Earlier quoted context omitted.
> Since when has raising the price of anything changed anyone’s behavior? Making water 2x more expensive probably isn't going to cause you to drink less water, but it might make you consider a variety of water conservation measures, like low flow showers, dishwashers, or low water landscaping.
If your water bill is $100 is $200 really going to change what you do much? Unlikely, unless you're already poor.
My wife will still be very angry if water bill goes up from $100 to $200.
Price anchoring is a really powerful tool: you can cut down plastic bag usage drastically by simply mandating that they should be sold at 10 cents.