Urban areas are now home to more than half the population of OECD countries. Megacities like Tokyo with more than 35 million people and Mexico with about 18.5 million, and large agglomerations such as Montreal, Helsinki, Madrid and Stockholm are often called "engines of national growth." They...

Infrastructure systems play a vital role in economic and social development. Demand for infrastructure is set to continue to expand significantly in the decades ahead, driven by major factors of change such as global economic growth, technological progress, climate change, urbanisation and...

Energy, transport, water and telecommunications all are essential to future development and growth. However, infrastructure investment requirements over the coming decades will be massive, running into trillions of dollars. How will the needed investments be financed, given that OECD populations...