Ronald Wall (Institute for Housing and Urban Development Studies, Erasmus University Rotterdam/University of the Witwatersrand, South Africa) in this lecture calls a new paradigm on how to empirically address globalization and urbanization using big data on investment flows between cities worldwide. 

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Marijk Huysman bases her lecture on the importance of accessible and effective urban waste collection services for public health, environmental conditions, productivity and aesthetics of cities. Yet evidence shows that waste services are often failing poor people. She argues that long before the concept of green growth was embraced as an urban development trend, informal waste workers have made a significant economic and environmental contribution to urban centers and also provides a source of income for millions of people worldwide.