上じょう級きゅう財ざいじょうきゅうざいMeanings1nounsuperior goodsEconomics term for goods whose demand increases more than proportionally as income rises; contrast with inferior goods.経けい済ざい学がくでは、高こう級きゅう品ひんは上じょう級きゅう財ざいに分ぶん類るいさ