There are varying forms of the practice, and can be most easily understood in terms of “economic rent”.

这种做法有多种形式，最容易理解为“经济租金”。

By calculating the wealth of billionaires within those industries, as compared to the overall GDP, the disproportion of “economic rent” becomes clear.

通过计算这些行业中亿万富翁的财富， 与整体 GDP 相比，“经济租金” 的不成比例就变得一目了然。

The medallion system is an artificial method of increasing the “economic rent”, or price, of the service, so that drivers do not have to compete, and the barrier to entry is high.

奖章制度是一种人为增加服务“经济租金”或价格的方法，这样司机就不必竞争，进入门槛很高。