With the tools of productionpossibilitycurve and budget line, the paper analyzes the necessary factors of the producer equilibrium state realized by rural household.
以生产可能性曲线与收入预算线为工具，分析农户达到生产者均衡状态的必要条件。
2
With reference to the productionpossibilitycurve diagram you drew for Question 1B, explain the Economics concepts of scarcity, choice and increasing opportunity costs.
从问题1的生产可能性曲线图，解释经济学的稀缺性，选择和增加机会成本的概念。
3
Irving Fisher also drew on the curve, a productionpossibility frontier for society, which he made downward-curved.