The Ideas for Growth Session on Infrastructure and Urbanization comprised three presentations focusing on cases in Delhi, Beijing and Brazil. The slideshow here includes the presentations from Abhijit Banerjee (MIT Department of Economics) on 'The effect of a voter mobilization campaign on the delivery of urban public goods: evidence from Delhi' and from Matt Kahn (UCLA) on 'Can Government Investment in Urban Public Goods Hurt the Poor? Evidence from Beijing'. N.K. Singh, Member of Parliament (India) was the discussant.