Over the past 60 years, urbanisation and cities have fundamentally transformed the social, economic and political geography of West Africa. The number of people living in cities increased from 5 million in 1950 to 133 million in 2010. During the same period, the number of towns and cities with...

The digital economy has created some new measurement challenges for macroeconomic statistics and may have exacerbated some older ones, raising some concerns about the scope and estimation of GDP. Against a backdrop of slowing rates of measured productivity growth, this has raised questions about...