中级微观经济学题目
TheUnitedStatesimportsabouthalfofitspetroleumneeds.SupposethattherestoftheoilproducersarewillingtosupplyasmuchoilastheUnitedStateswantsataconstantpriceof$25abarrel.Whatwouldhappentothepriceofdomesticoilifataxof$5abarrelwereplacedonforeignoil?