This book addresses the measurement of regional integration compared with the engagement with the global economy and how this influences the aggregate behavior of the economies. The book also considers the financial sector and the efficiency and performance of banking in the region. It discusses whether, in the current crisis, the banking sector was an important channel of financial shock into real behavior. It includes a study on corporate sector. The book also discusses the type of finance used by firms, its impact on their performance, and ownership structure influence over the productivity growth. This book is useful for policy recommendation and future research agenda for further economic integration in East Asia.