[matthewdgreen]

We’re not disagreeing. I’m saying that the tax should be set high enough that it creates the desired behavior, which is to disincentivize the widespread use of polluting plastic bags AND/OR ensure that they’re recycled and don’t wind up in the environment. If you’re charging $.05 per bag and people are just eating the tax and the bags are winding up in wetlands in similar amounts, that means your tax regime isn’t effective. You should either increase the tax or improve the system. My city’s absolute ban is equivalent to setting the tax to infinity, which is one solution that seems to work well.