Prottoy A. Akbar, Victor Couture, Gilles Duranton, Adam Storeygard, 29 June 2019

Urban transportation in developing countries is prioritised for massive investments, yet little is known about the determinants of urban mobility in these countries. This column applies a methodology for measuring the performance of overall motor vehicle transportation in a city to the 154 largest cities in India. It finds that there are substantial differences in mobility speeds across large Indian cities but that the variation is driven primarily by uncongested mobility, not by congestion delays. This implies that typical policy measures attempting to improve urban mobility are missing the mark altogether.

Gabriel Ahlfeldt, Elisabetta Pietrostefani, 22 February 2019

Most countries pursue policies that implicitly or explicitly aim at promoting ‘compact urban form’, but so far these policies have not been well-grounded in evidence. This column summarises the state of knowledge on the economic effects of density on various economic outcomes. It concludes that densification policies may lead to aggregate welfare gains, but there may be regressive distributional consequences.

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