Nick Muller, a visiting professor at Carnegie Mellon University, responds to a listener who wonders if a carbon tax is a better solution than a cap-and-trade program.

Nick Muller, a visiting professor at Carnegie Mellon University explains how environmental policies adversely affect firms that use coal.

Nick Muller, a visiting professor at Carnegie Mellon University explains whether Gross Domestic Product is a good way to gauge the effects of environmental policy.

Are regulations really necessary to address environmental issues, or can they be addressed by the market? Nick Muller, a visiting professor at Carnegie Mellon, explains how environmental issues are addressed by the market – and how they’re not.