The world's mega-cities are forming megaregions, which stretch hundreds of miles across countries. As more people and economic activities are expected to continue to concentrate in these regions, countries are developing policies to secure the competitive advantages of these regions necessary for their economic success.

Although existing literature recognizes these trends, little analysis has been carried out at the theoretical level; in particular how and why megaregions form, where they are explicitly located and how they are defined.

This book constitutes a thorough examination of the characteristics of megaregions and reveals current challenges and future opportunities, as well as a guide to developing policies necessary for ensuring future prosperity and sustainable development within them.