简介：Mostenvironmentalissuesandpolicydesigningareuncertainandirreversible;therefore,thetimingofenvironmentalpolicyimplementationbecomesespeciallyimportant.Thispaperestablishesarandomdynamicprogrammingmodelandanalyzestheoptimaltimingproblemsinenvironmentalpolicyunderuncertainvariables.Thismodelresultsindicatethattwovariableshaveasignificantimpactonthetimingofenvironmentalpolicyimplementationandtheyworkinoppositedirecfons:ononehand,themoreuncertaintheeconomyis,thehigherthecostofpoliciesimplementationwillbe,andconsequentlytheincentivetoimmediatelyadoptthepolicywillbestronger.Ontheotherhand,thehighertheuncertaintyoftheenvironmentis,thestrongertheirreversibilityofecologicalharmcausedbypollutantsperunitwillbe.Therefore,thegovernmentshouldimplementnewenvironmentalpoliciesasearlyaspossibleinordertogainmoreecologicalbenefits.

简介：Inrecentyears,thefrequentoccurrencesofmarineoilspillshavealreadybecomeoneofthemajorreasonsthreateningthemarineecologicalsafetyofChina.Intheeventofoilspill,oth-erthantakingthenecessaryemergentmeasuresaimingspecificallyatthedamagetothemarineecologyandenvironment,usinglegalmeanstoassurethatthedamageliabilitiesarebornebytherespon-siblepersonstoprotectthenationalinterestsarealsoveryneces-sary.Thispaperadvancesfiverecommendationsregardingthedevelopmentofasystemforecologicallegalcompensationsfromthestandpointofthecurrentstatusoflegislationandexecutionofthelawsoncompensationofoilspillpollutingmarineecosystem.Thesefiverecommendationsinclude:determinationofthestatusofjuristicactioninmarineecologicalandenvironmentalcompen-sationsinaccordancewiththelaws,determinationofplaintiffofmarineecologicalandenvironmentalcompensationsinaccordancewiththelaws,determinationofthefourbasicprinciplesinthele-galactionsofmarineecologicalandenvironmentalcompensationsinaccordancewiththelaws,determinationofassessmenttechnicalstandardofmarineecologicalandenvironmentaldamagesinac-cordancewiththelaws,anddeterminationofthescopeofmarineecologicalandenvironmentalcompensationsinaccordancewiththelaws.

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