In this episode, Michele Acuto and Caitlin Morrissey discuss with Sergio Montero, a professor at the University of Toronto Scarborough, his journey from a small town in Spain to his work on urban solutions and global best practices. Montero highlights the circulation of urban policies, particularly Bogotá’s transportation innovations, and the role of philanthropies like Bloomberg Philanthropies in promoting these models. He also discusses the concept of a posteriori comparisons, which allows for a global perspective on urban issues by comparing cities like Bogotá and Porto Alegre. The conversation underscores the complexities and nuances of urban studies and the importance of diverse perspectives in theorising urban phenomena. Show notes are available on the Urban Studies Podcast website: urbanstudiesonline.com/podcast