Santiago was one of the first cities outside the OECD to implement a tradable permit program to control air pollution. This article looks closely at the program

Thomas Sterner speech at the University of Gothenburg on climate change.

This article analyzes the effects of the invasion of water hyacinth on fishing in Lake Victoria. The authors built two fairly standard Schaefer-type models that have one innovation: They allow the water hyacinth abundance to affect catchability.