Failures(M-Grow-Hill,微观经济学,王秋石)

Copyright©2001byTheMcGraw-HillCompanies,Inc.AllrightsresMcGraw-Hill/IrwinGovernmentGovernmentPolicyandMarketPolicyandMarketFailuresFailuresChapter15Chapter15Copyright©2001byTheMcGraw-HillCompanies,Inc.AllrightsresMcGraw-Hill/Irwin15-2LaugherCurveLaugherCurveQ.Howmanyeconomistsdoesittaketoscrewinalightbulb?A.Eight.Onetoscrewitinandseventoholdeverythingelseconstant.Copyright©2001byTheMcGraw-Hi...