We use negligence and strict liability as the basis for environmentalregulations and show that, when jurisdictions compete for firms that engagein environmentally risky behaviour, strict liability implements the sociallyoptimal outcome while simple negligence does not, even if the...

1. We analysed time-series data from populations of red kangaroos (Macropus rufus, Desmarest) inhabiting four areas in the pastoral zone of South Australia. We formulated a set of a priori models to disentangle the relative effects of the covariates: rainfall, harvesting, intraspecific...