Housing loan market vibrates according to the policies, such as
- LTV rate, for example, if must pay 20% downpayment, LTV rate would be 80%
- interest rate, for example, lifting the loan rate, the market shall shrink
- loan tenor, for example, if a new policy limits Housing loan to 10 years, the market will change drastically
- I assume GDP growth rate, house pricing rate, and inflation rate also play a role here.
How to set up a model to estimate the housing loan market?
To be more complex, if policies set differenet set of limits on LTV rate, loan rate, loan tenor, for a family's first, 2nd, and 3rd real estate, is it possible to also cover the structure change?
It's a big topic, I hope someone with the experience could suggest where could I start, for example some proven industry model, or some book that summarized the relative models.