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Latin American scholars have recently discussed the privatization of urban public space. A fundamental aspect of this process is the disintegration of communities because it often targets and affects a peculiarly Latin American kind of public space: the plaza. Plazas have traditionally functioned as cultural centres in Latin American cites. They are central meeting points for political groups, sites of civic expression and public resistance, as well as places to purchase relatively cheap goods and services. Plazas are, therefore, sites in which families, neighbours, and political organizations mingle, interact, and also challenge authority. This paper uses these sorts of insights on public space in Latin America to develop a conceptualization of the plaza as a community centre. However, the multiple practices and interactions that occur in these forms of public space have been disrupted by state-led strategies which seek to privatize and sanitize public space, thereby disrupting—or even destroying—the community centre. I use primary materials on Mexico City's Historic centre and its plaza to explore the ways in which this specific type of urban public space has been affected physically and symbolically by a regeneration scheme known as the Programa de Rescate.

The socio-legal technology of licensing is one of the primary tools governments use to manage spaces and practices deemed risky or threatening to public order. Licensing requirements thus play a crucial role in shaping routine experiences in public space as well as the trajectories of emerging forms of public life. Yet licensing laws have largely been ignored in critical urban scholarship: too often concerned with the interpretation and critique of popular practices and public spaces, the mundane operations of urban governance are often left to practitioners and policy researchers. This article demonstrates how paying closer attention to licensure can provide valuable and unexpected insights into matters of social equality, urban amenity and economic opportunity. It does so through a comparative inquiry into practices of street food vending in New York City, Seattle, and Portland, Oregon. Drawing on ethnographic study and interviews, the article demonstrates how licensing can be involved in the production of quite peculiar and unjust geographies of practice, but also how shifts in popular culture can force a reconsideration of taken-for- granted laws. In conclusion, it is argued that a focus on licensing offers a productive pathway for new forms of critical urban research and provides a potential point of leverage in efforts to configure better and more democratic forms of urban public life.

Problem, research strategy, and findings: Around the globe, streets and sidewalks in cities are being contested as spaces that should be used for more than transportation. This article challenges our understanding of both property rights and public space by applying a property rights framework to situate sidewalk use debates. It analyzes and maps the sidewalk property regimes of Ho Chi Minh City, Vietnam, through a novel integration of surveying and ethnography. The case illuminates the feasibility of a mixed-use sidewalk that can be shared between various kinds of uses and users. A mixed-use sidewalk that is both cooperative and livable is possible if planners incorporate time into planning space in order to expand the sidewalk's flexibility and if local society can renarrate and enforce new legitimacies on the sidewalk. Takeaway for practice: Sidewalk space deserves more attention as an important public space. In our era of historic urbanization, we should reconceive sidewalks as a mixed-use space rather than an exclusively pedestrian zone. Moreover, North American planners would benefit from engaging with public space experiments happening in cities in the developing world. Research support: This research was supported by MIT's School of Architecture and Planning, Department of Urban Studies and Planning, and the Undergraduate Research Opportunities Program.