with Cyrille Viossat and Pierre Bloch*

A carbon tax is the favorite policy of many people concerned about climate change.

A carbon tax works by tilting investment and spending towards lower carbon emitting choices. A carbon tax makes high emitting goods and services more expensive so encourages people to shift spending toward low carbon substitutes. The planet benefits by the difference in emissions between the original item and its lower emitting substitute. For example, a carbon tax on gasoline nudges people to buy more fuel-efficient cars or to drive less or take public transport. …

John Byrd

I teach MBA classes in the Finance and Managing for Sustainability programs at the Business School at the University of Colorado Denver. I live in Durango, CO.

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