Jurisdictions employing emissions trading systems (ETSs) to control emissions often utilize other environmental or energy policies as well, including policies to support renewable energy and reduce energy consumption. Interactions with these other policies lead to different outcomes from what...

This paper assesses the impacts across US household income groups of carbon taxes of various designs. We consider both the source-side impacts (reflecting how policies affect nominal wage, capital, and transfer incomes) and the use-side impacts (reflecting how policies alter prices of goods and...

This paper uses analytical and numerical general equilibrium models to study the costs of achieving pollution reductions under a range of environmental policy instruments in a second-best setting with pre-existing factor taxes. We compare the costs and efficiency impacts of emissions taxes,...

Economists often regard broad-based carbon pricing (whether in the form of a carbon tax or cap and trade) as the most efficient policy to reduce carbon dioxide emissions. Relative to a narrower policy that exempts some emissions sources, a broader policy is often favored because it can exploit...

China's recently launched CO2 emissions trading system, already the world's largest, aims to contribute importantly toward global reductions in greenhouse gas emissions. The system, a tradable performance standard (TPS), differs importantly from cap and trade (C&T), the principal emissions...

This paper explores how the costs of meeting given aggregate targets for pollution emissions change with the imposition of the requirement that key pollution-related industries be compensated for potential losses of profit from the pollution regulation. Using analytically and numerically solved...

Fuel-economy standards for new vehicles are a primary policy instrument in many countries to reduce the carbon footprint of the transportation sector. These standards have many channels of costs and benefit, impacting sales, composition, vehicle attributes, miles traveled and externalities in...

What is a feasible and efficient policy to regulate air pollution from vehicles? A Pigouvian tax is technologically infeasible. Most countries instead rely on exhaust standards that limit air pollution emissions per mile for new vehicles. We assess the effectiveness and efficiency of these...

The marginal cost of electricity fluctuates hour-by-hour, yet retail customers typically face flat prices. Using data from all seven US wholesale markets and a new method to evaluate alternative rates set in advance that accounts for equilibrium price effects, we estimate efficiency gains from...

Fourteen U.S. states recently pledged to adopt limits on greenhouse gases (GHGs) per mile of light-duty automobiles. Previous analyses predicted this action would significantly reduce emissions from new cars in these states, but ignored possible offsetting emissions increases from policy-induced...