Mobile encounters: Bus 5A as a cross-cultural meeting place Acknowledgements This paper was first presented to the Networked Urban Mobility Conference in Denmark in November 2014. We thank the participants in our session for a fruitful discussion. We also thank the Danish Research Council for supporting the project.

Airbnb is commonly seen as emblematic of the disruptive forces of peer-to-peer platforms, and often attracts attention due to its relationship to existing socioinstitutional frameworks. This paper investigates how existing societal structures are navigated, remade or challenged through Airbnb hosting. In taking a performative approach to the economic forms found in collaborative economies, this paper introduces a novel way of thinking about such changes. In examining performances of Airbnb hosts performances this paper endeavours to move beyond distinctions of commercial, cultural and private, but rather perceives such categories as performatively constructed through ongoing framings. Through 33 qualitative interviews with hosts in Copenhagen, Denmark and Philadelphia, USA, this paper explores how hosting becomes entangled with social and institutional frameworks through host performances. Firstly, the paper explores host strategies for navigating and making sense of local legislation. Secondly, the paper moves to the theme of taxation and discusses how hosts balance public obligations with personal profit. Finally, the paper addresses how hosting is negotiated in relation to neighbour relations and implications for local communities. The paper contributes with insights into how Airbnb hosting is transforming urban landscapes, as well as discussions on the heterogeneity of economies.

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A predictable byproduct o f any 'successful' mobility system is the breakdown and destruction of once desired, fashionable, shiny, and useful objects, yet mobilities scholars have largely ignored such issues. In this paper we docum ent and analyze ethnographically neglected and 'half-dead' bikes in Copenhagen as we encounter them in racks, on the pavement, and when the municipality attem pts to clear them out or recycle them. We are theoretically inform ed by ideas that see consum er objects as having a social and m aterial life beyond their initial production and sale. They are constantly in a process, (un)becoming, and marked by that life. W here cycling is norm ally conceived o f as a sustainable and environmentally friendly practice, this study shows that many bikes are ill treated and quickly become waste, and 'm atter out place'.