The study looked at what factors affect how much people borrow for mortgages. They found that mortgage lending goes up when the government makes certain economic and housing policies. More mortgage loans are linked to higher apartment prices and more new homes being built. Lower mortgage rates also lead to more borrowing. The study suggests that rules on household debts should focus on certain types of loans that are more risky. It also recommends that banks should have more control over deciding who gets mortgage loans. Lastly, it suggests that banks should have more freedom in setting rules for risky mortgages.