During the second half of the twentieth century, most countries experienced exceptional demographic growth, while some traditional cities underwent physical expansion, overflowing their historical jurisdictional boundaries. ...

This paper attempts to add evidence on the issue of disparities in economic efficiency among the metropolitan economies in the period 1998-2008 by examining the differences and evolution of efficiency. The analysis includes ...

One of the main facts about contemporary urbanization consists on the accelerated increase in the number of megacities. Megacities have been defined by the United Nations (UN) as urban concentrations containing more than ...