Planning and the so-called ‘sharing’ economy / can shared mobility deliver equity?/ The sharing economy and the ongoing dilemma about how to plan for informality/ regulating platform economies in cities – disrupting the disruption?/ regulatory combat? how the ‘sharing economy’ is disrupting planning practice/ corporatised enforcement: challenges of regulating AirBnB and other platform economies/ nurturing a generative sharing economy for local public goods and service provision