Romanian Parliament is [trying to adopt a law to cap the interest rates](https://www.romania-insider.com/draft-bill-limit-interest-rates-loans/) for all loans:

> 
> According to the form adopted by the Senate’s committees, the annual
>  effective interest rate, also known as DAE, will be limited to maximum
>  2.5 times the legal interest rate for mortgage loans, and to 18% per year for consumer loans
> 
> 
> Representatives of the banking sector who attended the debate on this
>  draft bill in the Senate’s committees opposed the initiative of
>  limiting interest rates
> 
> 
> 

Some bank representatives and analysts argued that such a law will encourage illegal borrowing, as non-bank financial institutions currently use much higher interest rates and will be forced to refuse crediting some clients.

I could not find the reasons for introducing such a law, just a justification:

> 
> Zamfir [the initiator] claims that he **got his inspiration from the
>  model of 14 other EU countries and especially from Spain.**
> 
> 
> 

So, I am interested in the reasons behind interest rates capping in Spain.

**Question:** What are the main reasons for capping interest rates in Spain?