Transportation engineers are taught that as demand for travel goes up, this decreases not only speed but also the capacity of the road system, a phenomenon known as hypercongestion. We revisit this idea. There is no question that road systems experience periods in which capacity falls. However,...

Economic research on climate change has been crucial in advancing our understanding of the consequences associated with global warming as well as the costs and benefits of the various policies that might reduce emissions of greenhouse gases. As nations work to develop climate policies, economic...

Throughout the developing world, many water distribution systems are unreliable. As a result, it becomes necessary for each household to store its own water as a hedge against this uncertainty. Since arrivals of water are not synchronized across households, serious distributional inefficiencies...