Suppose a political candidate criticizes a government pollution permit policy that she says lets corporations buy and sell the right to pollute. She argues that our right to breathe and the future of our planet require real regulation instead of this type of government policy.

Which of the following describes why most economics would disagree with her statement?

A. Clean air is a fundamental right, and government regulation will allow too much pollution.
B. A free market in tradable pollution permits is typically more efficient than government regulation.
C. The environment is so important that it should be protected as much as possible, regardless of the cost.
D. A corrective tax would result in a more efficient outcome than either tradable permits or government regulation would.

Quick calculate the roi dollar amount and percentage for these example investments. a. you invest $50 in a government bond that says you can redeem it a year later for $55. use the instructions in lesson 3 to calculate the roi dollar amount and percentage. (3.0 points) tip: subtract the initial investment from the total return to get the roi dollar amount. then divide the roi dollar amount by the initial investment, and multiply that number by 100 to get the percentage. b. you invest $200 in stocks and sell them one year later for $230. use the instructions in lesson 3 to calculate the roi dollar amount and percentage. (3.0 points) tip: subtract the initial investment from the total return to get the roi dollar amount. then divide the roi dollar amount by the initial investment, and multiply that number by 100 to get the percentage.