I post my answer to Tom Friedman’s piece in this cross-post. Â Many environmental policies seek to increase the quantity of a non-market good such as “clean air” or “clean water”. Â To measure the benefits of such a policy, we need to estimate two separate parameters. Â 1. Â How much will environmental quality improve because of the regulation? Â 2. Â How much do people value this improvement in environmental quality? Â A large number of environmental economists seek to answer these two questions. Â If I could poll Republicans, I would like to ask them to answer these two questions. Â Do those who oppose regulation view government as ineffective at achieving a specific goal or do they reject the importance of the stated goal? Â Or, do they view regulation as part of a cumulative process such Â that an unintended consequence of successful regulation is that this will lead to more regulation and a larger government that displaces free market interactions?