This document focuses on four key infrastructure sectors - transportation; water, sanitation, and irrigation; electric power and other energy sources; and telecommunications. The volume has two parts. The papers in Part 1 discuss how five East Asian economies - Hong Kong (China), Republic of Korea, Malaysia, Singapore, and Taiwan (China) - have renovated their infrastructure base over the past five decades in order to foster their transformation into industrial powers. The papers discuss how each economy addressed the functional dimensions of infrastructure development (policymaking mechanisms, institutional, regulatory, and financing arrangements, and ownership and service delivery schemes) and how these economies balanced economic and social development. The papers in Part II explore case studies from India, Japan, and Korea that illuminate the financial, regulatory, organizational, and technological aspects of infrastructure development.