[名词解释] 贸易可能性曲线(Trading possibilities curve)
[主观题]生产可能性曲线(Production possibilities curve)
[名词解释] 生产可能性曲线(Production possibilities curve)
[主观题]效用可能性曲线(Utility of possibility curve)
[名词解释] 效用可能性曲线(Utility of possibility curve)
[试题]什么是机会成本、生产可能性曲线?生产可能性曲线形状为何凹向原点?