New Geography reports:
Perhaps no idea is more widely accepted among urban core theorists than the notion that higher population densities lead to more productivity and sustainable economic growth. Yet upon examination, there are less than compelling moorings for the beliefs of what Pittsburgh blogger Jim Russell calls “the density cult,” whose adherents include many planners and urban land speculators.
How politically incorrect:
Let’s start at the top of the urban food chain, the world’s 28 megacities of over 10 million people (which we are defining as areas of continuous urban development, incorporating suburbs and satellite communities). Is greater density the key to great prosperity? For the most part, the world’s densest megacities are the poorest. Take the densest, the Bangladeshi capital of Dhaka. Its 14 million residents are squeezed into an area of 125 square miles, making for a population density of 115,000 per square mile, as reported in the latest edition of Demographia World Urban Areas (which includes estimates for all known urban areas in the world with at least 500,000 residents). Dhaka’s per capita gross domestic product, $3,100, is the lowest of all the world’s megacities.
Another great one from Joel Kotkin.
