economic growth. It addresses the theoretical underpinnings of financial depth and reflects the changes in the nature of financial depth-economic growth nexus before and after the GFC. The distinctions between the financial depth-economic growth nexus in Ukraine and other countries, based on their income level, are identified. The dynamics and structure of Ukraine's state lending and debt are examined in order to show mutual connections between financial depth, economic growth and debt burden. The empirical study of the financial depth-economic growth nexus has allowed revealing that "too much finance" hypothesis does not hold for Ukraine, meanwhile, confirming the existence of the relationship between financial openness and financial deepening. The study is concluded with the analysis of the impact of war on the financial depth-economic growth nexus in Ukraine. This book will be a valuable resource for graduate students and academic researchers whose focus is on the financial and economic development.