供给学派在上世纪七八十年代红极一时,并成功影响了里根和撒切尔政府的经济政策。但作为一门经济学流派,供给学派没有多少实质性贡献,甚至声誉不佳。凯恩斯主义在第二次世界大战后盛行二十多年后,西方主要国家出现了严重的滞胀问题,高失业率和高通胀率并存,同时财政赤字高企。凯恩斯主义理论和政策主要侧重于管理总需求,强调要国家干预的有效性,主张在经济衰退时,实施积极财政政策 The supply school was extremely successful in the seventies and eighties of the last century and succeeded in influencing the economic policies of the Reagan and Thatcher administrations. But as a school of economics, the supply school does not make much substantive contribution or even poor reputation. Keynesianism prevailed more than two decades after the Second World War. Major western countries experienced serious stagflation problems. High unemployment and high inflation coexist and their fiscal deficits are high. Keynesian theories and policies have focused mainly on managing aggregate demand, emphasizing the effectiveness of state intervention and advocating a proactive fiscal policy in times of economic decline