Some bioethicists argue that conscientious objectors in health care should have to justify themselves, just as objectors in the military do. They should have to provide reasons that explain why they should be exempt from offering the services that they find offensive. There are two versions of...

Emissions trading with output-based allocation (OBA) of emissions allowances is gaining popularity as a means to address sectoral equity issues related to the use of market-based instruments in pollution control. Using a dynamic general equilibrium framework, this paper assesses the potential...