"In his report “The Virtuous Circle? Sustainable Economics and Taxation in a Time of Austerity”, Stahel states that designing and implementing a tax system which supports and incentivizes material efficiency, sufficiency and prevention may be the biggest challenge for the policymakers of this century. Incentives for prevention have been used in the field of health and safety but not in the field of resource efficiency and emissions into the environment." (Quoted from article)