How Do Banks Make Money?

Original article

Without a doubt, the most important source of income is the net interest margin, and risk control that reduces bad debt risk is crucial.

You can check out the original article—it's pretty good. Overall, China has effectively shackled banks, reducing their profitability. The greater the responsibility a bank bears, the more constraints it faces, the less leverage it uses, the more cautious its style becomes, and the more it actively sacrifices its own profitability.