Speed limit is imposed for some purposes: oil saving and safety, for example. This paper proves that none is justified. Speed limit reduces road capacity, or equivalently stated more roads are needed for the same traffic flow. This paper shows how traffic economists have misunderstood the...

This paper studies the impact of speed limits on local air pollution, using a series of date specific speed limit reductions in Oslo over the 2004-2015 period. We find that lowering the speed limit from 80 to 60 km/h reduces travel speed by 5.8 km/h, but we find no effect on local air pollution....

Speed is a salient feature of modern financial markets. This paper studies investors' speed acquisition, alongside their information acquisition. Speed heterogeneity arises in equilibrium, fragmenting the information aggregation process temporally and affecting price informativeness...

In speedboat racing in Japan, women racers participate and compete in races under the same conditions as men, and all individuals are randomly assigned to mixed-gender or single-gender groups for each race. In this paper we use a sample of over 140,000 observations of individual-level racing...

This paper studies the impact of speed limits on local air pollution using a series of datespecific speed limit reductions in Oslo over the 2004-2011 period. We find that lowering the speed limit from 80 to 60 km/h reduces travel speed by 5.8 km/h. However, we find no evidence of reduced air...