Growing cities bad for productivity

Research by the the Australian Housing and Urban Research Institute (AHURI) has found that cities with less than 3 million people experience better productivity and economic growth than larger cities:

The Australian Housing and Urban Research Institute-commissioned report has found a causal relationship between economic growth and productivity slowdown, and unaffordable housing and traffic congestion in some of Australia’s biggest cities…

AHURI’s latest research found a positive relationship between population and income was conditional on city population levels with cities of up to three million people more likely to experience economic growth than larger cities.