Consumers are influenced, not only by prices, but also by how those prices are labelled, and by the policies that undergird those prices. Steps to limit carbon emissions, including putting a “price” or a “limit” on emissions, can be undertaken in a variety of ways, and these policies are...

Title IV of the 1990 Clean Air Act instituted a nationwide system of tradeable pollution permits for sulfur dioxide emitted by electric power plants. This paper asks: What were the cost savings from using a market-based instrument, rather than a more conventional prescriptive approach? Using an...

After twenty years of global negotiations, the world is still far from a comprehensive climate agreement. The "top-down" approach embodied by the Kyoto Protocol has all but stalled, chiefly due to disagreements over levels of ambition and objections to financial transfers. To avoid those...