pure economic rent

例句：

1. 1. The landlord's pure economicrent is the primary source of his income.
   房东的纯经济租金是他主要的收入来源。
2. 2.The company's investment in new technologyhas resulted in a significant increase in pureeconomic rent.
   公司对新技术的投资导致了显著的经济租金增加。
3. 3. The government's decision totax the wealthy will likely lead to adecrease in pure economic rent for the poor.
   政府决定对富人征税可能会导致穷人的经济租金减少。