rwhite1)certificates(Vine&Hamrin,2008)andtheUKCRCEnergyEfficiencyScheme.Thelatterisan(plexpieceofregulationaimedatbring-ingenergyefficiencytotheattentionofseniormanagement.Anintriguingfeatureistheuseofreputa-tionalincentives:participatingfirmsarerankedinapubliclyavailableleaguetable.Theideaisnotnew-theWorldBank(1999)highlightedtheroleofpublicopinionasaninformalregulator1overadecadeago-butitremainspowerfultoday.Particularlyconsumer-facingbusinessesareasconcernedabouttheirreputationastheyareaboutcosts.Theneedforlifestyleandbehaviourchangesisnotconfinedtoenergyuse.arsorrenewableheat.Typically,thishastakentheformoffinancialincentives(e.g.theUK'ars).Lesswellprovenaretheeffectsofpublicinformationandadvertisingcampaigns,althoughformoredifficultadjustments(e.g.ineatinganddrivinghabits),eptability.