On 28th November OxTalks will move to the new Halo platform and will become 'Oxford Events' (full details are available on the Staff Gateway).
There will be an OxTalks freeze beginning on Friday 14th November. This means you will need to publish any of your known events to OxTalks by then as there will be no facility to publish or edit events in that fortnight. During the freeze, all events will be migrated to the new Oxford Events site. It will still be possible to view events on OxTalks during this time.
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We quantify optimal urban transportation policies in the presence of congestion, network, and environmental externalities. We show theoretically that, beyond externality distortions, a budget constrained social planner introduces additional inefficiencies similar to those of a monopolist. We then move to an empirical analysis of the transportation system in Chicago based on an equilibrium model. To estimate supply and demand, we combine public sources and cellphone location records to construct a novel data set of the universe of public transit, ride-share, taxi, and car trips. Finally, we quantify optimal policies for a battery of scenarios. We find that congestion prices on private cars returns the largest efficiency gains relative to the status quo, but they cause a large, regressive decrease in consumer surplus.
