This book examines the relationship between economic development through open economic policies and financial inclusion in ASEAN countries, including ASEAN LDCs such as Cambodia. It carefully analyses the level of financial inclusion in ASEAN member countries and identifies the key gaps and challenges for financial inclusiveness and integration in the region. The research also focuses on the Cambodian economy, where the level of financial openness is the highest in the region, but the level of financial inclusion is amongst the lowest. The book also includes discussion of the financial development of Malaysia and Singapore, as well as FinTech, financial inclusion, and green finance.The key objectives of the book are summarized as follows: (a) To assess the impact of financial liberalization and financial inclusion on economic development in ASEAN member countries; (b) To empirically examine the determinants of financial inclusion in ASEAN; (c) To examine the financial development and financial inclusion of a specific case study of selected ASEAN member states including Cambodia; (d) To examine the importance of financial innovation, such as mobile banking, for financial development and financial inclusiveness in LDC countries such as Cambodia; (e) To develop a new framework for measuring financial inclusion using administrative data; (f) To develop a key policy framework for financial development and inclusion in the new growth path under conditions of global uncertainty.