theory of decreasing returns

例句：

1. 1. The economists arguethat the theory of decreasing returns explains whysome industries decline over time.
   经济学家认为递减收益理论解释了为什么有些行业随着时间的推移而衰落。
2. 2.The company's strategy is based onthe theory of decreasing returns, wherebycustomers are more likely to switch to competitorsif they find a better deal elsewhere.
   该公司的战略基于递减收益理论，即如果客户在其他地方找到了更好的交易，他们更有可能转向竞争对手。
3. 3. The researcher proposed anew model to explain how consumer behavior changeswith increasing income, which is consistent withthe theory of decreasing returns.
   研究者提出了一个新的模型来解释随着收入增加消费者行为如何变化，这与递减收益理论是一致的。