> That's kind of a strange system. Any idea how it evolved there? Basically sounds like the landlord has to invest the money in such a way as to get a return that would be equivalent to rent but also safe enough so that they can return the deposit. I don't think I'd want to be a landlord there.
I was thinking the same, but here's another way of framing it: they're like real estate agents [1] in the US, except that instead of keeping a 2.5%–5% commission at every sale, they keep the capital gains. They may not need to invest deposits at all to make money.
To me renting under this system doesn't seem clearly better than buying. You're paying most of the money to buy the property, but it's not an investment. You can't come out ahead. But at least there's no risk or hassle of doing property maintenance.
[edit: no, I just saw yongjik's comment: "Under the 'jeonse' system, if the landlord becomes bankrupt, the renter is suddenly out of a large portion of their total wealth, and will be evicted by the new owner - without any money to find the next place. (There are insurances to protect renters but the risk is still there.)" I don't think I'd like to rent under this system at all.]
[1] and property managers who handle repairs and such, but that's probably not how they make their money at $50/month.